Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 1 | |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 2 | #include <linux/ceph/ceph_debug.h> |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 3 | |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 4 | #include <linux/module.h> |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 5 | #include <linux/err.h> |
| 6 | #include <linux/highmem.h> |
| 7 | #include <linux/mm.h> |
| 8 | #include <linux/pagemap.h> |
| 9 | #include <linux/slab.h> |
| 10 | #include <linux/uaccess.h> |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 11 | #ifdef CONFIG_BLOCK |
| 12 | #include <linux/bio.h> |
| 13 | #endif |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 14 | |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 15 | #include <linux/ceph/libceph.h> |
| 16 | #include <linux/ceph/osd_client.h> |
| 17 | #include <linux/ceph/messenger.h> |
| 18 | #include <linux/ceph/decode.h> |
| 19 | #include <linux/ceph/auth.h> |
| 20 | #include <linux/ceph/pagelist.h> |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 21 | |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 22 | #define OSD_OPREPLY_FRONT_LEN 512 |
Yehuda Sadeh | 0d59ab8 | 2010-01-13 17:03:23 -0800 | [diff] [blame] | 23 | |
Alex Elder | 5522ae0 | 2013-05-01 12:43:04 -0500 | [diff] [blame] | 24 | static struct kmem_cache *ceph_osd_request_cache; |
| 25 | |
Tobias Klauser | 9e32789 | 2010-05-20 10:40:19 +0200 | [diff] [blame] | 26 | static const struct ceph_connection_operations osd_con_ops; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 27 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 28 | /* |
| 29 | * Implement client access to distributed object storage cluster. |
| 30 | * |
| 31 | * All data objects are stored within a cluster/cloud of OSDs, or |
| 32 | * "object storage devices." (Note that Ceph OSDs have _nothing_ to |
| 33 | * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply |
| 34 | * remote daemons serving up and coordinating consistent and safe |
| 35 | * access to storage. |
| 36 | * |
| 37 | * Cluster membership and the mapping of data objects onto storage devices |
| 38 | * are described by the osd map. |
| 39 | * |
| 40 | * We keep track of pending OSD requests (read, write), resubmit |
| 41 | * requests to different OSDs when the cluster topology/data layout |
| 42 | * change, or retry the affected requests when the communications |
| 43 | * channel with an OSD is reset. |
| 44 | */ |
| 45 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 46 | static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req); |
| 47 | static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req); |
| 48 | |
| 49 | #if 1 |
| 50 | static inline bool rwsem_is_wrlocked(struct rw_semaphore *sem) |
| 51 | { |
| 52 | bool wrlocked = true; |
| 53 | |
| 54 | if (unlikely(down_read_trylock(sem))) { |
| 55 | wrlocked = false; |
| 56 | up_read(sem); |
| 57 | } |
| 58 | |
| 59 | return wrlocked; |
| 60 | } |
| 61 | static inline void verify_osdc_locked(struct ceph_osd_client *osdc) |
| 62 | { |
| 63 | WARN_ON(!rwsem_is_locked(&osdc->lock)); |
| 64 | } |
| 65 | static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) |
| 66 | { |
| 67 | WARN_ON(!rwsem_is_wrlocked(&osdc->lock)); |
| 68 | } |
| 69 | static inline void verify_osd_locked(struct ceph_osd *osd) |
| 70 | { |
| 71 | struct ceph_osd_client *osdc = osd->o_osdc; |
| 72 | |
| 73 | WARN_ON(!(mutex_is_locked(&osd->lock) && |
| 74 | rwsem_is_locked(&osdc->lock)) && |
| 75 | !rwsem_is_wrlocked(&osdc->lock)); |
| 76 | } |
| 77 | #else |
| 78 | static inline void verify_osdc_locked(struct ceph_osd_client *osdc) { } |
| 79 | static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) { } |
| 80 | static inline void verify_osd_locked(struct ceph_osd *osd) { } |
| 81 | #endif |
| 82 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 83 | /* |
| 84 | * calculate the mapping of a file extent onto an object, and fill out the |
| 85 | * request accordingly. shorten extent as necessary if it crosses an |
| 86 | * object boundary. |
| 87 | * |
| 88 | * fill osd op in request message. |
| 89 | */ |
Alex Elder | dbe0fc4 | 2013-02-15 22:10:17 -0600 | [diff] [blame] | 90 | static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, |
Alex Elder | a19dadf | 2013-03-13 20:50:01 -0500 | [diff] [blame] | 91 | u64 *objnum, u64 *objoff, u64 *objlen) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 92 | { |
Alex Elder | 60e56f1 | 2013-02-15 11:42:29 -0600 | [diff] [blame] | 93 | u64 orig_len = *plen; |
Sage Weil | d63b77f | 2012-09-24 20:59:48 -0700 | [diff] [blame] | 94 | int r; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 95 | |
Alex Elder | 60e56f1 | 2013-02-15 11:42:29 -0600 | [diff] [blame] | 96 | /* object extent? */ |
Alex Elder | 75d1c94 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 97 | r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, |
| 98 | objoff, objlen); |
Sage Weil | d63b77f | 2012-09-24 20:59:48 -0700 | [diff] [blame] | 99 | if (r < 0) |
| 100 | return r; |
Alex Elder | 75d1c94 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 101 | if (*objlen < orig_len) { |
| 102 | *plen = *objlen; |
Alex Elder | 60e56f1 | 2013-02-15 11:42:29 -0600 | [diff] [blame] | 103 | dout(" skipping last %llu, final file extent %llu~%llu\n", |
| 104 | orig_len - *plen, off, *plen); |
| 105 | } |
| 106 | |
Alex Elder | 75d1c94 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 107 | dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 108 | |
Alex Elder | 3ff5f38 | 2013-02-15 22:10:17 -0600 | [diff] [blame] | 109 | return 0; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 110 | } |
| 111 | |
Alex Elder | c54d47b | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 112 | static void ceph_osd_data_init(struct ceph_osd_data *osd_data) |
| 113 | { |
| 114 | memset(osd_data, 0, sizeof (*osd_data)); |
| 115 | osd_data->type = CEPH_OSD_DATA_TYPE_NONE; |
| 116 | } |
| 117 | |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 118 | static void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 119 | struct page **pages, u64 length, u32 alignment, |
| 120 | bool pages_from_pool, bool own_pages) |
| 121 | { |
| 122 | osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; |
| 123 | osd_data->pages = pages; |
| 124 | osd_data->length = length; |
| 125 | osd_data->alignment = alignment; |
| 126 | osd_data->pages_from_pool = pages_from_pool; |
| 127 | osd_data->own_pages = own_pages; |
| 128 | } |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 129 | |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 130 | static void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 131 | struct ceph_pagelist *pagelist) |
| 132 | { |
| 133 | osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; |
| 134 | osd_data->pagelist = pagelist; |
| 135 | } |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 136 | |
| 137 | #ifdef CONFIG_BLOCK |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 138 | static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 139 | struct bio *bio, size_t bio_length) |
| 140 | { |
| 141 | osd_data->type = CEPH_OSD_DATA_TYPE_BIO; |
| 142 | osd_data->bio = bio; |
| 143 | osd_data->bio_length = bio_length; |
| 144 | } |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 145 | #endif /* CONFIG_BLOCK */ |
| 146 | |
Ioana Ciornei | 8a703a3 | 2015-10-22 18:06:07 +0300 | [diff] [blame] | 147 | #define osd_req_op_data(oreq, whch, typ, fld) \ |
| 148 | ({ \ |
| 149 | struct ceph_osd_request *__oreq = (oreq); \ |
| 150 | unsigned int __whch = (whch); \ |
| 151 | BUG_ON(__whch >= __oreq->r_num_ops); \ |
| 152 | &__oreq->r_ops[__whch].typ.fld; \ |
| 153 | }) |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 154 | |
Alex Elder | 4971977 | 2013-02-11 12:33:24 -0600 | [diff] [blame] | 155 | static struct ceph_osd_data * |
| 156 | osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which) |
| 157 | { |
| 158 | BUG_ON(which >= osd_req->r_num_ops); |
| 159 | |
| 160 | return &osd_req->r_ops[which].raw_data_in; |
| 161 | } |
| 162 | |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 163 | struct ceph_osd_data * |
| 164 | osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req, |
Alex Elder | 406e2c9 | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 165 | unsigned int which) |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 166 | { |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 167 | return osd_req_op_data(osd_req, which, extent, osd_data); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 168 | } |
| 169 | EXPORT_SYMBOL(osd_req_op_extent_osd_data); |
| 170 | |
Alex Elder | 4971977 | 2013-02-11 12:33:24 -0600 | [diff] [blame] | 171 | void osd_req_op_raw_data_in_pages(struct ceph_osd_request *osd_req, |
| 172 | unsigned int which, struct page **pages, |
| 173 | u64 length, u32 alignment, |
| 174 | bool pages_from_pool, bool own_pages) |
| 175 | { |
| 176 | struct ceph_osd_data *osd_data; |
| 177 | |
| 178 | osd_data = osd_req_op_raw_data_in(osd_req, which); |
| 179 | ceph_osd_data_pages_init(osd_data, pages, length, alignment, |
| 180 | pages_from_pool, own_pages); |
| 181 | } |
| 182 | EXPORT_SYMBOL(osd_req_op_raw_data_in_pages); |
| 183 | |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 184 | void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *osd_req, |
Alex Elder | 406e2c9 | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 185 | unsigned int which, struct page **pages, |
| 186 | u64 length, u32 alignment, |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 187 | bool pages_from_pool, bool own_pages) |
| 188 | { |
| 189 | struct ceph_osd_data *osd_data; |
| 190 | |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 191 | osd_data = osd_req_op_data(osd_req, which, extent, osd_data); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 192 | ceph_osd_data_pages_init(osd_data, pages, length, alignment, |
| 193 | pages_from_pool, own_pages); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 194 | } |
| 195 | EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages); |
| 196 | |
| 197 | void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *osd_req, |
Alex Elder | 406e2c9 | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 198 | unsigned int which, struct ceph_pagelist *pagelist) |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 199 | { |
| 200 | struct ceph_osd_data *osd_data; |
| 201 | |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 202 | osd_data = osd_req_op_data(osd_req, which, extent, osd_data); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 203 | ceph_osd_data_pagelist_init(osd_data, pagelist); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 204 | } |
| 205 | EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist); |
| 206 | |
| 207 | #ifdef CONFIG_BLOCK |
| 208 | void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req, |
Alex Elder | 406e2c9 | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 209 | unsigned int which, struct bio *bio, size_t bio_length) |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 210 | { |
| 211 | struct ceph_osd_data *osd_data; |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 212 | |
| 213 | osd_data = osd_req_op_data(osd_req, which, extent, osd_data); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 214 | ceph_osd_data_bio_init(osd_data, bio, bio_length); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 215 | } |
| 216 | EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio); |
| 217 | #endif /* CONFIG_BLOCK */ |
| 218 | |
| 219 | static void osd_req_op_cls_request_info_pagelist( |
| 220 | struct ceph_osd_request *osd_req, |
| 221 | unsigned int which, struct ceph_pagelist *pagelist) |
| 222 | { |
| 223 | struct ceph_osd_data *osd_data; |
| 224 | |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 225 | osd_data = osd_req_op_data(osd_req, which, cls, request_info); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 226 | ceph_osd_data_pagelist_init(osd_data, pagelist); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 227 | } |
| 228 | |
Alex Elder | 04017e2 | 2013-04-05 14:46:02 -0500 | [diff] [blame] | 229 | void osd_req_op_cls_request_data_pagelist( |
| 230 | struct ceph_osd_request *osd_req, |
| 231 | unsigned int which, struct ceph_pagelist *pagelist) |
| 232 | { |
| 233 | struct ceph_osd_data *osd_data; |
| 234 | |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 235 | osd_data = osd_req_op_data(osd_req, which, cls, request_data); |
Alex Elder | 04017e2 | 2013-04-05 14:46:02 -0500 | [diff] [blame] | 236 | ceph_osd_data_pagelist_init(osd_data, pagelist); |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 237 | osd_req->r_ops[which].cls.indata_len += pagelist->length; |
| 238 | osd_req->r_ops[which].indata_len += pagelist->length; |
Alex Elder | 04017e2 | 2013-04-05 14:46:02 -0500 | [diff] [blame] | 239 | } |
| 240 | EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist); |
| 241 | |
Alex Elder | 6c57b55 | 2013-04-19 15:34:49 -0500 | [diff] [blame] | 242 | void osd_req_op_cls_request_data_pages(struct ceph_osd_request *osd_req, |
| 243 | unsigned int which, struct page **pages, u64 length, |
| 244 | u32 alignment, bool pages_from_pool, bool own_pages) |
| 245 | { |
| 246 | struct ceph_osd_data *osd_data; |
| 247 | |
| 248 | osd_data = osd_req_op_data(osd_req, which, cls, request_data); |
| 249 | ceph_osd_data_pages_init(osd_data, pages, length, alignment, |
| 250 | pages_from_pool, own_pages); |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 251 | osd_req->r_ops[which].cls.indata_len += length; |
| 252 | osd_req->r_ops[which].indata_len += length; |
Alex Elder | 6c57b55 | 2013-04-19 15:34:49 -0500 | [diff] [blame] | 253 | } |
| 254 | EXPORT_SYMBOL(osd_req_op_cls_request_data_pages); |
| 255 | |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 256 | void osd_req_op_cls_response_data_pages(struct ceph_osd_request *osd_req, |
| 257 | unsigned int which, struct page **pages, u64 length, |
| 258 | u32 alignment, bool pages_from_pool, bool own_pages) |
| 259 | { |
| 260 | struct ceph_osd_data *osd_data; |
| 261 | |
Alex Elder | 863c7eb | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 262 | osd_data = osd_req_op_data(osd_req, which, cls, response_data); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 263 | ceph_osd_data_pages_init(osd_data, pages, length, alignment, |
| 264 | pages_from_pool, own_pages); |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 265 | } |
| 266 | EXPORT_SYMBOL(osd_req_op_cls_response_data_pages); |
| 267 | |
Alex Elder | 23c08a9cb | 2013-04-03 01:28:58 -0500 | [diff] [blame] | 268 | static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) |
| 269 | { |
| 270 | switch (osd_data->type) { |
| 271 | case CEPH_OSD_DATA_TYPE_NONE: |
| 272 | return 0; |
| 273 | case CEPH_OSD_DATA_TYPE_PAGES: |
| 274 | return osd_data->length; |
| 275 | case CEPH_OSD_DATA_TYPE_PAGELIST: |
| 276 | return (u64)osd_data->pagelist->length; |
| 277 | #ifdef CONFIG_BLOCK |
| 278 | case CEPH_OSD_DATA_TYPE_BIO: |
| 279 | return (u64)osd_data->bio_length; |
| 280 | #endif /* CONFIG_BLOCK */ |
| 281 | default: |
| 282 | WARN(true, "unrecognized data type %d\n", (int)osd_data->type); |
| 283 | return 0; |
| 284 | } |
| 285 | } |
| 286 | |
Alex Elder | c54d47b | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 287 | static void ceph_osd_data_release(struct ceph_osd_data *osd_data) |
| 288 | { |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 289 | if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES && osd_data->own_pages) { |
Alex Elder | c54d47b | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 290 | int num_pages; |
| 291 | |
| 292 | num_pages = calc_pages_for((u64)osd_data->alignment, |
| 293 | (u64)osd_data->length); |
| 294 | ceph_release_page_vector(osd_data->pages, num_pages); |
| 295 | } |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 296 | ceph_osd_data_init(osd_data); |
| 297 | } |
| 298 | |
| 299 | static void osd_req_op_data_release(struct ceph_osd_request *osd_req, |
| 300 | unsigned int which) |
| 301 | { |
| 302 | struct ceph_osd_req_op *op; |
| 303 | |
| 304 | BUG_ON(which >= osd_req->r_num_ops); |
| 305 | op = &osd_req->r_ops[which]; |
| 306 | |
| 307 | switch (op->op) { |
| 308 | case CEPH_OSD_OP_READ: |
| 309 | case CEPH_OSD_OP_WRITE: |
Ilya Dryomov | e30b757 | 2015-10-07 17:27:17 +0200 | [diff] [blame] | 310 | case CEPH_OSD_OP_WRITEFULL: |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 311 | ceph_osd_data_release(&op->extent.osd_data); |
| 312 | break; |
| 313 | case CEPH_OSD_OP_CALL: |
| 314 | ceph_osd_data_release(&op->cls.request_info); |
Alex Elder | 04017e2 | 2013-04-05 14:46:02 -0500 | [diff] [blame] | 315 | ceph_osd_data_release(&op->cls.request_data); |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 316 | ceph_osd_data_release(&op->cls.response_data); |
| 317 | break; |
Yan, Zheng | d74b50b | 2014-11-12 14:00:43 +0800 | [diff] [blame] | 318 | case CEPH_OSD_OP_SETXATTR: |
| 319 | case CEPH_OSD_OP_CMPXATTR: |
| 320 | ceph_osd_data_release(&op->xattr.osd_data); |
| 321 | break; |
Yan, Zheng | 66ba609 | 2015-04-27 11:02:35 +0800 | [diff] [blame] | 322 | case CEPH_OSD_OP_STAT: |
| 323 | ceph_osd_data_release(&op->raw_data_in); |
| 324 | break; |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 325 | default: |
| 326 | break; |
| 327 | } |
Alex Elder | c54d47b | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 328 | } |
| 329 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 330 | /* |
Ilya Dryomov | 63244fa | 2016-04-28 16:07:23 +0200 | [diff] [blame] | 331 | * Assumes @t is zero-initialized. |
| 332 | */ |
| 333 | static void target_init(struct ceph_osd_request_target *t) |
| 334 | { |
| 335 | ceph_oid_init(&t->base_oid); |
| 336 | ceph_oloc_init(&t->base_oloc); |
| 337 | ceph_oid_init(&t->target_oid); |
| 338 | ceph_oloc_init(&t->target_oloc); |
| 339 | |
| 340 | ceph_osds_init(&t->acting); |
| 341 | ceph_osds_init(&t->up); |
| 342 | t->size = -1; |
| 343 | t->min_size = -1; |
| 344 | |
| 345 | t->osd = CEPH_HOMELESS_OSD; |
| 346 | } |
| 347 | |
| 348 | static void target_destroy(struct ceph_osd_request_target *t) |
| 349 | { |
| 350 | ceph_oid_destroy(&t->base_oid); |
| 351 | ceph_oid_destroy(&t->target_oid); |
| 352 | } |
| 353 | |
| 354 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 355 | * requests |
| 356 | */ |
Ilya Dryomov | 3540bfd | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 357 | static void request_release_checks(struct ceph_osd_request *req) |
| 358 | { |
| 359 | WARN_ON(!RB_EMPTY_NODE(&req->r_node)); |
| 360 | WARN_ON(!list_empty(&req->r_linger_item)); |
| 361 | WARN_ON(!list_empty(&req->r_linger_osd_item)); |
| 362 | WARN_ON(!list_empty(&req->r_unsafe_item)); |
| 363 | WARN_ON(req->r_osd); |
| 364 | } |
| 365 | |
Ilya Dryomov | 9e94af2 | 2014-06-20 14:14:42 +0400 | [diff] [blame] | 366 | static void ceph_osdc_release_request(struct kref *kref) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 367 | { |
Ilya Dryomov | 9e94af2 | 2014-06-20 14:14:42 +0400 | [diff] [blame] | 368 | struct ceph_osd_request *req = container_of(kref, |
| 369 | struct ceph_osd_request, r_kref); |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 370 | unsigned int which; |
Sage Weil | 415e49a | 2009-12-07 13:37:03 -0800 | [diff] [blame] | 371 | |
Ilya Dryomov | 9e94af2 | 2014-06-20 14:14:42 +0400 | [diff] [blame] | 372 | dout("%s %p (r_request %p r_reply %p)\n", __func__, req, |
| 373 | req->r_request, req->r_reply); |
Ilya Dryomov | 3540bfd | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 374 | request_release_checks(req); |
Ilya Dryomov | 9e94af2 | 2014-06-20 14:14:42 +0400 | [diff] [blame] | 375 | |
Sage Weil | 415e49a | 2009-12-07 13:37:03 -0800 | [diff] [blame] | 376 | if (req->r_request) |
| 377 | ceph_msg_put(req->r_request); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 378 | if (req->r_reply) |
Alex Elder | ab8cb34 | 2012-06-04 14:43:32 -0500 | [diff] [blame] | 379 | ceph_msg_put(req->r_reply); |
Alex Elder | 0fff87e | 2013-02-14 12:16:43 -0600 | [diff] [blame] | 380 | |
Alex Elder | 5476492 | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 381 | for (which = 0; which < req->r_num_ops; which++) |
| 382 | osd_req_op_data_release(req, which); |
Alex Elder | 0fff87e | 2013-02-14 12:16:43 -0600 | [diff] [blame] | 383 | |
Ilya Dryomov | a66dd38 | 2016-04-28 16:07:23 +0200 | [diff] [blame] | 384 | target_destroy(&req->r_t); |
Sage Weil | 415e49a | 2009-12-07 13:37:03 -0800 | [diff] [blame] | 385 | ceph_put_snap_context(req->r_snapc); |
Ilya Dryomov | d30291b | 2016-04-29 19:54:20 +0200 | [diff] [blame] | 386 | |
Sage Weil | 415e49a | 2009-12-07 13:37:03 -0800 | [diff] [blame] | 387 | if (req->r_mempool) |
| 388 | mempool_free(req, req->r_osdc->req_mempool); |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 389 | else if (req->r_num_ops <= CEPH_OSD_SLAB_OPS) |
Alex Elder | 5522ae0 | 2013-05-01 12:43:04 -0500 | [diff] [blame] | 390 | kmem_cache_free(ceph_osd_request_cache, req); |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 391 | else |
| 392 | kfree(req); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 393 | } |
Ilya Dryomov | 9e94af2 | 2014-06-20 14:14:42 +0400 | [diff] [blame] | 394 | |
| 395 | void ceph_osdc_get_request(struct ceph_osd_request *req) |
| 396 | { |
| 397 | dout("%s %p (was %d)\n", __func__, req, |
| 398 | atomic_read(&req->r_kref.refcount)); |
| 399 | kref_get(&req->r_kref); |
| 400 | } |
| 401 | EXPORT_SYMBOL(ceph_osdc_get_request); |
| 402 | |
| 403 | void ceph_osdc_put_request(struct ceph_osd_request *req) |
| 404 | { |
Ilya Dryomov | 3ed97d6 | 2016-04-26 15:05:29 +0200 | [diff] [blame] | 405 | if (req) { |
| 406 | dout("%s %p (was %d)\n", __func__, req, |
| 407 | atomic_read(&req->r_kref.refcount)); |
| 408 | kref_put(&req->r_kref, ceph_osdc_release_request); |
| 409 | } |
Ilya Dryomov | 9e94af2 | 2014-06-20 14:14:42 +0400 | [diff] [blame] | 410 | } |
| 411 | EXPORT_SYMBOL(ceph_osdc_put_request); |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 412 | |
Ilya Dryomov | 3540bfd | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 413 | static void request_init(struct ceph_osd_request *req) |
| 414 | { |
| 415 | /* req only, each op is zeroed in _osd_req_op_init() */ |
| 416 | memset(req, 0, sizeof(*req)); |
| 417 | |
| 418 | kref_init(&req->r_kref); |
| 419 | init_completion(&req->r_completion); |
| 420 | init_completion(&req->r_safe_completion); |
| 421 | RB_CLEAR_NODE(&req->r_node); |
| 422 | INIT_LIST_HEAD(&req->r_linger_item); |
| 423 | INIT_LIST_HEAD(&req->r_linger_osd_item); |
| 424 | INIT_LIST_HEAD(&req->r_unsafe_item); |
| 425 | |
| 426 | target_init(&req->r_t); |
| 427 | } |
| 428 | |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 429 | struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 430 | struct ceph_snap_context *snapc, |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 431 | unsigned int num_ops, |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 432 | bool use_mempool, |
Alex Elder | 54a5400 | 2012-11-13 21:11:15 -0600 | [diff] [blame] | 433 | gfp_t gfp_flags) |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 434 | { |
| 435 | struct ceph_osd_request *req; |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 436 | |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 437 | if (use_mempool) { |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 438 | BUG_ON(num_ops > CEPH_OSD_SLAB_OPS); |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 439 | req = mempool_alloc(osdc->req_mempool, gfp_flags); |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 440 | } else if (num_ops <= CEPH_OSD_SLAB_OPS) { |
| 441 | req = kmem_cache_alloc(ceph_osd_request_cache, gfp_flags); |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 442 | } else { |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 443 | BUG_ON(num_ops > CEPH_OSD_MAX_OPS); |
| 444 | req = kmalloc(sizeof(*req) + num_ops * sizeof(req->r_ops[0]), |
| 445 | gfp_flags); |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 446 | } |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 447 | if (unlikely(!req)) |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 448 | return NULL; |
| 449 | |
Ilya Dryomov | 3540bfd | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 450 | request_init(req); |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 451 | req->r_osdc = osdc; |
| 452 | req->r_mempool = use_mempool; |
Alex Elder | 7952873 | 2013-04-03 21:32:51 -0500 | [diff] [blame] | 453 | req->r_num_ops = num_ops; |
Ilya Dryomov | 8412728 | 2016-04-26 15:39:47 +0200 | [diff] [blame] | 454 | req->r_snapid = CEPH_NOSNAP; |
| 455 | req->r_snapc = ceph_get_snap_context(snapc); |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 456 | |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 457 | dout("%s req %p\n", __func__, req); |
| 458 | return req; |
| 459 | } |
| 460 | EXPORT_SYMBOL(ceph_osdc_alloc_request); |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 461 | |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 462 | int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp) |
| 463 | { |
| 464 | struct ceph_osd_client *osdc = req->r_osdc; |
| 465 | struct ceph_msg *msg; |
| 466 | int msg_size; |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 467 | |
Ilya Dryomov | d30291b | 2016-04-29 19:54:20 +0200 | [diff] [blame] | 468 | WARN_ON(ceph_oid_empty(&req->r_base_oid)); |
| 469 | |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 470 | /* create request message */ |
Ilya Dryomov | ae458f5 | 2016-02-11 13:09:15 +0100 | [diff] [blame] | 471 | msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */ |
| 472 | msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */ |
| 473 | msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ |
| 474 | msg_size += 1 + 8 + 4 + 4; /* pgid */ |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 475 | msg_size += 4 + req->r_base_oid.name_len; /* oid */ |
| 476 | msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op); |
Ilya Dryomov | ae458f5 | 2016-02-11 13:09:15 +0100 | [diff] [blame] | 477 | msg_size += 8; /* snapid */ |
| 478 | msg_size += 8; /* snap_seq */ |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 479 | msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0); |
Ilya Dryomov | ae458f5 | 2016-02-11 13:09:15 +0100 | [diff] [blame] | 480 | msg_size += 4; /* retry_attempt */ |
| 481 | |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 482 | if (req->r_mempool) |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 483 | msg = ceph_msgpool_get(&osdc->msgpool_op, 0); |
| 484 | else |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 485 | msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp, true); |
| 486 | if (!msg) |
| 487 | return -ENOMEM; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 488 | |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 489 | memset(msg->front.iov_base, 0, msg->front.iov_len); |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 490 | req->r_request = msg; |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 491 | |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 492 | /* create reply message */ |
| 493 | msg_size = OSD_OPREPLY_FRONT_LEN; |
Ilya Dryomov | 711da55 | 2016-04-27 18:32:56 +0200 | [diff] [blame] | 494 | msg_size += req->r_base_oid.name_len; |
| 495 | msg_size += req->r_num_ops * sizeof(struct ceph_osd_op); |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 496 | |
| 497 | if (req->r_mempool) |
| 498 | msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); |
| 499 | else |
| 500 | msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, msg_size, gfp, true); |
| 501 | if (!msg) |
| 502 | return -ENOMEM; |
| 503 | |
| 504 | req->r_reply = msg; |
| 505 | |
| 506 | return 0; |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 507 | } |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 508 | EXPORT_SYMBOL(ceph_osdc_alloc_messages); |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 509 | |
Alex Elder | a8dd0a3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 510 | static bool osd_req_opcode_valid(u16 opcode) |
| 511 | { |
| 512 | switch (opcode) { |
Ilya Dryomov | 70b5bfa | 2014-10-02 17:22:29 +0400 | [diff] [blame] | 513 | #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true; |
| 514 | __CEPH_FORALL_OSD_OPS(GENERATE_CASE) |
| 515 | #undef GENERATE_CASE |
Alex Elder | a8dd0a3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 516 | default: |
| 517 | return false; |
| 518 | } |
| 519 | } |
| 520 | |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 521 | /* |
| 522 | * This is an osd op init function for opcodes that have no data or |
| 523 | * other information associated with them. It also serves as a |
| 524 | * common init routine for all the other init functions, below. |
| 525 | */ |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 526 | static struct ceph_osd_req_op * |
Alex Elder | 4971977 | 2013-02-11 12:33:24 -0600 | [diff] [blame] | 527 | _osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 528 | u16 opcode, u32 flags) |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 529 | { |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 530 | struct ceph_osd_req_op *op; |
| 531 | |
| 532 | BUG_ON(which >= osd_req->r_num_ops); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 533 | BUG_ON(!osd_req_opcode_valid(opcode)); |
| 534 | |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 535 | op = &osd_req->r_ops[which]; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 536 | memset(op, 0, sizeof (*op)); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 537 | op->op = opcode; |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 538 | op->flags = flags; |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 539 | |
| 540 | return op; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 541 | } |
| 542 | |
Alex Elder | 4971977 | 2013-02-11 12:33:24 -0600 | [diff] [blame] | 543 | void osd_req_op_init(struct ceph_osd_request *osd_req, |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 544 | unsigned int which, u16 opcode, u32 flags) |
Alex Elder | 4971977 | 2013-02-11 12:33:24 -0600 | [diff] [blame] | 545 | { |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 546 | (void)_osd_req_op_init(osd_req, which, opcode, flags); |
Alex Elder | 4971977 | 2013-02-11 12:33:24 -0600 | [diff] [blame] | 547 | } |
| 548 | EXPORT_SYMBOL(osd_req_op_init); |
| 549 | |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 550 | void osd_req_op_extent_init(struct ceph_osd_request *osd_req, |
| 551 | unsigned int which, u16 opcode, |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 552 | u64 offset, u64 length, |
| 553 | u64 truncate_size, u32 truncate_seq) |
| 554 | { |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 555 | struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, |
| 556 | opcode, 0); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 557 | size_t payload_len = 0; |
| 558 | |
Li Wang | ad7a60d | 2013-08-15 11:51:44 +0800 | [diff] [blame] | 559 | BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && |
Ilya Dryomov | e30b757 | 2015-10-07 17:27:17 +0200 | [diff] [blame] | 560 | opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && |
| 561 | opcode != CEPH_OSD_OP_TRUNCATE); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 562 | |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 563 | op->extent.offset = offset; |
| 564 | op->extent.length = length; |
| 565 | op->extent.truncate_size = truncate_size; |
| 566 | op->extent.truncate_seq = truncate_seq; |
Ilya Dryomov | e30b757 | 2015-10-07 17:27:17 +0200 | [diff] [blame] | 567 | if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 568 | payload_len += length; |
| 569 | |
Ilya Dryomov | de2aa10 | 2016-02-08 13:39:46 +0100 | [diff] [blame] | 570 | op->indata_len = payload_len; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 571 | } |
| 572 | EXPORT_SYMBOL(osd_req_op_extent_init); |
| 573 | |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 574 | void osd_req_op_extent_update(struct ceph_osd_request *osd_req, |
| 575 | unsigned int which, u64 length) |
Alex Elder | e5975c7 | 2013-03-14 14:09:05 -0500 | [diff] [blame] | 576 | { |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 577 | struct ceph_osd_req_op *op; |
| 578 | u64 previous; |
| 579 | |
| 580 | BUG_ON(which >= osd_req->r_num_ops); |
| 581 | op = &osd_req->r_ops[which]; |
| 582 | previous = op->extent.length; |
Alex Elder | e5975c7 | 2013-03-14 14:09:05 -0500 | [diff] [blame] | 583 | |
| 584 | if (length == previous) |
| 585 | return; /* Nothing to do */ |
| 586 | BUG_ON(length > previous); |
| 587 | |
| 588 | op->extent.length = length; |
Ilya Dryomov | de2aa10 | 2016-02-08 13:39:46 +0100 | [diff] [blame] | 589 | op->indata_len -= previous - length; |
Alex Elder | e5975c7 | 2013-03-14 14:09:05 -0500 | [diff] [blame] | 590 | } |
| 591 | EXPORT_SYMBOL(osd_req_op_extent_update); |
| 592 | |
Yan, Zheng | 2c63f49 | 2016-01-07 17:32:54 +0800 | [diff] [blame] | 593 | void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req, |
| 594 | unsigned int which, u64 offset_inc) |
| 595 | { |
| 596 | struct ceph_osd_req_op *op, *prev_op; |
| 597 | |
| 598 | BUG_ON(which + 1 >= osd_req->r_num_ops); |
| 599 | |
| 600 | prev_op = &osd_req->r_ops[which]; |
| 601 | op = _osd_req_op_init(osd_req, which + 1, prev_op->op, prev_op->flags); |
| 602 | /* dup previous one */ |
| 603 | op->indata_len = prev_op->indata_len; |
| 604 | op->outdata_len = prev_op->outdata_len; |
| 605 | op->extent = prev_op->extent; |
| 606 | /* adjust offset */ |
| 607 | op->extent.offset += offset_inc; |
| 608 | op->extent.length -= offset_inc; |
| 609 | |
| 610 | if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) |
| 611 | op->indata_len -= offset_inc; |
| 612 | } |
| 613 | EXPORT_SYMBOL(osd_req_op_extent_dup_last); |
| 614 | |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 615 | void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, |
Alex Elder | 04017e2 | 2013-04-05 14:46:02 -0500 | [diff] [blame] | 616 | u16 opcode, const char *class, const char *method) |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 617 | { |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 618 | struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, |
| 619 | opcode, 0); |
Alex Elder | 5f562df | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 620 | struct ceph_pagelist *pagelist; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 621 | size_t payload_len = 0; |
| 622 | size_t size; |
| 623 | |
| 624 | BUG_ON(opcode != CEPH_OSD_OP_CALL); |
| 625 | |
Alex Elder | 5f562df | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 626 | pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); |
| 627 | BUG_ON(!pagelist); |
| 628 | ceph_pagelist_init(pagelist); |
| 629 | |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 630 | op->cls.class_name = class; |
| 631 | size = strlen(class); |
| 632 | BUG_ON(size > (size_t) U8_MAX); |
| 633 | op->cls.class_len = size; |
Alex Elder | 5f562df | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 634 | ceph_pagelist_append(pagelist, class, size); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 635 | payload_len += size; |
| 636 | |
| 637 | op->cls.method_name = method; |
| 638 | size = strlen(method); |
| 639 | BUG_ON(size > (size_t) U8_MAX); |
| 640 | op->cls.method_len = size; |
Alex Elder | 5f562df | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 641 | ceph_pagelist_append(pagelist, method, size); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 642 | payload_len += size; |
| 643 | |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 644 | osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist); |
Alex Elder | 5f562df | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 645 | |
Ilya Dryomov | de2aa10 | 2016-02-08 13:39:46 +0100 | [diff] [blame] | 646 | op->indata_len = payload_len; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 647 | } |
| 648 | EXPORT_SYMBOL(osd_req_op_cls_init); |
Alex Elder | 8c042b0 | 2013-04-03 01:28:58 -0500 | [diff] [blame] | 649 | |
Yan, Zheng | d74b50b | 2014-11-12 14:00:43 +0800 | [diff] [blame] | 650 | int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, |
| 651 | u16 opcode, const char *name, const void *value, |
| 652 | size_t size, u8 cmp_op, u8 cmp_mode) |
| 653 | { |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 654 | struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, |
| 655 | opcode, 0); |
Yan, Zheng | d74b50b | 2014-11-12 14:00:43 +0800 | [diff] [blame] | 656 | struct ceph_pagelist *pagelist; |
| 657 | size_t payload_len; |
| 658 | |
| 659 | BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); |
| 660 | |
| 661 | pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); |
| 662 | if (!pagelist) |
| 663 | return -ENOMEM; |
| 664 | |
| 665 | ceph_pagelist_init(pagelist); |
| 666 | |
| 667 | payload_len = strlen(name); |
| 668 | op->xattr.name_len = payload_len; |
| 669 | ceph_pagelist_append(pagelist, name, payload_len); |
| 670 | |
| 671 | op->xattr.value_len = size; |
| 672 | ceph_pagelist_append(pagelist, value, size); |
| 673 | payload_len += size; |
| 674 | |
| 675 | op->xattr.cmp_op = cmp_op; |
| 676 | op->xattr.cmp_mode = cmp_mode; |
| 677 | |
| 678 | ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); |
Ilya Dryomov | de2aa10 | 2016-02-08 13:39:46 +0100 | [diff] [blame] | 679 | op->indata_len = payload_len; |
Yan, Zheng | d74b50b | 2014-11-12 14:00:43 +0800 | [diff] [blame] | 680 | return 0; |
| 681 | } |
| 682 | EXPORT_SYMBOL(osd_req_op_xattr_init); |
| 683 | |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 684 | void osd_req_op_watch_init(struct ceph_osd_request *osd_req, |
| 685 | unsigned int which, u16 opcode, |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 686 | u64 cookie, u64 version, int flag) |
| 687 | { |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 688 | struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, |
| 689 | opcode, 0); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 690 | |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 691 | BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 692 | |
| 693 | op->watch.cookie = cookie; |
Alex Elder | 9ef1ee5 | 2013-04-21 16:51:50 -0500 | [diff] [blame] | 694 | op->watch.ver = version; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 695 | if (opcode == CEPH_OSD_OP_WATCH && flag) |
Alex Elder | c99d2d4 | 2013-04-05 01:27:11 -0500 | [diff] [blame] | 696 | op->watch.flag = (u8)1; |
Alex Elder | 33803f3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 697 | } |
| 698 | EXPORT_SYMBOL(osd_req_op_watch_init); |
| 699 | |
Ilya Dryomov | c647b8a | 2014-02-25 16:22:27 +0200 | [diff] [blame] | 700 | void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req, |
| 701 | unsigned int which, |
| 702 | u64 expected_object_size, |
| 703 | u64 expected_write_size) |
| 704 | { |
| 705 | struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 706 | CEPH_OSD_OP_SETALLOCHINT, |
| 707 | 0); |
Ilya Dryomov | c647b8a | 2014-02-25 16:22:27 +0200 | [diff] [blame] | 708 | |
| 709 | op->alloc_hint.expected_object_size = expected_object_size; |
| 710 | op->alloc_hint.expected_write_size = expected_write_size; |
| 711 | |
| 712 | /* |
| 713 | * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed |
| 714 | * not worth a feature bit. Set FAILOK per-op flag to make |
| 715 | * sure older osds don't trip over an unsupported opcode. |
| 716 | */ |
| 717 | op->flags |= CEPH_OSD_OP_FLAG_FAILOK; |
| 718 | } |
| 719 | EXPORT_SYMBOL(osd_req_op_alloc_hint_init); |
| 720 | |
Alex Elder | 90af360 | 2013-04-05 14:46:01 -0500 | [diff] [blame] | 721 | static void ceph_osdc_msg_data_add(struct ceph_msg *msg, |
Alex Elder | ec9123c | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 722 | struct ceph_osd_data *osd_data) |
| 723 | { |
| 724 | u64 length = ceph_osd_data_length(osd_data); |
| 725 | |
| 726 | if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { |
| 727 | BUG_ON(length > (u64) SIZE_MAX); |
| 728 | if (length) |
Alex Elder | 90af360 | 2013-04-05 14:46:01 -0500 | [diff] [blame] | 729 | ceph_msg_data_add_pages(msg, osd_data->pages, |
Alex Elder | ec9123c | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 730 | length, osd_data->alignment); |
| 731 | } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { |
| 732 | BUG_ON(!length); |
Alex Elder | 90af360 | 2013-04-05 14:46:01 -0500 | [diff] [blame] | 733 | ceph_msg_data_add_pagelist(msg, osd_data->pagelist); |
Alex Elder | ec9123c | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 734 | #ifdef CONFIG_BLOCK |
| 735 | } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { |
Alex Elder | 90af360 | 2013-04-05 14:46:01 -0500 | [diff] [blame] | 736 | ceph_msg_data_add_bio(msg, osd_data->bio, length); |
Alex Elder | ec9123c | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 737 | #endif |
| 738 | } else { |
| 739 | BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); |
| 740 | } |
| 741 | } |
| 742 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 743 | static u32 osd_req_encode_op(struct ceph_osd_op *dst, |
| 744 | const struct ceph_osd_req_op *src) |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 745 | { |
Alex Elder | a8dd0a3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 746 | if (WARN_ON(!osd_req_opcode_valid(src->op))) { |
| 747 | pr_err("unrecognized osd opcode %d\n", src->op); |
| 748 | |
| 749 | return 0; |
| 750 | } |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 751 | |
Alex Elder | 065a68f | 2012-04-20 15:49:43 -0500 | [diff] [blame] | 752 | switch (src->op) { |
Alex Elder | fbfab53 | 2013-02-08 09:55:48 -0600 | [diff] [blame] | 753 | case CEPH_OSD_OP_STAT: |
| 754 | break; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 755 | case CEPH_OSD_OP_READ: |
| 756 | case CEPH_OSD_OP_WRITE: |
Ilya Dryomov | e30b757 | 2015-10-07 17:27:17 +0200 | [diff] [blame] | 757 | case CEPH_OSD_OP_WRITEFULL: |
Li Wang | ad7a60d | 2013-08-15 11:51:44 +0800 | [diff] [blame] | 758 | case CEPH_OSD_OP_ZERO: |
Li Wang | ad7a60d | 2013-08-15 11:51:44 +0800 | [diff] [blame] | 759 | case CEPH_OSD_OP_TRUNCATE: |
Alex Elder | 175face | 2013-03-08 13:35:36 -0600 | [diff] [blame] | 760 | dst->extent.offset = cpu_to_le64(src->extent.offset); |
| 761 | dst->extent.length = cpu_to_le64(src->extent.length); |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 762 | dst->extent.truncate_size = |
| 763 | cpu_to_le64(src->extent.truncate_size); |
| 764 | dst->extent.truncate_seq = |
| 765 | cpu_to_le32(src->extent.truncate_seq); |
| 766 | break; |
Yehuda Sadeh | ae1533b | 2010-05-18 16:38:08 -0700 | [diff] [blame] | 767 | case CEPH_OSD_OP_CALL: |
Yehuda Sadeh | ae1533b | 2010-05-18 16:38:08 -0700 | [diff] [blame] | 768 | dst->cls.class_len = src->cls.class_len; |
| 769 | dst->cls.method_len = src->cls.method_len; |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 770 | dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); |
Yehuda Sadeh | ae1533b | 2010-05-18 16:38:08 -0700 | [diff] [blame] | 771 | break; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 772 | case CEPH_OSD_OP_STARTSYNC: |
| 773 | break; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 774 | case CEPH_OSD_OP_NOTIFY_ACK: |
| 775 | case CEPH_OSD_OP_WATCH: |
| 776 | dst->watch.cookie = cpu_to_le64(src->watch.cookie); |
| 777 | dst->watch.ver = cpu_to_le64(src->watch.ver); |
| 778 | dst->watch.flag = src->watch.flag; |
| 779 | break; |
Ilya Dryomov | c647b8a | 2014-02-25 16:22:27 +0200 | [diff] [blame] | 780 | case CEPH_OSD_OP_SETALLOCHINT: |
| 781 | dst->alloc_hint.expected_object_size = |
| 782 | cpu_to_le64(src->alloc_hint.expected_object_size); |
| 783 | dst->alloc_hint.expected_write_size = |
| 784 | cpu_to_le64(src->alloc_hint.expected_write_size); |
| 785 | break; |
Yan, Zheng | d74b50b | 2014-11-12 14:00:43 +0800 | [diff] [blame] | 786 | case CEPH_OSD_OP_SETXATTR: |
| 787 | case CEPH_OSD_OP_CMPXATTR: |
| 788 | dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); |
| 789 | dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); |
| 790 | dst->xattr.cmp_op = src->xattr.cmp_op; |
| 791 | dst->xattr.cmp_mode = src->xattr.cmp_mode; |
Yan, Zheng | d74b50b | 2014-11-12 14:00:43 +0800 | [diff] [blame] | 792 | break; |
Yan, Zheng | 864e919 | 2014-11-13 10:47:25 +0800 | [diff] [blame] | 793 | case CEPH_OSD_OP_CREATE: |
| 794 | case CEPH_OSD_OP_DELETE: |
| 795 | break; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 796 | default: |
Alex Elder | 4c46459 | 2013-02-15 11:42:30 -0600 | [diff] [blame] | 797 | pr_err("unsupported osd opcode %s\n", |
Alex Elder | 8f63ca2 | 2013-03-04 11:08:29 -0600 | [diff] [blame] | 798 | ceph_osd_op_name(src->op)); |
Alex Elder | 4c46459 | 2013-02-15 11:42:30 -0600 | [diff] [blame] | 799 | WARN_ON(1); |
Alex Elder | a8dd0a3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 800 | |
| 801 | return 0; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 802 | } |
Ilya Dryomov | 7b25bf5 | 2014-02-25 16:22:26 +0200 | [diff] [blame] | 803 | |
Alex Elder | a8dd0a3 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 804 | dst->op = cpu_to_le16(src->op); |
Ilya Dryomov | 7b25bf5 | 2014-02-25 16:22:26 +0200 | [diff] [blame] | 805 | dst->flags = cpu_to_le32(src->flags); |
Ilya Dryomov | de2aa10 | 2016-02-08 13:39:46 +0100 | [diff] [blame] | 806 | dst->payload_len = cpu_to_le32(src->indata_len); |
Alex Elder | 175face | 2013-03-08 13:35:36 -0600 | [diff] [blame] | 807 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 808 | return src->indata_len; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 809 | } |
| 810 | |
Yehuda Sadeh | 3499e8a | 2010-04-06 14:51:47 -0700 | [diff] [blame] | 811 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 812 | * build new request AND message, calculate layout, and adjust file |
| 813 | * extent as needed. |
| 814 | * |
| 815 | * if the file was recently truncated, we include information about its |
| 816 | * old and new size so that the object can be updated appropriately. (we |
| 817 | * avoid synchronously deleting truncated objects because it's slow.) |
| 818 | * |
| 819 | * if @do_sync, include a 'startsync' command so that the osd will flush |
| 820 | * data quickly. |
| 821 | */ |
| 822 | struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, |
| 823 | struct ceph_file_layout *layout, |
| 824 | struct ceph_vino vino, |
Yan, Zheng | 715e4cd | 2014-11-13 14:40:37 +0800 | [diff] [blame] | 825 | u64 off, u64 *plen, |
| 826 | unsigned int which, int num_ops, |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 827 | int opcode, int flags, |
| 828 | struct ceph_snap_context *snapc, |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 829 | u32 truncate_seq, |
| 830 | u64 truncate_size, |
Alex Elder | 153e516 | 2013-03-01 18:00:15 -0600 | [diff] [blame] | 831 | bool use_mempool) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 832 | { |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 833 | struct ceph_osd_request *req; |
Alex Elder | 75d1c94 | 2013-03-13 20:50:00 -0500 | [diff] [blame] | 834 | u64 objnum = 0; |
| 835 | u64 objoff = 0; |
| 836 | u64 objlen = 0; |
Sage Weil | 6816282 | 2012-09-24 21:01:02 -0700 | [diff] [blame] | 837 | int r; |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 838 | |
Li Wang | ad7a60d | 2013-08-15 11:51:44 +0800 | [diff] [blame] | 839 | BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && |
Yan, Zheng | 864e919 | 2014-11-13 10:47:25 +0800 | [diff] [blame] | 840 | opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && |
| 841 | opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE); |
Yehuda Sadeh | 68b4476 | 2010-04-06 15:01:27 -0700 | [diff] [blame] | 842 | |
Alex Elder | acead00 | 2013-03-14 14:09:05 -0500 | [diff] [blame] | 843 | req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, |
Alex Elder | ae7ca4a3 | 2012-11-13 21:11:15 -0600 | [diff] [blame] | 844 | GFP_NOFS); |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 845 | if (!req) { |
| 846 | r = -ENOMEM; |
| 847 | goto fail; |
| 848 | } |
Alex Elder | 7952873 | 2013-04-03 21:32:51 -0500 | [diff] [blame] | 849 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 850 | /* calculate max write size */ |
Alex Elder | a19dadf | 2013-03-13 20:50:01 -0500 | [diff] [blame] | 851 | r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 852 | if (r) |
| 853 | goto fail; |
Alex Elder | a19dadf | 2013-03-13 20:50:01 -0500 | [diff] [blame] | 854 | |
Yan, Zheng | 864e919 | 2014-11-13 10:47:25 +0800 | [diff] [blame] | 855 | if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { |
Yan, Zheng | 144cba1 | 2015-04-27 11:09:54 +0800 | [diff] [blame] | 856 | osd_req_op_init(req, which, opcode, 0); |
Yan, Zheng | 864e919 | 2014-11-13 10:47:25 +0800 | [diff] [blame] | 857 | } else { |
| 858 | u32 object_size = le32_to_cpu(layout->fl_object_size); |
| 859 | u32 object_base = off - objoff; |
| 860 | if (!(truncate_seq == 1 && truncate_size == -1ULL)) { |
| 861 | if (truncate_size <= object_base) { |
| 862 | truncate_size = 0; |
| 863 | } else { |
| 864 | truncate_size -= object_base; |
| 865 | if (truncate_size > object_size) |
| 866 | truncate_size = object_size; |
| 867 | } |
Yan, Zheng | ccca4e3 | 2013-06-02 18:40:23 +0800 | [diff] [blame] | 868 | } |
Yan, Zheng | 715e4cd | 2014-11-13 14:40:37 +0800 | [diff] [blame] | 869 | osd_req_op_extent_init(req, which, opcode, objoff, objlen, |
Yan, Zheng | 864e919 | 2014-11-13 10:47:25 +0800 | [diff] [blame] | 870 | truncate_size, truncate_seq); |
Alex Elder | a19dadf | 2013-03-13 20:50:01 -0500 | [diff] [blame] | 871 | } |
Alex Elder | d18d1e2 | 2013-03-13 20:50:01 -0500 | [diff] [blame] | 872 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 873 | req->r_flags = flags; |
Ilya Dryomov | 3c972c9 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 874 | req->r_base_oloc.pool = ceph_file_layout_pg_pool(*layout); |
Ilya Dryomov | d30291b | 2016-04-29 19:54:20 +0200 | [diff] [blame] | 875 | ceph_oid_printf(&req->r_base_oid, "%llx.%08llx", vino.ino, objnum); |
Alex Elder | dbe0fc4 | 2013-02-15 22:10:17 -0600 | [diff] [blame] | 876 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 877 | req->r_snapid = vino.snap; |
| 878 | if (flags & CEPH_OSD_FLAG_WRITE) |
| 879 | req->r_data_offset = off; |
| 880 | |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 881 | r = ceph_osdc_alloc_messages(req, GFP_NOFS); |
| 882 | if (r) |
| 883 | goto fail; |
| 884 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 885 | return req; |
Ilya Dryomov | 13d1ad1 | 2016-04-27 14:15:51 +0200 | [diff] [blame] | 886 | |
| 887 | fail: |
| 888 | ceph_osdc_put_request(req); |
| 889 | return ERR_PTR(r); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 890 | } |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 891 | EXPORT_SYMBOL(ceph_osdc_new_request); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 892 | |
| 893 | /* |
| 894 | * We keep osd requests in an rbtree, sorted by ->r_tid. |
| 895 | */ |
Ilya Dryomov | fcd00b6 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 896 | DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 897 | |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 898 | static bool osd_homeless(struct ceph_osd *osd) |
| 899 | { |
| 900 | return osd->o_osd == CEPH_HOMELESS_OSD; |
| 901 | } |
| 902 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 903 | static bool osd_registered(struct ceph_osd *osd) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 904 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 905 | verify_osdc_locked(osd->o_osdc); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 906 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 907 | return !RB_EMPTY_NODE(&osd->o_node); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | /* |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 911 | * Assumes @osd is zero-initialized. |
| 912 | */ |
| 913 | static void osd_init(struct ceph_osd *osd) |
| 914 | { |
| 915 | atomic_set(&osd->o_ref, 1); |
| 916 | RB_CLEAR_NODE(&osd->o_node); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 917 | osd->o_requests = RB_ROOT; |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 918 | INIT_LIST_HEAD(&osd->o_linger_requests); |
| 919 | INIT_LIST_HEAD(&osd->o_osd_lru); |
| 920 | INIT_LIST_HEAD(&osd->o_keepalive_item); |
| 921 | osd->o_incarnation = 1; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 922 | mutex_init(&osd->lock); |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 923 | } |
| 924 | |
| 925 | static void osd_cleanup(struct ceph_osd *osd) |
| 926 | { |
| 927 | WARN_ON(!RB_EMPTY_NODE(&osd->o_node)); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 928 | WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 929 | WARN_ON(!list_empty(&osd->o_linger_requests)); |
| 930 | WARN_ON(!list_empty(&osd->o_osd_lru)); |
| 931 | WARN_ON(!list_empty(&osd->o_keepalive_item)); |
| 932 | |
| 933 | if (osd->o_auth.authorizer) { |
| 934 | WARN_ON(osd_homeless(osd)); |
| 935 | ceph_auth_destroy_authorizer(osd->o_auth.authorizer); |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 940 | * Track open sessions with osds. |
| 941 | */ |
Alex Elder | e10006f | 2012-05-26 23:26:43 -0500 | [diff] [blame] | 942 | static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 943 | { |
| 944 | struct ceph_osd *osd; |
| 945 | |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 946 | WARN_ON(onum == CEPH_HOMELESS_OSD); |
| 947 | |
Ilya Dryomov | 7a28f59 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 948 | osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 949 | osd_init(osd); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 950 | osd->o_osdc = osdc; |
Alex Elder | e10006f | 2012-05-26 23:26:43 -0500 | [diff] [blame] | 951 | osd->o_osd = onum; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 952 | |
Sage Weil | b7a9e5d | 2012-06-27 12:24:08 -0700 | [diff] [blame] | 953 | ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 954 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 955 | return osd; |
| 956 | } |
| 957 | |
| 958 | static struct ceph_osd *get_osd(struct ceph_osd *osd) |
| 959 | { |
| 960 | if (atomic_inc_not_zero(&osd->o_ref)) { |
| 961 | dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, |
| 962 | atomic_read(&osd->o_ref)); |
| 963 | return osd; |
| 964 | } else { |
| 965 | dout("get_osd %p FAIL\n", osd); |
| 966 | return NULL; |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | static void put_osd(struct ceph_osd *osd) |
| 971 | { |
| 972 | dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), |
| 973 | atomic_read(&osd->o_ref) - 1); |
Ilya Dryomov | b28ec2f | 2015-02-16 11:49:42 +0300 | [diff] [blame] | 974 | if (atomic_dec_and_test(&osd->o_ref)) { |
Ilya Dryomov | 0247a0c | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 975 | osd_cleanup(osd); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 976 | kfree(osd); |
Sage Weil | 79494d1 | 2010-05-27 14:15:49 -0700 | [diff] [blame] | 977 | } |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 978 | } |
| 979 | |
Ilya Dryomov | fcd00b6 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 980 | DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node) |
| 981 | |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 982 | static void __move_osd_to_lru(struct ceph_osd *osd) |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 983 | { |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 984 | struct ceph_osd_client *osdc = osd->o_osdc; |
| 985 | |
| 986 | dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 987 | BUG_ON(!list_empty(&osd->o_osd_lru)); |
Ilya Dryomov | bbf37ec | 2014-06-20 14:14:41 +0400 | [diff] [blame] | 988 | |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 989 | spin_lock(&osdc->osd_lru_lock); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 990 | list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 991 | spin_unlock(&osdc->osd_lru_lock); |
| 992 | |
Ilya Dryomov | a319bf5 | 2015-05-15 12:02:17 +0300 | [diff] [blame] | 993 | osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl; |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 994 | } |
| 995 | |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 996 | static void maybe_move_osd_to_lru(struct ceph_osd *osd) |
Ilya Dryomov | bbf37ec | 2014-06-20 14:14:41 +0400 | [diff] [blame] | 997 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 998 | if (RB_EMPTY_ROOT(&osd->o_requests) && |
Ilya Dryomov | bbf37ec | 2014-06-20 14:14:41 +0400 | [diff] [blame] | 999 | list_empty(&osd->o_linger_requests)) |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1000 | __move_osd_to_lru(osd); |
Ilya Dryomov | bbf37ec | 2014-06-20 14:14:41 +0400 | [diff] [blame] | 1001 | } |
| 1002 | |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 1003 | static void __remove_osd_from_lru(struct ceph_osd *osd) |
| 1004 | { |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1005 | struct ceph_osd_client *osdc = osd->o_osdc; |
| 1006 | |
| 1007 | dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); |
| 1008 | |
| 1009 | spin_lock(&osdc->osd_lru_lock); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 1010 | if (!list_empty(&osd->o_osd_lru)) |
| 1011 | list_del_init(&osd->o_osd_lru); |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1012 | spin_unlock(&osdc->osd_lru_lock); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 1013 | } |
| 1014 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1015 | /* |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1016 | * Close the connection and assign any leftover requests to the |
| 1017 | * homeless session. |
| 1018 | */ |
| 1019 | static void close_osd(struct ceph_osd *osd) |
| 1020 | { |
| 1021 | struct ceph_osd_client *osdc = osd->o_osdc; |
| 1022 | struct rb_node *n; |
| 1023 | |
| 1024 | verify_osdc_wrlocked(osdc); |
| 1025 | dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); |
| 1026 | |
| 1027 | ceph_con_close(&osd->o_con); |
| 1028 | |
| 1029 | for (n = rb_first(&osd->o_requests); n; ) { |
| 1030 | struct ceph_osd_request *req = |
| 1031 | rb_entry(n, struct ceph_osd_request, r_node); |
| 1032 | |
| 1033 | n = rb_next(n); /* unlink_request() */ |
| 1034 | |
| 1035 | dout(" reassigning req %p tid %llu\n", req, req->r_tid); |
| 1036 | unlink_request(osd, req); |
| 1037 | link_request(&osdc->homeless_osd, req); |
| 1038 | } |
| 1039 | |
| 1040 | __remove_osd_from_lru(osd); |
| 1041 | erase_osd(&osdc->osds, osd); |
| 1042 | put_osd(osd); |
| 1043 | } |
| 1044 | |
| 1045 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1046 | * reset osd connect |
| 1047 | */ |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1048 | static int reopen_osd(struct ceph_osd *osd) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1049 | { |
Alex Elder | c3acb18 | 2012-12-07 09:57:58 -0600 | [diff] [blame] | 1050 | struct ceph_entity_addr *peer_addr; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1051 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1052 | dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); |
| 1053 | |
| 1054 | if (RB_EMPTY_ROOT(&osd->o_requests) && |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1055 | list_empty(&osd->o_linger_requests)) { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1056 | close_osd(osd); |
Alex Elder | c3acb18 | 2012-12-07 09:57:58 -0600 | [diff] [blame] | 1057 | return -ENODEV; |
| 1058 | } |
| 1059 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1060 | peer_addr = &osd->o_osdc->osdmap->osd_addr[osd->o_osd]; |
Alex Elder | c3acb18 | 2012-12-07 09:57:58 -0600 | [diff] [blame] | 1061 | if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && |
| 1062 | !ceph_con_opened(&osd->o_con)) { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1063 | struct rb_node *n; |
Alex Elder | c3acb18 | 2012-12-07 09:57:58 -0600 | [diff] [blame] | 1064 | |
Ilya Dryomov | 0b4af2e | 2014-01-16 19:18:27 +0200 | [diff] [blame] | 1065 | dout("osd addr hasn't changed and connection never opened, " |
| 1066 | "letting msgr retry\n"); |
Sage Weil | 87b315a | 2010-03-22 14:51:18 -0700 | [diff] [blame] | 1067 | /* touch each r_stamp for handle_timeout()'s benfit */ |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1068 | for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { |
| 1069 | struct ceph_osd_request *req = |
| 1070 | rb_entry(n, struct ceph_osd_request, r_node); |
Sage Weil | 87b315a | 2010-03-22 14:51:18 -0700 | [diff] [blame] | 1071 | req->r_stamp = jiffies; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1072 | } |
Alex Elder | c3acb18 | 2012-12-07 09:57:58 -0600 | [diff] [blame] | 1073 | |
| 1074 | return -EAGAIN; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1075 | } |
Alex Elder | c3acb18 | 2012-12-07 09:57:58 -0600 | [diff] [blame] | 1076 | |
| 1077 | ceph_con_close(&osd->o_con); |
| 1078 | ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); |
| 1079 | osd->o_incarnation++; |
| 1080 | |
| 1081 | return 0; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1082 | } |
| 1083 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1084 | static struct ceph_osd *lookup_create_osd(struct ceph_osd_client *osdc, int o, |
| 1085 | bool wrlocked) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1086 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1087 | struct ceph_osd *osd; |
| 1088 | |
| 1089 | if (wrlocked) |
| 1090 | verify_osdc_wrlocked(osdc); |
| 1091 | else |
| 1092 | verify_osdc_locked(osdc); |
| 1093 | |
| 1094 | if (o != CEPH_HOMELESS_OSD) |
| 1095 | osd = lookup_osd(&osdc->osds, o); |
| 1096 | else |
| 1097 | osd = &osdc->homeless_osd; |
| 1098 | if (!osd) { |
| 1099 | if (!wrlocked) |
| 1100 | return ERR_PTR(-EAGAIN); |
| 1101 | |
| 1102 | osd = create_osd(osdc, o); |
| 1103 | insert_osd(&osdc->osds, osd); |
| 1104 | ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, |
| 1105 | &osdc->osdmap->osd_addr[osd->o_osd]); |
| 1106 | } |
| 1107 | |
| 1108 | dout("%s osdc %p osd%d -> osd %p\n", __func__, osdc, o, osd); |
| 1109 | return osd; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1110 | } |
| 1111 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1112 | /* |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1113 | * Create request <-> OSD session relation. |
| 1114 | * |
| 1115 | * @req has to be assigned a tid, @osd may be homeless. |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1116 | */ |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1117 | static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1118 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1119 | verify_osd_locked(osd); |
| 1120 | WARN_ON(!req->r_tid || req->r_osd); |
| 1121 | dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, |
| 1122 | req, req->r_tid); |
Sage Weil | 35f9f8a | 2012-05-16 15:16:38 -0500 | [diff] [blame] | 1123 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1124 | if (!osd_homeless(osd)) |
| 1125 | __remove_osd_from_lru(osd); |
| 1126 | else |
| 1127 | atomic_inc(&osd->o_osdc->num_homeless); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1128 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1129 | get_osd(osd); |
| 1130 | insert_request(&osd->o_requests, req); |
| 1131 | req->r_osd = osd; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1132 | } |
| 1133 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1134 | static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1135 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1136 | verify_osd_locked(osd); |
| 1137 | WARN_ON(req->r_osd != osd); |
| 1138 | dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, |
| 1139 | req, req->r_tid); |
| 1140 | |
| 1141 | req->r_osd = NULL; |
| 1142 | erase_request(&osd->o_requests, req); |
| 1143 | put_osd(osd); |
| 1144 | |
| 1145 | if (!osd_homeless(osd)) |
| 1146 | maybe_move_osd_to_lru(osd); |
| 1147 | else |
| 1148 | atomic_dec(&osd->o_osdc->num_homeless); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1149 | } |
| 1150 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1151 | static void __register_linger_request(struct ceph_osd *osd, |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1152 | struct ceph_osd_request *req) |
| 1153 | { |
Ilya Dryomov | af59306 | 2014-06-20 18:29:20 +0400 | [diff] [blame] | 1154 | dout("%s %p tid %llu\n", __func__, req, req->r_tid); |
| 1155 | WARN_ON(!req->r_linger); |
| 1156 | |
Alex Elder | 96e4dac | 2013-05-22 20:54:25 -0500 | [diff] [blame] | 1157 | ceph_osdc_get_request(req); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1158 | list_add_tail(&req->r_linger_item, &osd->o_osdc->req_linger); |
| 1159 | list_add_tail(&req->r_linger_osd_item, &osd->o_linger_requests); |
| 1160 | __remove_osd_from_lru(osd); |
| 1161 | req->r_osd = osd; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1162 | } |
| 1163 | |
| 1164 | static void __unregister_linger_request(struct ceph_osd_client *osdc, |
| 1165 | struct ceph_osd_request *req) |
| 1166 | { |
Ilya Dryomov | af59306 | 2014-06-20 18:29:20 +0400 | [diff] [blame] | 1167 | WARN_ON(!req->r_linger); |
| 1168 | |
| 1169 | if (list_empty(&req->r_linger_item)) { |
| 1170 | dout("%s %p tid %llu not registered\n", __func__, req, |
| 1171 | req->r_tid); |
| 1172 | return; |
| 1173 | } |
| 1174 | |
| 1175 | dout("%s %p tid %llu\n", __func__, req, req->r_tid); |
Alex Elder | 61c7403 | 2012-12-06 09:37:23 -0600 | [diff] [blame] | 1176 | list_del_init(&req->r_linger_item); |
Ilya Dryomov | af59306 | 2014-06-20 18:29:20 +0400 | [diff] [blame] | 1177 | |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1178 | if (req->r_osd) { |
Ilya Dryomov | 1d0326b | 2014-06-20 14:14:41 +0400 | [diff] [blame] | 1179 | list_del_init(&req->r_linger_osd_item); |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1180 | maybe_move_osd_to_lru(req->r_osd); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1181 | if (RB_EMPTY_ROOT(&req->r_osd->o_requests)) |
Sage Weil | fbdb919 | 2011-03-29 12:11:06 -0700 | [diff] [blame] | 1182 | req->r_osd = NULL; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1183 | } |
Alex Elder | 96e4dac | 2013-05-22 20:54:25 -0500 | [diff] [blame] | 1184 | ceph_osdc_put_request(req); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1185 | } |
| 1186 | |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1187 | void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, |
| 1188 | struct ceph_osd_request *req) |
| 1189 | { |
| 1190 | if (!req->r_linger) { |
| 1191 | dout("set_request_linger %p\n", req); |
| 1192 | req->r_linger = 1; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 1193 | } |
| 1194 | } |
| 1195 | EXPORT_SYMBOL(ceph_osdc_set_request_linger); |
| 1196 | |
Ilya Dryomov | 63244fa | 2016-04-28 16:07:23 +0200 | [diff] [blame] | 1197 | static bool __pool_full(struct ceph_pg_pool_info *pi) |
| 1198 | { |
| 1199 | return pi->flags & CEPH_POOL_FLAG_FULL; |
| 1200 | } |
| 1201 | |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 1202 | static bool have_pool_full(struct ceph_osd_client *osdc) |
| 1203 | { |
| 1204 | struct rb_node *n; |
| 1205 | |
| 1206 | for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { |
| 1207 | struct ceph_pg_pool_info *pi = |
| 1208 | rb_entry(n, struct ceph_pg_pool_info, node); |
| 1209 | |
| 1210 | if (__pool_full(pi)) |
| 1211 | return true; |
| 1212 | } |
| 1213 | |
| 1214 | return false; |
| 1215 | } |
| 1216 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1217 | static bool pool_full(struct ceph_osd_client *osdc, s64 pool_id) |
| 1218 | { |
| 1219 | struct ceph_pg_pool_info *pi; |
| 1220 | |
| 1221 | pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); |
| 1222 | if (!pi) |
| 1223 | return false; |
| 1224 | |
| 1225 | return __pool_full(pi); |
| 1226 | } |
| 1227 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1228 | /* |
Josh Durgin | d29adb3 | 2013-12-02 19:11:48 -0800 | [diff] [blame] | 1229 | * Returns whether a request should be blocked from being sent |
| 1230 | * based on the current osdmap and osd_client settings. |
Josh Durgin | d29adb3 | 2013-12-02 19:11:48 -0800 | [diff] [blame] | 1231 | */ |
Ilya Dryomov | 63244fa | 2016-04-28 16:07:23 +0200 | [diff] [blame] | 1232 | static bool target_should_be_paused(struct ceph_osd_client *osdc, |
| 1233 | const struct ceph_osd_request_target *t, |
| 1234 | struct ceph_pg_pool_info *pi) |
| 1235 | { |
| 1236 | bool pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); |
| 1237 | bool pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || |
| 1238 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || |
| 1239 | __pool_full(pi); |
| 1240 | |
| 1241 | WARN_ON(pi->id != t->base_oloc.pool); |
| 1242 | return (t->flags & CEPH_OSD_FLAG_READ && pauserd) || |
| 1243 | (t->flags & CEPH_OSD_FLAG_WRITE && pausewr); |
| 1244 | } |
| 1245 | |
Ilya Dryomov | 63244fa | 2016-04-28 16:07:23 +0200 | [diff] [blame] | 1246 | enum calc_target_result { |
| 1247 | CALC_TARGET_NO_ACTION = 0, |
| 1248 | CALC_TARGET_NEED_RESEND, |
| 1249 | CALC_TARGET_POOL_DNE, |
| 1250 | }; |
| 1251 | |
| 1252 | static enum calc_target_result calc_target(struct ceph_osd_client *osdc, |
| 1253 | struct ceph_osd_request_target *t, |
| 1254 | u32 *last_force_resend, |
| 1255 | bool any_change) |
| 1256 | { |
| 1257 | struct ceph_pg_pool_info *pi; |
| 1258 | struct ceph_pg pgid, last_pgid; |
| 1259 | struct ceph_osds up, acting; |
| 1260 | bool force_resend = false; |
| 1261 | bool need_check_tiering = false; |
| 1262 | bool need_resend = false; |
| 1263 | bool sort_bitwise = ceph_osdmap_flag(osdc->osdmap, |
| 1264 | CEPH_OSDMAP_SORTBITWISE); |
| 1265 | enum calc_target_result ct_res; |
| 1266 | int ret; |
| 1267 | |
| 1268 | pi = ceph_pg_pool_by_id(osdc->osdmap, t->base_oloc.pool); |
| 1269 | if (!pi) { |
| 1270 | t->osd = CEPH_HOMELESS_OSD; |
| 1271 | ct_res = CALC_TARGET_POOL_DNE; |
| 1272 | goto out; |
| 1273 | } |
| 1274 | |
| 1275 | if (osdc->osdmap->epoch == pi->last_force_request_resend) { |
| 1276 | if (last_force_resend && |
| 1277 | *last_force_resend < pi->last_force_request_resend) { |
| 1278 | *last_force_resend = pi->last_force_request_resend; |
| 1279 | force_resend = true; |
| 1280 | } else if (!last_force_resend) { |
| 1281 | force_resend = true; |
| 1282 | } |
| 1283 | } |
| 1284 | if (ceph_oid_empty(&t->target_oid) || force_resend) { |
| 1285 | ceph_oid_copy(&t->target_oid, &t->base_oid); |
| 1286 | need_check_tiering = true; |
| 1287 | } |
| 1288 | if (ceph_oloc_empty(&t->target_oloc) || force_resend) { |
| 1289 | ceph_oloc_copy(&t->target_oloc, &t->base_oloc); |
| 1290 | need_check_tiering = true; |
| 1291 | } |
| 1292 | |
| 1293 | if (need_check_tiering && |
| 1294 | (t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) { |
| 1295 | if (t->flags & CEPH_OSD_FLAG_READ && pi->read_tier >= 0) |
| 1296 | t->target_oloc.pool = pi->read_tier; |
| 1297 | if (t->flags & CEPH_OSD_FLAG_WRITE && pi->write_tier >= 0) |
| 1298 | t->target_oloc.pool = pi->write_tier; |
| 1299 | } |
| 1300 | |
| 1301 | ret = ceph_object_locator_to_pg(osdc->osdmap, &t->target_oid, |
| 1302 | &t->target_oloc, &pgid); |
| 1303 | if (ret) { |
| 1304 | WARN_ON(ret != -ENOENT); |
| 1305 | t->osd = CEPH_HOMELESS_OSD; |
| 1306 | ct_res = CALC_TARGET_POOL_DNE; |
| 1307 | goto out; |
| 1308 | } |
| 1309 | last_pgid.pool = pgid.pool; |
| 1310 | last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); |
| 1311 | |
| 1312 | ceph_pg_to_up_acting_osds(osdc->osdmap, &pgid, &up, &acting); |
| 1313 | if (any_change && |
| 1314 | ceph_is_new_interval(&t->acting, |
| 1315 | &acting, |
| 1316 | &t->up, |
| 1317 | &up, |
| 1318 | t->size, |
| 1319 | pi->size, |
| 1320 | t->min_size, |
| 1321 | pi->min_size, |
| 1322 | t->pg_num, |
| 1323 | pi->pg_num, |
| 1324 | t->sort_bitwise, |
| 1325 | sort_bitwise, |
| 1326 | &last_pgid)) |
| 1327 | force_resend = true; |
| 1328 | |
| 1329 | if (t->paused && !target_should_be_paused(osdc, t, pi)) { |
| 1330 | t->paused = false; |
| 1331 | need_resend = true; |
| 1332 | } |
| 1333 | |
| 1334 | if (ceph_pg_compare(&t->pgid, &pgid) || |
| 1335 | ceph_osds_changed(&t->acting, &acting, any_change) || |
| 1336 | force_resend) { |
| 1337 | t->pgid = pgid; /* struct */ |
| 1338 | ceph_osds_copy(&t->acting, &acting); |
| 1339 | ceph_osds_copy(&t->up, &up); |
| 1340 | t->size = pi->size; |
| 1341 | t->min_size = pi->min_size; |
| 1342 | t->pg_num = pi->pg_num; |
| 1343 | t->pg_num_mask = pi->pg_num_mask; |
| 1344 | t->sort_bitwise = sort_bitwise; |
| 1345 | |
| 1346 | t->osd = acting.primary; |
| 1347 | need_resend = true; |
| 1348 | } |
| 1349 | |
| 1350 | ct_res = need_resend ? CALC_TARGET_NEED_RESEND : CALC_TARGET_NO_ACTION; |
| 1351 | out: |
| 1352 | dout("%s t %p -> ct_res %d osd %d\n", __func__, t, ct_res, t->osd); |
| 1353 | return ct_res; |
| 1354 | } |
| 1355 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1356 | static void setup_request_data(struct ceph_osd_request *req, |
| 1357 | struct ceph_msg *msg) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1358 | { |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1359 | u32 data_len = 0; |
| 1360 | int i; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1361 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1362 | if (!list_empty(&msg->data)) |
| 1363 | return; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1364 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1365 | WARN_ON(msg->data_length); |
| 1366 | for (i = 0; i < req->r_num_ops; i++) { |
| 1367 | struct ceph_osd_req_op *op = &req->r_ops[i]; |
| 1368 | |
| 1369 | switch (op->op) { |
| 1370 | /* request */ |
| 1371 | case CEPH_OSD_OP_WRITE: |
| 1372 | case CEPH_OSD_OP_WRITEFULL: |
| 1373 | WARN_ON(op->indata_len != op->extent.length); |
| 1374 | ceph_osdc_msg_data_add(msg, &op->extent.osd_data); |
| 1375 | break; |
| 1376 | case CEPH_OSD_OP_SETXATTR: |
| 1377 | case CEPH_OSD_OP_CMPXATTR: |
| 1378 | WARN_ON(op->indata_len != op->xattr.name_len + |
| 1379 | op->xattr.value_len); |
| 1380 | ceph_osdc_msg_data_add(msg, &op->xattr.osd_data); |
| 1381 | break; |
| 1382 | |
| 1383 | /* reply */ |
| 1384 | case CEPH_OSD_OP_STAT: |
| 1385 | ceph_osdc_msg_data_add(req->r_reply, |
| 1386 | &op->raw_data_in); |
| 1387 | break; |
| 1388 | case CEPH_OSD_OP_READ: |
| 1389 | ceph_osdc_msg_data_add(req->r_reply, |
| 1390 | &op->extent.osd_data); |
| 1391 | break; |
| 1392 | |
| 1393 | /* both */ |
| 1394 | case CEPH_OSD_OP_CALL: |
| 1395 | WARN_ON(op->indata_len != op->cls.class_len + |
| 1396 | op->cls.method_len + |
| 1397 | op->cls.indata_len); |
| 1398 | ceph_osdc_msg_data_add(msg, &op->cls.request_info); |
| 1399 | /* optional, can be NONE */ |
| 1400 | ceph_osdc_msg_data_add(msg, &op->cls.request_data); |
| 1401 | /* optional, can be NONE */ |
| 1402 | ceph_osdc_msg_data_add(req->r_reply, |
| 1403 | &op->cls.response_data); |
| 1404 | break; |
| 1405 | } |
| 1406 | |
| 1407 | data_len += op->indata_len; |
| 1408 | } |
| 1409 | |
| 1410 | WARN_ON(data_len != msg->data_length); |
| 1411 | } |
| 1412 | |
| 1413 | static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg) |
| 1414 | { |
| 1415 | void *p = msg->front.iov_base; |
| 1416 | void *const end = p + msg->front_alloc_len; |
| 1417 | u32 data_len = 0; |
| 1418 | int i; |
| 1419 | |
| 1420 | if (req->r_flags & CEPH_OSD_FLAG_WRITE) { |
| 1421 | /* snapshots aren't writeable */ |
| 1422 | WARN_ON(req->r_snapid != CEPH_NOSNAP); |
| 1423 | } else { |
| 1424 | WARN_ON(req->r_mtime.tv_sec || req->r_mtime.tv_nsec || |
| 1425 | req->r_data_offset || req->r_snapc); |
| 1426 | } |
| 1427 | |
| 1428 | setup_request_data(req, msg); |
| 1429 | |
| 1430 | ceph_encode_32(&p, 1); /* client_inc, always 1 */ |
| 1431 | ceph_encode_32(&p, req->r_osdc->osdmap->epoch); |
| 1432 | ceph_encode_32(&p, req->r_flags); |
| 1433 | ceph_encode_timespec(p, &req->r_mtime); |
| 1434 | p += sizeof(struct ceph_timespec); |
| 1435 | /* aka reassert_version */ |
| 1436 | memcpy(p, &req->r_replay_version, sizeof(req->r_replay_version)); |
| 1437 | p += sizeof(req->r_replay_version); |
| 1438 | |
| 1439 | /* oloc */ |
| 1440 | ceph_encode_8(&p, 4); |
| 1441 | ceph_encode_8(&p, 4); |
| 1442 | ceph_encode_32(&p, 8 + 4 + 4); |
| 1443 | ceph_encode_64(&p, req->r_t.target_oloc.pool); |
| 1444 | ceph_encode_32(&p, -1); /* preferred */ |
| 1445 | ceph_encode_32(&p, 0); /* key len */ |
| 1446 | |
| 1447 | /* pgid */ |
| 1448 | ceph_encode_8(&p, 1); |
Ilya Dryomov | a66dd38 | 2016-04-28 16:07:23 +0200 | [diff] [blame] | 1449 | ceph_encode_64(&p, req->r_t.pgid.pool); |
| 1450 | ceph_encode_32(&p, req->r_t.pgid.seed); |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1451 | ceph_encode_32(&p, -1); /* preferred */ |
Sage Weil | 2169aea | 2013-02-25 16:13:08 -0800 | [diff] [blame] | 1452 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1453 | /* oid */ |
| 1454 | ceph_encode_32(&p, req->r_t.target_oid.name_len); |
| 1455 | memcpy(p, req->r_t.target_oid.name, req->r_t.target_oid.name_len); |
| 1456 | p += req->r_t.target_oid.name_len; |
| 1457 | |
| 1458 | /* ops, can imply data */ |
| 1459 | ceph_encode_16(&p, req->r_num_ops); |
| 1460 | for (i = 0; i < req->r_num_ops; i++) { |
| 1461 | data_len += osd_req_encode_op(p, &req->r_ops[i]); |
| 1462 | p += sizeof(struct ceph_osd_op); |
| 1463 | } |
| 1464 | |
| 1465 | ceph_encode_64(&p, req->r_snapid); /* snapid */ |
| 1466 | if (req->r_snapc) { |
| 1467 | ceph_encode_64(&p, req->r_snapc->seq); |
| 1468 | ceph_encode_32(&p, req->r_snapc->num_snaps); |
| 1469 | for (i = 0; i < req->r_snapc->num_snaps; i++) |
| 1470 | ceph_encode_64(&p, req->r_snapc->snaps[i]); |
| 1471 | } else { |
| 1472 | ceph_encode_64(&p, 0); /* snap_seq */ |
| 1473 | ceph_encode_32(&p, 0); /* snaps len */ |
| 1474 | } |
| 1475 | |
| 1476 | ceph_encode_32(&p, req->r_attempts); /* retry_attempt */ |
| 1477 | |
| 1478 | BUG_ON(p > end); |
| 1479 | msg->front.iov_len = p - msg->front.iov_base; |
| 1480 | msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */ |
| 1481 | msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); |
| 1482 | msg->hdr.data_len = cpu_to_le32(data_len); |
| 1483 | /* |
| 1484 | * The header "data_off" is a hint to the receiver allowing it |
| 1485 | * to align received data into its buffers such that there's no |
| 1486 | * need to re-copy it before writing it to disk (direct I/O). |
| 1487 | */ |
| 1488 | msg->hdr.data_off = cpu_to_le16(req->r_data_offset); |
| 1489 | |
| 1490 | dout("%s req %p oid %*pE oid_len %d front %zu data %u\n", __func__, |
| 1491 | req, req->r_t.target_oid.name_len, req->r_t.target_oid.name, |
| 1492 | req->r_t.target_oid.name_len, msg->front.iov_len, data_len); |
| 1493 | } |
| 1494 | |
| 1495 | /* |
| 1496 | * @req has to be assigned a tid and registered. |
| 1497 | */ |
| 1498 | static void send_request(struct ceph_osd_request *req) |
| 1499 | { |
| 1500 | struct ceph_osd *osd = req->r_osd; |
| 1501 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1502 | verify_osd_locked(osd); |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1503 | WARN_ON(osd->o_osd != req->r_t.osd); |
| 1504 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1505 | /* |
| 1506 | * We may have a previously queued request message hanging |
| 1507 | * around. Cancel it to avoid corrupting the msgr. |
| 1508 | */ |
| 1509 | if (req->r_sent) |
| 1510 | ceph_msg_revoke(req->r_request); |
| 1511 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1512 | req->r_flags |= CEPH_OSD_FLAG_KNOWN_REDIR; |
| 1513 | if (req->r_attempts) |
| 1514 | req->r_flags |= CEPH_OSD_FLAG_RETRY; |
| 1515 | else |
| 1516 | WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY); |
| 1517 | |
| 1518 | encode_request(req, req->r_request); |
| 1519 | |
| 1520 | dout("%s req %p tid %llu to pg %llu.%x osd%d flags 0x%x attempt %d\n", |
| 1521 | __func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, |
| 1522 | req->r_t.osd, req->r_flags, req->r_attempts); |
| 1523 | |
| 1524 | req->r_t.paused = false; |
Sage Weil | 3dd72fc | 2010-03-22 14:42:30 -0700 | [diff] [blame] | 1525 | req->r_stamp = jiffies; |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1526 | req->r_attempts++; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1527 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 1528 | req->r_sent = osd->o_incarnation; |
| 1529 | req->r_request->hdr.tid = cpu_to_le64(req->r_tid); |
| 1530 | ceph_con_send(&osd->o_con, ceph_msg_get(req->r_request)); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1531 | } |
| 1532 | |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 1533 | static void maybe_request_map(struct ceph_osd_client *osdc) |
| 1534 | { |
| 1535 | bool continuous = false; |
| 1536 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1537 | verify_osdc_locked(osdc); |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 1538 | WARN_ON(!osdc->osdmap->epoch); |
| 1539 | |
| 1540 | if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || |
| 1541 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD) || |
| 1542 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { |
| 1543 | dout("%s osdc %p continuous\n", __func__, osdc); |
| 1544 | continuous = true; |
| 1545 | } else { |
| 1546 | dout("%s osdc %p onetime\n", __func__, osdc); |
| 1547 | } |
| 1548 | |
| 1549 | if (ceph_monc_want_map(&osdc->client->monc, CEPH_SUB_OSDMAP, |
| 1550 | osdc->osdmap->epoch + 1, continuous)) |
| 1551 | ceph_monc_renew_subs(&osdc->client->monc); |
| 1552 | } |
| 1553 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1554 | static void __submit_request(struct ceph_osd_request *req, bool wrlocked) |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1555 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1556 | struct ceph_osd_client *osdc = req->r_osdc; |
| 1557 | struct ceph_osd *osd; |
| 1558 | bool need_send = false; |
| 1559 | bool promoted = false; |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1560 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1561 | WARN_ON(req->r_tid || req->r_got_reply); |
| 1562 | dout("%s req %p wrlocked %d\n", __func__, req, wrlocked); |
| 1563 | |
| 1564 | again: |
| 1565 | calc_target(osdc, &req->r_t, &req->r_last_force_resend, false); |
| 1566 | osd = lookup_create_osd(osdc, req->r_t.osd, wrlocked); |
| 1567 | if (IS_ERR(osd)) { |
| 1568 | WARN_ON(PTR_ERR(osd) != -EAGAIN || wrlocked); |
| 1569 | goto promote; |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1570 | } |
| 1571 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1572 | if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && |
| 1573 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { |
| 1574 | dout("req %p pausewr\n", req); |
| 1575 | req->r_t.paused = true; |
| 1576 | maybe_request_map(osdc); |
| 1577 | } else if ((req->r_flags & CEPH_OSD_FLAG_READ) && |
| 1578 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD)) { |
| 1579 | dout("req %p pauserd\n", req); |
| 1580 | req->r_t.paused = true; |
| 1581 | maybe_request_map(osdc); |
| 1582 | } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && |
| 1583 | !(req->r_flags & (CEPH_OSD_FLAG_FULL_TRY | |
| 1584 | CEPH_OSD_FLAG_FULL_FORCE)) && |
| 1585 | (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || |
| 1586 | pool_full(osdc, req->r_t.base_oloc.pool))) { |
| 1587 | dout("req %p full/pool_full\n", req); |
| 1588 | pr_warn_ratelimited("FULL or reached pool quota\n"); |
| 1589 | req->r_t.paused = true; |
| 1590 | maybe_request_map(osdc); |
| 1591 | } else if (!osd_homeless(osd)) { |
| 1592 | need_send = true; |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1593 | } else { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1594 | maybe_request_map(osdc); |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1595 | } |
| 1596 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1597 | mutex_lock(&osd->lock); |
| 1598 | /* |
| 1599 | * Assign the tid atomically with send_request() to protect |
| 1600 | * multiple writes to the same object from racing with each |
| 1601 | * other, resulting in out of order ops on the OSDs. |
| 1602 | */ |
| 1603 | req->r_tid = atomic64_inc_return(&osdc->last_tid); |
| 1604 | link_request(osd, req); |
| 1605 | if (need_send) |
| 1606 | send_request(req); |
| 1607 | mutex_unlock(&osd->lock); |
| 1608 | |
| 1609 | if (promoted) |
| 1610 | downgrade_write(&osdc->lock); |
| 1611 | return; |
| 1612 | |
| 1613 | promote: |
| 1614 | up_read(&osdc->lock); |
| 1615 | down_write(&osdc->lock); |
| 1616 | wrlocked = true; |
| 1617 | promoted = true; |
| 1618 | goto again; |
| 1619 | } |
| 1620 | |
| 1621 | static void account_request(struct ceph_osd_request *req) |
| 1622 | { |
| 1623 | unsigned int mask = CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK; |
| 1624 | |
| 1625 | if (req->r_flags & CEPH_OSD_FLAG_READ) { |
| 1626 | WARN_ON(req->r_flags & mask); |
| 1627 | req->r_flags |= CEPH_OSD_FLAG_ACK; |
| 1628 | } else if (req->r_flags & CEPH_OSD_FLAG_WRITE) |
| 1629 | WARN_ON(!(req->r_flags & mask)); |
| 1630 | else |
| 1631 | WARN_ON(1); |
| 1632 | |
| 1633 | WARN_ON(req->r_unsafe_callback && (req->r_flags & mask) != mask); |
| 1634 | atomic_inc(&req->r_osdc->num_requests); |
| 1635 | } |
| 1636 | |
| 1637 | static void submit_request(struct ceph_osd_request *req, bool wrlocked) |
| 1638 | { |
| 1639 | ceph_osdc_get_request(req); |
| 1640 | account_request(req); |
| 1641 | __submit_request(req, wrlocked); |
| 1642 | } |
| 1643 | |
| 1644 | static void __finish_request(struct ceph_osd_request *req) |
| 1645 | { |
| 1646 | struct ceph_osd_client *osdc = req->r_osdc; |
| 1647 | struct ceph_osd *osd = req->r_osd; |
| 1648 | |
| 1649 | verify_osd_locked(osd); |
| 1650 | dout("%s req %p tid %llu\n", __func__, req, req->r_tid); |
| 1651 | |
| 1652 | unlink_request(osd, req); |
| 1653 | atomic_dec(&osdc->num_requests); |
| 1654 | |
| 1655 | /* |
| 1656 | * If an OSD has failed or returned and a request has been sent |
| 1657 | * twice, it's possible to get a reply and end up here while the |
| 1658 | * request message is queued for delivery. We will ignore the |
| 1659 | * reply, so not a big deal, but better to try and catch it. |
| 1660 | */ |
| 1661 | ceph_msg_revoke(req->r_request); |
| 1662 | ceph_msg_revoke_incoming(req->r_reply); |
| 1663 | } |
| 1664 | |
| 1665 | static void finish_request(struct ceph_osd_request *req) |
| 1666 | { |
| 1667 | __finish_request(req); |
| 1668 | ceph_osdc_put_request(req); |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1669 | } |
| 1670 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1671 | static void __complete_request(struct ceph_osd_request *req) |
| 1672 | { |
| 1673 | if (req->r_callback) |
| 1674 | req->r_callback(req); |
| 1675 | else |
| 1676 | complete_all(&req->r_completion); |
| 1677 | } |
| 1678 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1679 | static void cancel_request(struct ceph_osd_request *req) |
| 1680 | { |
| 1681 | dout("%s req %p tid %llu\n", __func__, req, req->r_tid); |
| 1682 | |
| 1683 | finish_request(req); |
| 1684 | } |
| 1685 | |
Ilya Dryomov | 0bbfdfe | 2014-01-31 19:33:39 +0200 | [diff] [blame] | 1686 | /* |
Ilya Dryomov | fbca963 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1687 | * Timeout callback, called every N seconds. When 1 or more OSD |
| 1688 | * requests has been active for more than N seconds, we send a keepalive |
| 1689 | * (tag + timestamp) to its OSD to ensure any communications channel |
| 1690 | * reset is detected. |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1691 | */ |
| 1692 | static void handle_timeout(struct work_struct *work) |
| 1693 | { |
| 1694 | struct ceph_osd_client *osdc = |
| 1695 | container_of(work, struct ceph_osd_client, timeout_work.work); |
Ilya Dryomov | a319bf5 | 2015-05-15 12:02:17 +0300 | [diff] [blame] | 1696 | struct ceph_options *opts = osdc->client->options; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1697 | unsigned long cutoff = jiffies - opts->osd_keepalive_timeout; |
| 1698 | LIST_HEAD(slow_osds); |
| 1699 | struct rb_node *n, *p; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1700 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1701 | dout("%s osdc %p\n", __func__, osdc); |
| 1702 | down_write(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1703 | |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 1704 | /* |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 1705 | * ping osds that are a bit slow. this ensures that if there |
| 1706 | * is a break in the TCP connection we will notice, and reopen |
| 1707 | * a connection with that osd (from the fault callback). |
| 1708 | */ |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1709 | for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { |
| 1710 | struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); |
| 1711 | bool found = false; |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 1712 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1713 | for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { |
| 1714 | struct ceph_osd_request *req = |
| 1715 | rb_entry(p, struct ceph_osd_request, r_node); |
| 1716 | |
| 1717 | if (time_before(req->r_stamp, cutoff)) { |
| 1718 | dout(" req %p tid %llu on osd%d is laggy\n", |
| 1719 | req, req->r_tid, osd->o_osd); |
| 1720 | found = true; |
| 1721 | } |
| 1722 | } |
| 1723 | |
| 1724 | if (found) |
| 1725 | list_move_tail(&osd->o_keepalive_item, &slow_osds); |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 1726 | } |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1727 | |
| 1728 | if (atomic_read(&osdc->num_homeless) || !list_empty(&slow_osds)) |
| 1729 | maybe_request_map(osdc); |
| 1730 | |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 1731 | while (!list_empty(&slow_osds)) { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1732 | struct ceph_osd *osd = list_first_entry(&slow_osds, |
| 1733 | struct ceph_osd, |
| 1734 | o_keepalive_item); |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 1735 | list_del_init(&osd->o_keepalive_item); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1736 | ceph_con_keepalive(&osd->o_con); |
| 1737 | } |
| 1738 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1739 | up_write(&osdc->lock); |
Ilya Dryomov | fbca963 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1740 | schedule_delayed_work(&osdc->timeout_work, |
| 1741 | osdc->client->options->osd_keepalive_timeout); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1742 | } |
| 1743 | |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 1744 | static void handle_osds_timeout(struct work_struct *work) |
| 1745 | { |
| 1746 | struct ceph_osd_client *osdc = |
| 1747 | container_of(work, struct ceph_osd_client, |
| 1748 | osds_timeout_work.work); |
Ilya Dryomov | a319bf5 | 2015-05-15 12:02:17 +0300 | [diff] [blame] | 1749 | unsigned long delay = osdc->client->options->osd_idle_ttl / 4; |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 1750 | struct ceph_osd *osd, *nosd; |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 1751 | |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 1752 | dout("%s osdc %p\n", __func__, osdc); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1753 | down_write(&osdc->lock); |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 1754 | list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { |
| 1755 | if (time_before(jiffies, osd->lru_ttl)) |
| 1756 | break; |
| 1757 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1758 | WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); |
| 1759 | WARN_ON(!list_empty(&osd->o_linger_requests)); |
| 1760 | close_osd(osd); |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 1761 | } |
| 1762 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1763 | up_write(&osdc->lock); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 1764 | schedule_delayed_work(&osdc->osds_timeout_work, |
| 1765 | round_jiffies_relative(delay)); |
| 1766 | } |
| 1767 | |
Ilya Dryomov | 205ee118 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 1768 | static int ceph_oloc_decode(void **p, void *end, |
| 1769 | struct ceph_object_locator *oloc) |
| 1770 | { |
| 1771 | u8 struct_v, struct_cv; |
| 1772 | u32 len; |
| 1773 | void *struct_end; |
| 1774 | int ret = 0; |
| 1775 | |
| 1776 | ceph_decode_need(p, end, 1 + 1 + 4, e_inval); |
| 1777 | struct_v = ceph_decode_8(p); |
| 1778 | struct_cv = ceph_decode_8(p); |
| 1779 | if (struct_v < 3) { |
| 1780 | pr_warn("got v %d < 3 cv %d of ceph_object_locator\n", |
| 1781 | struct_v, struct_cv); |
| 1782 | goto e_inval; |
| 1783 | } |
| 1784 | if (struct_cv > 6) { |
| 1785 | pr_warn("got v %d cv %d > 6 of ceph_object_locator\n", |
| 1786 | struct_v, struct_cv); |
| 1787 | goto e_inval; |
| 1788 | } |
| 1789 | len = ceph_decode_32(p); |
| 1790 | ceph_decode_need(p, end, len, e_inval); |
| 1791 | struct_end = *p + len; |
| 1792 | |
| 1793 | oloc->pool = ceph_decode_64(p); |
| 1794 | *p += 4; /* skip preferred */ |
| 1795 | |
| 1796 | len = ceph_decode_32(p); |
| 1797 | if (len > 0) { |
| 1798 | pr_warn("ceph_object_locator::key is set\n"); |
| 1799 | goto e_inval; |
| 1800 | } |
| 1801 | |
| 1802 | if (struct_v >= 5) { |
| 1803 | len = ceph_decode_32(p); |
| 1804 | if (len > 0) { |
| 1805 | pr_warn("ceph_object_locator::nspace is set\n"); |
| 1806 | goto e_inval; |
| 1807 | } |
| 1808 | } |
| 1809 | |
| 1810 | if (struct_v >= 6) { |
| 1811 | s64 hash = ceph_decode_64(p); |
| 1812 | if (hash != -1) { |
| 1813 | pr_warn("ceph_object_locator::hash is set\n"); |
| 1814 | goto e_inval; |
| 1815 | } |
| 1816 | } |
| 1817 | |
| 1818 | /* skip the rest */ |
| 1819 | *p = struct_end; |
| 1820 | out: |
| 1821 | return ret; |
| 1822 | |
| 1823 | e_inval: |
| 1824 | ret = -EINVAL; |
| 1825 | goto out; |
| 1826 | } |
| 1827 | |
| 1828 | static int ceph_redirect_decode(void **p, void *end, |
| 1829 | struct ceph_request_redirect *redir) |
| 1830 | { |
| 1831 | u8 struct_v, struct_cv; |
| 1832 | u32 len; |
| 1833 | void *struct_end; |
| 1834 | int ret; |
| 1835 | |
| 1836 | ceph_decode_need(p, end, 1 + 1 + 4, e_inval); |
| 1837 | struct_v = ceph_decode_8(p); |
| 1838 | struct_cv = ceph_decode_8(p); |
| 1839 | if (struct_cv > 1) { |
| 1840 | pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n", |
| 1841 | struct_v, struct_cv); |
| 1842 | goto e_inval; |
| 1843 | } |
| 1844 | len = ceph_decode_32(p); |
| 1845 | ceph_decode_need(p, end, len, e_inval); |
| 1846 | struct_end = *p + len; |
| 1847 | |
| 1848 | ret = ceph_oloc_decode(p, end, &redir->oloc); |
| 1849 | if (ret) |
| 1850 | goto out; |
| 1851 | |
| 1852 | len = ceph_decode_32(p); |
| 1853 | if (len > 0) { |
| 1854 | pr_warn("ceph_request_redirect::object_name is set\n"); |
| 1855 | goto e_inval; |
| 1856 | } |
| 1857 | |
| 1858 | len = ceph_decode_32(p); |
| 1859 | *p += len; /* skip osd_instructions */ |
| 1860 | |
| 1861 | /* skip the rest */ |
| 1862 | *p = struct_end; |
| 1863 | out: |
| 1864 | return ret; |
| 1865 | |
| 1866 | e_inval: |
| 1867 | ret = -EINVAL; |
| 1868 | goto out; |
| 1869 | } |
| 1870 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1871 | struct MOSDOpReply { |
| 1872 | struct ceph_pg pgid; |
| 1873 | u64 flags; |
| 1874 | int result; |
| 1875 | u32 epoch; |
| 1876 | int num_ops; |
| 1877 | u32 outdata_len[CEPH_OSD_MAX_OPS]; |
| 1878 | s32 rval[CEPH_OSD_MAX_OPS]; |
| 1879 | int retry_attempt; |
| 1880 | struct ceph_eversion replay_version; |
| 1881 | u64 user_version; |
| 1882 | struct ceph_request_redirect redirect; |
| 1883 | }; |
Sage Weil | 2584547 | 2011-06-03 09:37:09 -0700 | [diff] [blame] | 1884 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1885 | static int decode_MOSDOpReply(const struct ceph_msg *msg, struct MOSDOpReply *m) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1886 | { |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1887 | void *p = msg->front.iov_base; |
| 1888 | void *const end = p + msg->front.iov_len; |
| 1889 | u16 version = le16_to_cpu(msg->hdr.version); |
| 1890 | struct ceph_eversion bad_replay_version; |
Ilya Dryomov | b0b31a8 | 2016-02-03 15:25:48 +0100 | [diff] [blame] | 1891 | u8 decode_redir; |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1892 | u32 len; |
| 1893 | int ret; |
| 1894 | int i; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 1895 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1896 | ceph_decode_32_safe(&p, end, len, e_inval); |
| 1897 | ceph_decode_need(&p, end, len, e_inval); |
| 1898 | p += len; /* skip oid */ |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1899 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1900 | ret = ceph_decode_pgid(&p, end, &m->pgid); |
| 1901 | if (ret) |
| 1902 | return ret; |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1903 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1904 | ceph_decode_64_safe(&p, end, m->flags, e_inval); |
| 1905 | ceph_decode_32_safe(&p, end, m->result, e_inval); |
| 1906 | ceph_decode_need(&p, end, sizeof(bad_replay_version), e_inval); |
| 1907 | memcpy(&bad_replay_version, p, sizeof(bad_replay_version)); |
| 1908 | p += sizeof(bad_replay_version); |
| 1909 | ceph_decode_32_safe(&p, end, m->epoch, e_inval); |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1910 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1911 | ceph_decode_32_safe(&p, end, m->num_ops, e_inval); |
| 1912 | if (m->num_ops > ARRAY_SIZE(m->outdata_len)) |
| 1913 | goto e_inval; |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1914 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1915 | ceph_decode_need(&p, end, m->num_ops * sizeof(struct ceph_osd_op), |
| 1916 | e_inval); |
| 1917 | for (i = 0; i < m->num_ops; i++) { |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1918 | struct ceph_osd_op *op = p; |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1919 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1920 | m->outdata_len[i] = le32_to_cpu(op->payload_len); |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1921 | p += sizeof(*op); |
| 1922 | } |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1923 | |
| 1924 | ceph_decode_32_safe(&p, end, m->retry_attempt, e_inval); |
| 1925 | for (i = 0; i < m->num_ops; i++) |
| 1926 | ceph_decode_32_safe(&p, end, m->rval[i], e_inval); |
| 1927 | |
| 1928 | if (version >= 5) { |
| 1929 | ceph_decode_need(&p, end, sizeof(m->replay_version), e_inval); |
| 1930 | memcpy(&m->replay_version, p, sizeof(m->replay_version)); |
| 1931 | p += sizeof(m->replay_version); |
| 1932 | ceph_decode_64_safe(&p, end, m->user_version, e_inval); |
| 1933 | } else { |
| 1934 | m->replay_version = bad_replay_version; /* struct */ |
| 1935 | m->user_version = le64_to_cpu(m->replay_version.version); |
Sage Weil | 1b83bef | 2013-02-25 16:11:12 -0800 | [diff] [blame] | 1936 | } |
| 1937 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1938 | if (version >= 6) { |
| 1939 | if (version >= 7) |
| 1940 | ceph_decode_8_safe(&p, end, decode_redir, e_inval); |
Ilya Dryomov | b0b31a8 | 2016-02-03 15:25:48 +0100 | [diff] [blame] | 1941 | else |
| 1942 | decode_redir = 1; |
| 1943 | } else { |
| 1944 | decode_redir = 0; |
| 1945 | } |
| 1946 | |
| 1947 | if (decode_redir) { |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1948 | ret = ceph_redirect_decode(&p, end, &m->redirect); |
| 1949 | if (ret) |
| 1950 | return ret; |
Ilya Dryomov | 205ee118 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 1951 | } else { |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1952 | ceph_oloc_init(&m->redirect.oloc); |
Ilya Dryomov | 205ee118 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 1953 | } |
| 1954 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1955 | return 0; |
Ilya Dryomov | 205ee118 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 1956 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1957 | e_inval: |
| 1958 | return -EINVAL; |
| 1959 | } |
| 1960 | |
| 1961 | /* |
| 1962 | * We are done with @req if |
| 1963 | * - @m is a safe reply, or |
| 1964 | * - @m is an unsafe reply and we didn't want a safe one |
| 1965 | */ |
| 1966 | static bool done_request(const struct ceph_osd_request *req, |
| 1967 | const struct MOSDOpReply *m) |
| 1968 | { |
| 1969 | return (m->result < 0 || |
| 1970 | (m->flags & CEPH_OSD_FLAG_ONDISK) || |
| 1971 | !(req->r_flags & CEPH_OSD_FLAG_ONDISK)); |
| 1972 | } |
| 1973 | |
| 1974 | /* |
| 1975 | * handle osd op reply. either call the callback if it is specified, |
| 1976 | * or do the completion to wake up the waiting thread. |
| 1977 | * |
| 1978 | * ->r_unsafe_callback is set? yes no |
| 1979 | * |
| 1980 | * first reply is OK (needed r_cb/r_completion, r_cb/r_completion, |
| 1981 | * any or needed/got safe) r_safe_completion r_safe_completion |
| 1982 | * |
| 1983 | * first reply is unsafe r_unsafe_cb(true) (nothing) |
| 1984 | * |
| 1985 | * when we get the safe reply r_unsafe_cb(false), r_cb/r_completion, |
| 1986 | * r_safe_completion r_safe_completion |
| 1987 | */ |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1988 | static void handle_reply(struct ceph_osd *osd, struct ceph_msg *msg) |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1989 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 1990 | struct ceph_osd_client *osdc = osd->o_osdc; |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 1991 | struct ceph_osd_request *req; |
| 1992 | struct MOSDOpReply m; |
| 1993 | u64 tid = le64_to_cpu(msg->hdr.tid); |
| 1994 | u32 data_len = 0; |
| 1995 | bool already_acked; |
| 1996 | int ret; |
| 1997 | int i; |
| 1998 | |
| 1999 | dout("%s msg %p tid %llu\n", __func__, msg, tid); |
| 2000 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2001 | down_read(&osdc->lock); |
| 2002 | if (!osd_registered(osd)) { |
| 2003 | dout("%s osd%d unknown\n", __func__, osd->o_osd); |
| 2004 | goto out_unlock_osdc; |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2005 | } |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2006 | WARN_ON(osd->o_osd != le64_to_cpu(msg->hdr.src.num)); |
| 2007 | |
| 2008 | mutex_lock(&osd->lock); |
| 2009 | req = lookup_request(&osd->o_requests, tid); |
| 2010 | if (!req) { |
| 2011 | dout("%s osd%d tid %llu unknown\n", __func__, osd->o_osd, tid); |
| 2012 | goto out_unlock_session; |
| 2013 | } |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2014 | |
| 2015 | ret = decode_MOSDOpReply(msg, &m); |
| 2016 | if (ret) { |
| 2017 | pr_err("failed to decode MOSDOpReply for tid %llu: %d\n", |
| 2018 | req->r_tid, ret); |
| 2019 | ceph_msg_dump(msg); |
| 2020 | goto fail_request; |
| 2021 | } |
| 2022 | dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n", |
| 2023 | __func__, req, req->r_tid, m.flags, m.pgid.pool, m.pgid.seed, |
| 2024 | m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch), |
| 2025 | le64_to_cpu(m.replay_version.version), m.user_version); |
| 2026 | |
| 2027 | if (m.retry_attempt >= 0) { |
| 2028 | if (m.retry_attempt != req->r_attempts - 1) { |
| 2029 | dout("req %p tid %llu retry_attempt %d != %d, ignoring\n", |
| 2030 | req, req->r_tid, m.retry_attempt, |
| 2031 | req->r_attempts - 1); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2032 | goto out_unlock_session; |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2033 | } |
| 2034 | } else { |
| 2035 | WARN_ON(1); /* MOSDOpReply v4 is assumed */ |
| 2036 | } |
| 2037 | |
| 2038 | if (!ceph_oloc_empty(&m.redirect.oloc)) { |
| 2039 | dout("req %p tid %llu redirect pool %lld\n", req, req->r_tid, |
| 2040 | m.redirect.oloc.pool); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2041 | unlink_request(osd, req); |
| 2042 | mutex_unlock(&osd->lock); |
Ilya Dryomov | 205ee118 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 2043 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2044 | ceph_oloc_copy(&req->r_t.target_oloc, &m.redirect.oloc); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2045 | req->r_flags |= CEPH_OSD_FLAG_REDIRECTED; |
| 2046 | req->r_tid = 0; |
| 2047 | __submit_request(req, false); |
| 2048 | goto out_unlock_osdc; |
Ilya Dryomov | 205ee118 | 2014-01-27 17:40:20 +0200 | [diff] [blame] | 2049 | } |
| 2050 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2051 | if (m.num_ops != req->r_num_ops) { |
| 2052 | pr_err("num_ops %d != %d for tid %llu\n", m.num_ops, |
| 2053 | req->r_num_ops, req->r_tid); |
| 2054 | goto fail_request; |
| 2055 | } |
| 2056 | for (i = 0; i < req->r_num_ops; i++) { |
| 2057 | dout(" req %p tid %llu op %d rval %d len %u\n", req, |
| 2058 | req->r_tid, i, m.rval[i], m.outdata_len[i]); |
| 2059 | req->r_ops[i].rval = m.rval[i]; |
| 2060 | req->r_ops[i].outdata_len = m.outdata_len[i]; |
| 2061 | data_len += m.outdata_len[i]; |
| 2062 | } |
| 2063 | if (data_len != le32_to_cpu(msg->hdr.data_len)) { |
| 2064 | pr_err("sum of lens %u != %u for tid %llu\n", data_len, |
| 2065 | le32_to_cpu(msg->hdr.data_len), req->r_tid); |
| 2066 | goto fail_request; |
| 2067 | } |
| 2068 | dout("%s req %p tid %llu acked %d result %d data_len %u\n", __func__, |
| 2069 | req, req->r_tid, req->r_got_reply, m.result, data_len); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2070 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2071 | already_acked = req->r_got_reply; |
| 2072 | if (!already_acked) { |
| 2073 | req->r_result = m.result ?: data_len; |
| 2074 | req->r_replay_version = m.replay_version; /* struct */ |
| 2075 | req->r_got_reply = true; |
| 2076 | } else if (!(m.flags & CEPH_OSD_FLAG_ONDISK)) { |
| 2077 | dout("req %p tid %llu dup ack\n", req, req->r_tid); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2078 | goto out_unlock_session; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2079 | } |
| 2080 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2081 | if (done_request(req, &m)) { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2082 | __finish_request(req); |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2083 | if (req->r_linger) { |
| 2084 | WARN_ON(req->r_unsafe_callback); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2085 | __register_linger_request(osd, req); |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2086 | } |
| 2087 | } |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2088 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2089 | mutex_unlock(&osd->lock); |
| 2090 | up_read(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2091 | |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2092 | if (done_request(req, &m)) { |
| 2093 | if (already_acked && req->r_unsafe_callback) { |
| 2094 | dout("req %p tid %llu safe-cb\n", req, req->r_tid); |
Yan, Zheng | 61c5d6b | 2013-06-24 14:41:27 +0800 | [diff] [blame] | 2095 | req->r_unsafe_callback(req, false); |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2096 | } else { |
| 2097 | dout("req %p tid %llu cb\n", req, req->r_tid); |
| 2098 | __complete_request(req); |
| 2099 | } |
| 2100 | } else { |
| 2101 | if (req->r_unsafe_callback) { |
| 2102 | dout("req %p tid %llu unsafe-cb\n", req, req->r_tid); |
| 2103 | req->r_unsafe_callback(req, true); |
| 2104 | } else { |
| 2105 | WARN_ON(1); |
| 2106 | } |
Yan, Zheng | 61c5d6b | 2013-06-24 14:41:27 +0800 | [diff] [blame] | 2107 | } |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2108 | if (m.flags & CEPH_OSD_FLAG_ONDISK) |
| 2109 | complete_all(&req->r_safe_completion); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2110 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2111 | ceph_osdc_put_request(req); |
| 2112 | return; |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2113 | |
| 2114 | fail_request: |
| 2115 | req->r_result = -EIO; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2116 | __finish_request(req); |
Ilya Dryomov | fe5da05 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2117 | __complete_request(req); |
| 2118 | complete_all(&req->r_safe_completion); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2119 | out_unlock_session: |
| 2120 | mutex_unlock(&osd->lock); |
| 2121 | out_unlock_osdc: |
| 2122 | up_read(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2123 | } |
| 2124 | |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2125 | static void set_pool_was_full(struct ceph_osd_client *osdc) |
| 2126 | { |
| 2127 | struct rb_node *n; |
| 2128 | |
| 2129 | for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { |
| 2130 | struct ceph_pg_pool_info *pi = |
| 2131 | rb_entry(n, struct ceph_pg_pool_info, node); |
| 2132 | |
| 2133 | pi->was_full = __pool_full(pi); |
| 2134 | } |
| 2135 | } |
| 2136 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2137 | static bool pool_cleared_full(struct ceph_osd_client *osdc, s64 pool_id) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2138 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2139 | struct ceph_pg_pool_info *pi; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2140 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2141 | pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); |
| 2142 | if (!pi) |
| 2143 | return false; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2144 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2145 | return pi->was_full && !__pool_full(pi); |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 2146 | } |
| 2147 | |
| 2148 | /* |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2149 | * Requeue requests whose mapping to an OSD has changed. |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 2150 | */ |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2151 | static void scan_requests(struct ceph_osd *osd, |
| 2152 | bool force_resend, |
| 2153 | bool cleared_full, |
| 2154 | bool check_pool_cleared_full, |
| 2155 | struct rb_root *need_resend, |
| 2156 | struct list_head *need_resend_linger) |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 2157 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2158 | struct ceph_osd_client *osdc = osd->o_osdc; |
| 2159 | struct rb_node *n; |
| 2160 | bool force_resend_writes; |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 2161 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2162 | for (n = rb_first(&osd->o_requests); n; ) { |
| 2163 | struct ceph_osd_request *req = |
| 2164 | rb_entry(n, struct ceph_osd_request, r_node); |
| 2165 | enum calc_target_result ct_res; |
Alex Elder | ab60b16 | 2012-12-19 15:52:36 -0600 | [diff] [blame] | 2166 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2167 | n = rb_next(n); /* unlink_request() */ |
| 2168 | |
| 2169 | dout("%s req %p tid %llu\n", __func__, req, req->r_tid); |
| 2170 | ct_res = calc_target(osdc, &req->r_t, |
| 2171 | &req->r_last_force_resend, false); |
| 2172 | switch (ct_res) { |
| 2173 | case CALC_TARGET_NO_ACTION: |
| 2174 | force_resend_writes = cleared_full || |
| 2175 | (check_pool_cleared_full && |
| 2176 | pool_cleared_full(osdc, req->r_t.base_oloc.pool)); |
| 2177 | if (!force_resend && |
| 2178 | (!(req->r_flags & CEPH_OSD_FLAG_WRITE) || |
| 2179 | !force_resend_writes)) |
| 2180 | break; |
| 2181 | |
| 2182 | /* fall through */ |
| 2183 | case CALC_TARGET_NEED_RESEND: |
| 2184 | unlink_request(osd, req); |
| 2185 | insert_request(need_resend, req); |
| 2186 | break; |
| 2187 | case CALC_TARGET_POOL_DNE: |
| 2188 | break; |
Alex Elder | ab60b16 | 2012-12-19 15:52:36 -0600 | [diff] [blame] | 2189 | } |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2190 | } |
Yehuda Sadeh | 422d2cb | 2010-02-26 15:32:31 -0800 | [diff] [blame] | 2191 | } |
Sage Weil | 6f6c700 | 2011-01-17 20:34:08 -0800 | [diff] [blame] | 2192 | |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2193 | static int handle_one_map(struct ceph_osd_client *osdc, |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2194 | void *p, void *end, bool incremental, |
| 2195 | struct rb_root *need_resend, |
| 2196 | struct list_head *need_resend_linger) |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2197 | { |
| 2198 | struct ceph_osdmap *newmap; |
| 2199 | struct rb_node *n; |
| 2200 | bool skipped_map = false; |
| 2201 | bool was_full; |
| 2202 | |
| 2203 | was_full = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); |
| 2204 | set_pool_was_full(osdc); |
| 2205 | |
| 2206 | if (incremental) |
| 2207 | newmap = osdmap_apply_incremental(&p, end, osdc->osdmap); |
| 2208 | else |
| 2209 | newmap = ceph_osdmap_decode(&p, end); |
| 2210 | if (IS_ERR(newmap)) |
| 2211 | return PTR_ERR(newmap); |
| 2212 | |
| 2213 | if (newmap != osdc->osdmap) { |
| 2214 | /* |
| 2215 | * Preserve ->was_full before destroying the old map. |
| 2216 | * For pools that weren't in the old map, ->was_full |
| 2217 | * should be false. |
| 2218 | */ |
| 2219 | for (n = rb_first(&newmap->pg_pools); n; n = rb_next(n)) { |
| 2220 | struct ceph_pg_pool_info *pi = |
| 2221 | rb_entry(n, struct ceph_pg_pool_info, node); |
| 2222 | struct ceph_pg_pool_info *old_pi; |
| 2223 | |
| 2224 | old_pi = ceph_pg_pool_by_id(osdc->osdmap, pi->id); |
| 2225 | if (old_pi) |
| 2226 | pi->was_full = old_pi->was_full; |
| 2227 | else |
| 2228 | WARN_ON(pi->was_full); |
| 2229 | } |
| 2230 | |
| 2231 | if (osdc->osdmap->epoch && |
| 2232 | osdc->osdmap->epoch + 1 < newmap->epoch) { |
| 2233 | WARN_ON(incremental); |
| 2234 | skipped_map = true; |
| 2235 | } |
| 2236 | |
| 2237 | ceph_osdmap_destroy(osdc->osdmap); |
| 2238 | osdc->osdmap = newmap; |
| 2239 | } |
| 2240 | |
| 2241 | was_full &= !ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2242 | scan_requests(&osdc->homeless_osd, skipped_map, was_full, true, |
| 2243 | need_resend, need_resend_linger); |
| 2244 | |
| 2245 | for (n = rb_first(&osdc->osds); n; ) { |
| 2246 | struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); |
| 2247 | |
| 2248 | n = rb_next(n); /* close_osd() */ |
| 2249 | |
| 2250 | scan_requests(osd, skipped_map, was_full, true, need_resend, |
| 2251 | need_resend_linger); |
| 2252 | if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || |
| 2253 | memcmp(&osd->o_con.peer_addr, |
| 2254 | ceph_osd_addr(osdc->osdmap, osd->o_osd), |
| 2255 | sizeof(struct ceph_entity_addr))) |
| 2256 | close_osd(osd); |
| 2257 | } |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2258 | |
| 2259 | return 0; |
| 2260 | } |
Sage Weil | 6f6c700 | 2011-01-17 20:34:08 -0800 | [diff] [blame] | 2261 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2262 | static void kick_requests(struct ceph_osd_client *osdc, |
| 2263 | struct rb_root *need_resend, |
| 2264 | struct list_head *need_resend_linger) |
| 2265 | { |
| 2266 | struct rb_node *n; |
| 2267 | |
| 2268 | for (n = rb_first(need_resend); n; ) { |
| 2269 | struct ceph_osd_request *req = |
| 2270 | rb_entry(n, struct ceph_osd_request, r_node); |
| 2271 | struct ceph_osd *osd; |
| 2272 | |
| 2273 | n = rb_next(n); |
| 2274 | erase_request(need_resend, req); /* before link_request() */ |
| 2275 | |
| 2276 | WARN_ON(req->r_osd); |
| 2277 | calc_target(osdc, &req->r_t, NULL, false); |
| 2278 | osd = lookup_create_osd(osdc, req->r_t.osd, true); |
| 2279 | link_request(osd, req); |
| 2280 | if (!req->r_linger) { |
| 2281 | if (!osd_homeless(osd) && !req->r_t.paused) |
| 2282 | send_request(req); |
| 2283 | } |
| 2284 | } |
| 2285 | } |
| 2286 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2287 | /* |
| 2288 | * Process updated osd map. |
| 2289 | * |
| 2290 | * The message contains any number of incremental and full maps, normally |
| 2291 | * indicating some sort of topology change in the cluster. Kick requests |
| 2292 | * off to different OSDs as needed. |
| 2293 | */ |
| 2294 | void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) |
| 2295 | { |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2296 | void *p = msg->front.iov_base; |
| 2297 | void *const end = p + msg->front.iov_len; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2298 | u32 nr_maps, maplen; |
| 2299 | u32 epoch; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2300 | struct ceph_fsid fsid; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2301 | struct rb_root need_resend = RB_ROOT; |
| 2302 | LIST_HEAD(need_resend_linger); |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2303 | bool handled_incremental = false; |
| 2304 | bool was_pauserd, was_pausewr; |
| 2305 | bool pauserd, pausewr; |
| 2306 | int err; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2307 | |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2308 | dout("%s have %u\n", __func__, osdc->osdmap->epoch); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2309 | down_write(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2310 | |
| 2311 | /* verify fsid */ |
| 2312 | ceph_decode_need(&p, end, sizeof(fsid), bad); |
| 2313 | ceph_decode_copy(&p, &fsid, sizeof(fsid)); |
Sage Weil | 0743304 | 2009-11-18 16:50:41 -0800 | [diff] [blame] | 2314 | if (ceph_check_fsid(osdc->client, &fsid) < 0) |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2315 | goto bad; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2316 | |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2317 | was_pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); |
| 2318 | was_pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || |
| 2319 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || |
| 2320 | have_pool_full(osdc); |
Josh Durgin | 9a1ea2d | 2013-12-10 09:35:13 -0800 | [diff] [blame] | 2321 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2322 | /* incremental maps */ |
| 2323 | ceph_decode_32_safe(&p, end, nr_maps, bad); |
| 2324 | dout(" %d inc maps\n", nr_maps); |
| 2325 | while (nr_maps > 0) { |
| 2326 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); |
Sage Weil | c89136e | 2009-10-14 09:59:09 -0700 | [diff] [blame] | 2327 | epoch = ceph_decode_32(&p); |
| 2328 | maplen = ceph_decode_32(&p); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2329 | ceph_decode_need(&p, end, maplen, bad); |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2330 | if (osdc->osdmap->epoch && |
| 2331 | osdc->osdmap->epoch + 1 == epoch) { |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2332 | dout("applying incremental map %u len %d\n", |
| 2333 | epoch, maplen); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2334 | err = handle_one_map(osdc, p, p + maplen, true, |
| 2335 | &need_resend, &need_resend_linger); |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2336 | if (err) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2337 | goto bad; |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2338 | handled_incremental = true; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2339 | } else { |
| 2340 | dout("ignoring incremental map %u len %d\n", |
| 2341 | epoch, maplen); |
| 2342 | } |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2343 | p += maplen; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2344 | nr_maps--; |
| 2345 | } |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2346 | if (handled_incremental) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2347 | goto done; |
| 2348 | |
| 2349 | /* full maps */ |
| 2350 | ceph_decode_32_safe(&p, end, nr_maps, bad); |
| 2351 | dout(" %d full maps\n", nr_maps); |
| 2352 | while (nr_maps) { |
| 2353 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); |
Sage Weil | c89136e | 2009-10-14 09:59:09 -0700 | [diff] [blame] | 2354 | epoch = ceph_decode_32(&p); |
| 2355 | maplen = ceph_decode_32(&p); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2356 | ceph_decode_need(&p, end, maplen, bad); |
| 2357 | if (nr_maps > 1) { |
| 2358 | dout("skipping non-latest full map %u len %d\n", |
| 2359 | epoch, maplen); |
Ilya Dryomov | e5253a7 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2360 | } else if (osdc->osdmap->epoch >= epoch) { |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2361 | dout("skipping full map %u len %d, " |
| 2362 | "older than our %u\n", epoch, maplen, |
| 2363 | osdc->osdmap->epoch); |
| 2364 | } else { |
| 2365 | dout("taking full map %u len %d\n", epoch, maplen); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2366 | err = handle_one_map(osdc, p, p + maplen, false, |
| 2367 | &need_resend, &need_resend_linger); |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2368 | if (err) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2369 | goto bad; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2370 | } |
| 2371 | p += maplen; |
| 2372 | nr_maps--; |
| 2373 | } |
| 2374 | |
| 2375 | done: |
Sage Weil | cd634fb | 2011-05-12 09:29:18 -0700 | [diff] [blame] | 2376 | /* |
| 2377 | * subscribe to subsequent osdmap updates if full to ensure |
| 2378 | * we find out when we are no longer full and stop returning |
| 2379 | * ENOSPC. |
| 2380 | */ |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2381 | pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); |
| 2382 | pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || |
| 2383 | ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || |
| 2384 | have_pool_full(osdc); |
| 2385 | if (was_pauserd || was_pausewr || pauserd || pausewr) |
| 2386 | maybe_request_map(osdc); |
Sage Weil | cd634fb | 2011-05-12 09:29:18 -0700 | [diff] [blame] | 2387 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2388 | kick_requests(osdc, &need_resend, &need_resend_linger); |
Ilya Dryomov | 42c1b12 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2389 | |
| 2390 | ceph_monc_got_map(&osdc->client->monc, CEPH_SUB_OSDMAP, |
| 2391 | osdc->osdmap->epoch); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2392 | up_write(&osdc->lock); |
Yehuda Sadeh | 03066f2 | 2010-07-27 13:11:08 -0700 | [diff] [blame] | 2393 | wake_up_all(&osdc->client->auth_wq); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2394 | return; |
| 2395 | |
| 2396 | bad: |
| 2397 | pr_err("osdc handle_map corrupt msg\n"); |
Sage Weil | 9ec7cab | 2009-12-14 15:13:47 -0800 | [diff] [blame] | 2398 | ceph_msg_dump(msg); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2399 | up_write(&osdc->lock); |
| 2400 | } |
| 2401 | |
| 2402 | /* |
| 2403 | * Resubmit requests pending on the given osd. |
| 2404 | */ |
| 2405 | static void kick_osd_requests(struct ceph_osd *osd) |
| 2406 | { |
| 2407 | struct rb_node *n; |
| 2408 | |
| 2409 | for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { |
| 2410 | struct ceph_osd_request *req = |
| 2411 | rb_entry(n, struct ceph_osd_request, r_node); |
| 2412 | |
| 2413 | if (!req->r_linger) { |
| 2414 | if (!req->r_t.paused) |
| 2415 | send_request(req); |
| 2416 | } |
| 2417 | } |
| 2418 | } |
| 2419 | |
| 2420 | /* |
| 2421 | * If the osd connection drops, we need to resubmit all requests. |
| 2422 | */ |
| 2423 | static void osd_fault(struct ceph_connection *con) |
| 2424 | { |
| 2425 | struct ceph_osd *osd = con->private; |
| 2426 | struct ceph_osd_client *osdc = osd->o_osdc; |
| 2427 | |
| 2428 | dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); |
| 2429 | |
| 2430 | down_write(&osdc->lock); |
| 2431 | if (!osd_registered(osd)) { |
| 2432 | dout("%s osd%d unknown\n", __func__, osd->o_osd); |
| 2433 | goto out_unlock; |
| 2434 | } |
| 2435 | |
| 2436 | if (!reopen_osd(osd)) |
| 2437 | kick_osd_requests(osd); |
| 2438 | maybe_request_map(osdc); |
| 2439 | |
| 2440 | out_unlock: |
| 2441 | up_write(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2442 | } |
| 2443 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2444 | /* |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2445 | * watch/notify callback event infrastructure |
| 2446 | * |
| 2447 | * These callbacks are used both for watch and notify operations. |
| 2448 | */ |
| 2449 | static void __release_event(struct kref *kref) |
| 2450 | { |
| 2451 | struct ceph_osd_event *event = |
| 2452 | container_of(kref, struct ceph_osd_event, kref); |
| 2453 | |
| 2454 | dout("__release_event %p\n", event); |
| 2455 | kfree(event); |
| 2456 | } |
| 2457 | |
| 2458 | static void get_event(struct ceph_osd_event *event) |
| 2459 | { |
| 2460 | kref_get(&event->kref); |
| 2461 | } |
| 2462 | |
| 2463 | void ceph_osdc_put_event(struct ceph_osd_event *event) |
| 2464 | { |
| 2465 | kref_put(&event->kref, __release_event); |
| 2466 | } |
| 2467 | EXPORT_SYMBOL(ceph_osdc_put_event); |
| 2468 | |
| 2469 | static void __insert_event(struct ceph_osd_client *osdc, |
| 2470 | struct ceph_osd_event *new) |
| 2471 | { |
| 2472 | struct rb_node **p = &osdc->event_tree.rb_node; |
| 2473 | struct rb_node *parent = NULL; |
| 2474 | struct ceph_osd_event *event = NULL; |
| 2475 | |
| 2476 | while (*p) { |
| 2477 | parent = *p; |
| 2478 | event = rb_entry(parent, struct ceph_osd_event, node); |
| 2479 | if (new->cookie < event->cookie) |
| 2480 | p = &(*p)->rb_left; |
| 2481 | else if (new->cookie > event->cookie) |
| 2482 | p = &(*p)->rb_right; |
| 2483 | else |
| 2484 | BUG(); |
| 2485 | } |
| 2486 | |
| 2487 | rb_link_node(&new->node, parent, p); |
| 2488 | rb_insert_color(&new->node, &osdc->event_tree); |
| 2489 | } |
| 2490 | |
| 2491 | static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, |
| 2492 | u64 cookie) |
| 2493 | { |
| 2494 | struct rb_node **p = &osdc->event_tree.rb_node; |
| 2495 | struct rb_node *parent = NULL; |
| 2496 | struct ceph_osd_event *event = NULL; |
| 2497 | |
| 2498 | while (*p) { |
| 2499 | parent = *p; |
| 2500 | event = rb_entry(parent, struct ceph_osd_event, node); |
| 2501 | if (cookie < event->cookie) |
| 2502 | p = &(*p)->rb_left; |
| 2503 | else if (cookie > event->cookie) |
| 2504 | p = &(*p)->rb_right; |
| 2505 | else |
| 2506 | return event; |
| 2507 | } |
| 2508 | return NULL; |
| 2509 | } |
| 2510 | |
| 2511 | static void __remove_event(struct ceph_osd_event *event) |
| 2512 | { |
| 2513 | struct ceph_osd_client *osdc = event->osdc; |
| 2514 | |
| 2515 | if (!RB_EMPTY_NODE(&event->node)) { |
| 2516 | dout("__remove_event removed %p\n", event); |
| 2517 | rb_erase(&event->node, &osdc->event_tree); |
| 2518 | ceph_osdc_put_event(event); |
| 2519 | } else { |
| 2520 | dout("__remove_event didn't remove %p\n", event); |
| 2521 | } |
| 2522 | } |
| 2523 | |
| 2524 | int ceph_osdc_create_event(struct ceph_osd_client *osdc, |
| 2525 | void (*event_cb)(u64, u64, u8, void *), |
Alex Elder | 3c663bb | 2013-02-15 11:42:30 -0600 | [diff] [blame] | 2526 | void *data, struct ceph_osd_event **pevent) |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2527 | { |
| 2528 | struct ceph_osd_event *event; |
| 2529 | |
| 2530 | event = kmalloc(sizeof(*event), GFP_NOIO); |
| 2531 | if (!event) |
| 2532 | return -ENOMEM; |
| 2533 | |
| 2534 | dout("create_event %p\n", event); |
| 2535 | event->cb = event_cb; |
Alex Elder | 3c663bb | 2013-02-15 11:42:30 -0600 | [diff] [blame] | 2536 | event->one_shot = 0; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2537 | event->data = data; |
| 2538 | event->osdc = osdc; |
| 2539 | INIT_LIST_HEAD(&event->osd_node); |
Alex Elder | 3ee5234 | 2012-12-17 12:23:48 -0600 | [diff] [blame] | 2540 | RB_CLEAR_NODE(&event->node); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2541 | kref_init(&event->kref); /* one ref for us */ |
| 2542 | kref_get(&event->kref); /* one ref for the caller */ |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2543 | |
| 2544 | spin_lock(&osdc->event_lock); |
| 2545 | event->cookie = ++osdc->event_count; |
| 2546 | __insert_event(osdc, event); |
| 2547 | spin_unlock(&osdc->event_lock); |
| 2548 | |
| 2549 | *pevent = event; |
| 2550 | return 0; |
| 2551 | } |
| 2552 | EXPORT_SYMBOL(ceph_osdc_create_event); |
| 2553 | |
| 2554 | void ceph_osdc_cancel_event(struct ceph_osd_event *event) |
| 2555 | { |
| 2556 | struct ceph_osd_client *osdc = event->osdc; |
| 2557 | |
| 2558 | dout("cancel_event %p\n", event); |
| 2559 | spin_lock(&osdc->event_lock); |
| 2560 | __remove_event(event); |
| 2561 | spin_unlock(&osdc->event_lock); |
| 2562 | ceph_osdc_put_event(event); /* caller's */ |
| 2563 | } |
| 2564 | EXPORT_SYMBOL(ceph_osdc_cancel_event); |
| 2565 | |
| 2566 | |
| 2567 | static void do_event_work(struct work_struct *work) |
| 2568 | { |
| 2569 | struct ceph_osd_event_work *event_work = |
| 2570 | container_of(work, struct ceph_osd_event_work, work); |
| 2571 | struct ceph_osd_event *event = event_work->event; |
| 2572 | u64 ver = event_work->ver; |
| 2573 | u64 notify_id = event_work->notify_id; |
| 2574 | u8 opcode = event_work->opcode; |
| 2575 | |
| 2576 | dout("do_event_work completing %p\n", event); |
| 2577 | event->cb(ver, notify_id, opcode, event->data); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2578 | dout("do_event_work completed %p\n", event); |
| 2579 | ceph_osdc_put_event(event); |
| 2580 | kfree(event_work); |
| 2581 | } |
| 2582 | |
| 2583 | |
| 2584 | /* |
| 2585 | * Process osd watch notifications |
| 2586 | */ |
Alex Elder | 3c663bb | 2013-02-15 11:42:30 -0600 | [diff] [blame] | 2587 | static void handle_watch_notify(struct ceph_osd_client *osdc, |
| 2588 | struct ceph_msg *msg) |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2589 | { |
| 2590 | void *p, *end; |
| 2591 | u8 proto_ver; |
| 2592 | u64 cookie, ver, notify_id; |
| 2593 | u8 opcode; |
| 2594 | struct ceph_osd_event *event; |
| 2595 | struct ceph_osd_event_work *event_work; |
| 2596 | |
| 2597 | p = msg->front.iov_base; |
| 2598 | end = p + msg->front.iov_len; |
| 2599 | |
| 2600 | ceph_decode_8_safe(&p, end, proto_ver, bad); |
| 2601 | ceph_decode_8_safe(&p, end, opcode, bad); |
| 2602 | ceph_decode_64_safe(&p, end, cookie, bad); |
| 2603 | ceph_decode_64_safe(&p, end, ver, bad); |
| 2604 | ceph_decode_64_safe(&p, end, notify_id, bad); |
| 2605 | |
| 2606 | spin_lock(&osdc->event_lock); |
| 2607 | event = __find_event(osdc, cookie); |
| 2608 | if (event) { |
Alex Elder | 3c663bb | 2013-02-15 11:42:30 -0600 | [diff] [blame] | 2609 | BUG_ON(event->one_shot); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2610 | get_event(event); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2611 | } |
| 2612 | spin_unlock(&osdc->event_lock); |
| 2613 | dout("handle_watch_notify cookie %lld ver %lld event %p\n", |
| 2614 | cookie, ver, event); |
| 2615 | if (event) { |
| 2616 | event_work = kmalloc(sizeof(*event_work), GFP_NOIO); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2617 | if (!event_work) { |
Ilya Dryomov | 91883cd | 2014-09-11 12:18:53 +0400 | [diff] [blame] | 2618 | pr_err("couldn't allocate event_work\n"); |
| 2619 | ceph_osdc_put_event(event); |
| 2620 | return; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2621 | } |
Mariusz Kozlowski | 6b0ae40 | 2011-03-26 19:29:34 +0100 | [diff] [blame] | 2622 | INIT_WORK(&event_work->work, do_event_work); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2623 | event_work->event = event; |
| 2624 | event_work->ver = ver; |
| 2625 | event_work->notify_id = notify_id; |
| 2626 | event_work->opcode = opcode; |
Ilya Dryomov | 91883cd | 2014-09-11 12:18:53 +0400 | [diff] [blame] | 2627 | |
| 2628 | queue_work(osdc->notify_wq, &event_work->work); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2629 | } |
| 2630 | |
| 2631 | return; |
| 2632 | |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2633 | bad: |
| 2634 | pr_err("osdc handle_watch_notify corrupt msg\n"); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2635 | } |
| 2636 | |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2637 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2638 | * Register request, send initial attempt. |
| 2639 | */ |
| 2640 | int ceph_osdc_start_request(struct ceph_osd_client *osdc, |
| 2641 | struct ceph_osd_request *req, |
| 2642 | bool nofail) |
| 2643 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2644 | down_read(&osdc->lock); |
| 2645 | submit_request(req, false); |
| 2646 | up_read(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2647 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2648 | return 0; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2649 | } |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 2650 | EXPORT_SYMBOL(ceph_osdc_start_request); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2651 | |
| 2652 | /* |
Ilya Dryomov | c9f9b93d | 2014-06-19 11:38:13 +0400 | [diff] [blame] | 2653 | * Unregister a registered request. The request is not completed (i.e. |
| 2654 | * no callbacks or wakeups) - higher layers are supposed to know what |
| 2655 | * they are canceling. |
| 2656 | */ |
| 2657 | void ceph_osdc_cancel_request(struct ceph_osd_request *req) |
| 2658 | { |
| 2659 | struct ceph_osd_client *osdc = req->r_osdc; |
| 2660 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2661 | down_write(&osdc->lock); |
Ilya Dryomov | c9f9b93d | 2014-06-19 11:38:13 +0400 | [diff] [blame] | 2662 | if (req->r_linger) |
| 2663 | __unregister_linger_request(osdc, req); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2664 | if (req->r_osd) |
| 2665 | cancel_request(req); |
| 2666 | up_write(&osdc->lock); |
Ilya Dryomov | c9f9b93d | 2014-06-19 11:38:13 +0400 | [diff] [blame] | 2667 | } |
| 2668 | EXPORT_SYMBOL(ceph_osdc_cancel_request); |
| 2669 | |
| 2670 | /* |
Ilya Dryomov | 42b0696 | 2016-04-28 16:07:26 +0200 | [diff] [blame^] | 2671 | * @timeout: in jiffies, 0 means "wait forever" |
| 2672 | */ |
| 2673 | static int wait_request_timeout(struct ceph_osd_request *req, |
| 2674 | unsigned long timeout) |
| 2675 | { |
| 2676 | long left; |
| 2677 | |
| 2678 | dout("%s req %p tid %llu\n", __func__, req, req->r_tid); |
| 2679 | left = wait_for_completion_interruptible_timeout(&req->r_completion, |
| 2680 | ceph_timeout_jiffies(timeout)); |
| 2681 | if (left <= 0) { |
| 2682 | left = left ?: -ETIMEDOUT; |
| 2683 | ceph_osdc_cancel_request(req); |
| 2684 | |
| 2685 | /* kludge - need to to wake ceph_osdc_sync() */ |
| 2686 | complete_all(&req->r_safe_completion); |
| 2687 | } else { |
| 2688 | left = req->r_result; /* completed */ |
| 2689 | } |
| 2690 | |
| 2691 | return left; |
| 2692 | } |
| 2693 | |
| 2694 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2695 | * wait for a request to complete |
| 2696 | */ |
| 2697 | int ceph_osdc_wait_request(struct ceph_osd_client *osdc, |
| 2698 | struct ceph_osd_request *req) |
| 2699 | { |
Ilya Dryomov | 42b0696 | 2016-04-28 16:07:26 +0200 | [diff] [blame^] | 2700 | return wait_request_timeout(req, 0); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2701 | } |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 2702 | EXPORT_SYMBOL(ceph_osdc_wait_request); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2703 | |
| 2704 | /* |
| 2705 | * sync - wait for all in-flight requests to flush. avoid starvation. |
| 2706 | */ |
| 2707 | void ceph_osdc_sync(struct ceph_osd_client *osdc) |
| 2708 | { |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2709 | struct rb_node *n, *p; |
| 2710 | u64 last_tid = atomic64_read(&osdc->last_tid); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2711 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2712 | again: |
| 2713 | down_read(&osdc->lock); |
| 2714 | for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { |
| 2715 | struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2716 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2717 | mutex_lock(&osd->lock); |
| 2718 | for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { |
| 2719 | struct ceph_osd_request *req = |
| 2720 | rb_entry(p, struct ceph_osd_request, r_node); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2721 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2722 | if (req->r_tid > last_tid) |
| 2723 | break; |
| 2724 | |
| 2725 | if (!(req->r_flags & CEPH_OSD_FLAG_WRITE)) |
| 2726 | continue; |
| 2727 | |
| 2728 | ceph_osdc_get_request(req); |
| 2729 | mutex_unlock(&osd->lock); |
| 2730 | up_read(&osdc->lock); |
| 2731 | dout("%s waiting on req %p tid %llu last_tid %llu\n", |
| 2732 | __func__, req, req->r_tid, last_tid); |
| 2733 | wait_for_completion(&req->r_safe_completion); |
| 2734 | ceph_osdc_put_request(req); |
| 2735 | goto again; |
| 2736 | } |
| 2737 | |
| 2738 | mutex_unlock(&osd->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2739 | } |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2740 | |
| 2741 | up_read(&osdc->lock); |
| 2742 | dout("%s done last_tid %llu\n", __func__, last_tid); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2743 | } |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 2744 | EXPORT_SYMBOL(ceph_osdc_sync); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2745 | |
| 2746 | /* |
Josh Durgin | dd935f4 | 2013-08-28 21:43:09 -0700 | [diff] [blame] | 2747 | * Call all pending notify callbacks - for use after a watch is |
| 2748 | * unregistered, to make sure no more callbacks for it will be invoked |
| 2749 | */ |
stephen hemminger | f6479449 | 2014-06-10 20:30:13 -0700 | [diff] [blame] | 2750 | void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) |
Josh Durgin | dd935f4 | 2013-08-28 21:43:09 -0700 | [diff] [blame] | 2751 | { |
| 2752 | flush_workqueue(osdc->notify_wq); |
| 2753 | } |
| 2754 | EXPORT_SYMBOL(ceph_osdc_flush_notifies); |
| 2755 | |
| 2756 | |
| 2757 | /* |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2758 | * init, shutdown |
| 2759 | */ |
| 2760 | int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) |
| 2761 | { |
| 2762 | int err; |
| 2763 | |
| 2764 | dout("init\n"); |
| 2765 | osdc->client = client; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2766 | init_rwsem(&osdc->lock); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2767 | osdc->osds = RB_ROOT; |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 2768 | INIT_LIST_HEAD(&osdc->osd_lru); |
Ilya Dryomov | 9dd2845 | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2769 | spin_lock_init(&osdc->osd_lru_lock); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2770 | INIT_LIST_HEAD(&osdc->req_linger); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2771 | osd_init(&osdc->homeless_osd); |
| 2772 | osdc->homeless_osd.o_osdc = osdc; |
| 2773 | osdc->homeless_osd.o_osd = CEPH_HOMELESS_OSD; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2774 | INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 2775 | INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2776 | spin_lock_init(&osdc->event_lock); |
| 2777 | osdc->event_tree = RB_ROOT; |
| 2778 | osdc->event_count = 0; |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 2779 | |
Sage Weil | 5f44f14 | 2009-11-18 14:52:18 -0800 | [diff] [blame] | 2780 | err = -ENOMEM; |
Ilya Dryomov | e5253a7 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2781 | osdc->osdmap = ceph_osdmap_alloc(); |
| 2782 | if (!osdc->osdmap) |
| 2783 | goto out; |
| 2784 | |
Ilya Dryomov | 9e767ad | 2016-02-09 17:25:31 +0100 | [diff] [blame] | 2785 | osdc->req_mempool = mempool_create_slab_pool(10, |
| 2786 | ceph_osd_request_cache); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2787 | if (!osdc->req_mempool) |
Ilya Dryomov | e5253a7 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2788 | goto out_map; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2789 | |
Sage Weil | d50b409 | 2012-07-09 14:22:34 -0700 | [diff] [blame] | 2790 | err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, |
Ilya Dryomov | 711da55 | 2016-04-27 18:32:56 +0200 | [diff] [blame] | 2791 | PAGE_SIZE, 10, true, "osd_op"); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2792 | if (err < 0) |
Sage Weil | 5f44f14 | 2009-11-18 14:52:18 -0800 | [diff] [blame] | 2793 | goto out_mempool; |
Sage Weil | d50b409 | 2012-07-09 14:22:34 -0700 | [diff] [blame] | 2794 | err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, |
Ilya Dryomov | 711da55 | 2016-04-27 18:32:56 +0200 | [diff] [blame] | 2795 | PAGE_SIZE, 10, true, "osd_op_reply"); |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 2796 | if (err < 0) |
| 2797 | goto out_msgpool; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2798 | |
Dan Carpenter | dbcae08 | 2013-08-15 08:58:59 +0300 | [diff] [blame] | 2799 | err = -ENOMEM; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2800 | osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); |
Dan Carpenter | dbcae08 | 2013-08-15 08:58:59 +0300 | [diff] [blame] | 2801 | if (!osdc->notify_wq) |
Ilya Dryomov | c172ec5 | 2014-01-31 17:49:22 +0200 | [diff] [blame] | 2802 | goto out_msgpool_reply; |
| 2803 | |
Ilya Dryomov | fbca963 | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2804 | schedule_delayed_work(&osdc->timeout_work, |
| 2805 | osdc->client->options->osd_keepalive_timeout); |
Ilya Dryomov | b37ee1b | 2016-04-28 16:07:24 +0200 | [diff] [blame] | 2806 | schedule_delayed_work(&osdc->osds_timeout_work, |
| 2807 | round_jiffies_relative(osdc->client->options->osd_idle_ttl)); |
| 2808 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2809 | return 0; |
Sage Weil | 5f44f14 | 2009-11-18 14:52:18 -0800 | [diff] [blame] | 2810 | |
Ilya Dryomov | c172ec5 | 2014-01-31 17:49:22 +0200 | [diff] [blame] | 2811 | out_msgpool_reply: |
| 2812 | ceph_msgpool_destroy(&osdc->msgpool_op_reply); |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 2813 | out_msgpool: |
| 2814 | ceph_msgpool_destroy(&osdc->msgpool_op); |
Sage Weil | 5f44f14 | 2009-11-18 14:52:18 -0800 | [diff] [blame] | 2815 | out_mempool: |
| 2816 | mempool_destroy(osdc->req_mempool); |
Ilya Dryomov | e5253a7 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2817 | out_map: |
| 2818 | ceph_osdmap_destroy(osdc->osdmap); |
Sage Weil | 5f44f14 | 2009-11-18 14:52:18 -0800 | [diff] [blame] | 2819 | out: |
| 2820 | return err; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2821 | } |
| 2822 | |
| 2823 | void ceph_osdc_stop(struct ceph_osd_client *osdc) |
| 2824 | { |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2825 | flush_workqueue(osdc->notify_wq); |
| 2826 | destroy_workqueue(osdc->notify_wq); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2827 | cancel_delayed_work_sync(&osdc->timeout_work); |
Yehuda Sadeh | f5a2041 | 2010-02-03 11:00:26 -0800 | [diff] [blame] | 2828 | cancel_delayed_work_sync(&osdc->osds_timeout_work); |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 2829 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2830 | down_write(&osdc->lock); |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 2831 | while (!RB_EMPTY_ROOT(&osdc->osds)) { |
| 2832 | struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), |
| 2833 | struct ceph_osd, o_node); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2834 | close_osd(osd); |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 2835 | } |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2836 | up_write(&osdc->lock); |
| 2837 | WARN_ON(atomic_read(&osdc->homeless_osd.o_ref) != 1); |
| 2838 | osd_cleanup(&osdc->homeless_osd); |
| 2839 | |
| 2840 | WARN_ON(!list_empty(&osdc->osd_lru)); |
| 2841 | WARN_ON(atomic_read(&osdc->num_requests)); |
| 2842 | WARN_ON(atomic_read(&osdc->num_homeless)); |
Ilya Dryomov | 42a2c09 | 2016-04-28 16:07:22 +0200 | [diff] [blame] | 2843 | |
Ilya Dryomov | e5253a7 | 2016-04-28 16:07:25 +0200 | [diff] [blame] | 2844 | ceph_osdmap_destroy(osdc->osdmap); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2845 | mempool_destroy(osdc->req_mempool); |
| 2846 | ceph_msgpool_destroy(&osdc->msgpool_op); |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 2847 | ceph_msgpool_destroy(&osdc->msgpool_op_reply); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2848 | } |
| 2849 | |
| 2850 | /* |
| 2851 | * Read some contiguous pages. If we cross a stripe boundary, shorten |
| 2852 | * *plen. Return number of bytes read, or error. |
| 2853 | */ |
| 2854 | int ceph_osdc_readpages(struct ceph_osd_client *osdc, |
| 2855 | struct ceph_vino vino, struct ceph_file_layout *layout, |
| 2856 | u64 off, u64 *plen, |
| 2857 | u32 truncate_seq, u64 truncate_size, |
Sage Weil | b7495fc | 2010-11-09 12:43:12 -0800 | [diff] [blame] | 2858 | struct page **pages, int num_pages, int page_align) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2859 | { |
| 2860 | struct ceph_osd_request *req; |
| 2861 | int rc = 0; |
| 2862 | |
| 2863 | dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, |
| 2864 | vino.snap, off, *plen); |
Yan, Zheng | 715e4cd | 2014-11-13 14:40:37 +0800 | [diff] [blame] | 2865 | req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1, |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2866 | CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, |
Alex Elder | acead00 | 2013-03-14 14:09:05 -0500 | [diff] [blame] | 2867 | NULL, truncate_seq, truncate_size, |
Alex Elder | 153e516 | 2013-03-01 18:00:15 -0600 | [diff] [blame] | 2868 | false); |
Sage Weil | 6816282 | 2012-09-24 21:01:02 -0700 | [diff] [blame] | 2869 | if (IS_ERR(req)) |
| 2870 | return PTR_ERR(req); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2871 | |
| 2872 | /* it may be a short read due to an object boundary */ |
Alex Elder | 406e2c9 | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 2873 | osd_req_op_extent_osd_data_pages(req, 0, |
Alex Elder | a4ce40a | 2013-04-05 01:27:12 -0500 | [diff] [blame] | 2874 | pages, *plen, page_align, false, false); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2875 | |
Alex Elder | e0c5948 | 2013-03-07 15:38:25 -0600 | [diff] [blame] | 2876 | dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 2877 | off, *plen, *plen, page_align); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2878 | |
| 2879 | rc = ceph_osdc_start_request(osdc, req, false); |
| 2880 | if (!rc) |
| 2881 | rc = ceph_osdc_wait_request(osdc, req); |
| 2882 | |
| 2883 | ceph_osdc_put_request(req); |
| 2884 | dout("readpages result %d\n", rc); |
| 2885 | return rc; |
| 2886 | } |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 2887 | EXPORT_SYMBOL(ceph_osdc_readpages); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2888 | |
| 2889 | /* |
| 2890 | * do a synchronous write on N pages |
| 2891 | */ |
| 2892 | int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, |
| 2893 | struct ceph_file_layout *layout, |
| 2894 | struct ceph_snap_context *snapc, |
| 2895 | u64 off, u64 len, |
| 2896 | u32 truncate_seq, u64 truncate_size, |
| 2897 | struct timespec *mtime, |
Alex Elder | 2480882 | 2013-02-15 11:42:29 -0600 | [diff] [blame] | 2898 | struct page **pages, int num_pages) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2899 | { |
| 2900 | struct ceph_osd_request *req; |
| 2901 | int rc = 0; |
Sage Weil | b7495fc | 2010-11-09 12:43:12 -0800 | [diff] [blame] | 2902 | int page_align = off & ~PAGE_MASK; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2903 | |
Yan, Zheng | 715e4cd | 2014-11-13 14:40:37 +0800 | [diff] [blame] | 2904 | req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1, |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2905 | CEPH_OSD_OP_WRITE, |
Alex Elder | 2480882 | 2013-02-15 11:42:29 -0600 | [diff] [blame] | 2906 | CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, |
Alex Elder | acead00 | 2013-03-14 14:09:05 -0500 | [diff] [blame] | 2907 | snapc, truncate_seq, truncate_size, |
Alex Elder | 153e516 | 2013-03-01 18:00:15 -0600 | [diff] [blame] | 2908 | true); |
Sage Weil | 6816282 | 2012-09-24 21:01:02 -0700 | [diff] [blame] | 2909 | if (IS_ERR(req)) |
| 2910 | return PTR_ERR(req); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2911 | |
| 2912 | /* it may be a short write due to an object boundary */ |
Alex Elder | 406e2c9 | 2013-04-15 14:50:36 -0500 | [diff] [blame] | 2913 | osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align, |
Alex Elder | 43bfe5d | 2013-04-03 01:28:57 -0500 | [diff] [blame] | 2914 | false, false); |
| 2915 | dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2916 | |
Ilya Dryomov | bb873b5 | 2016-05-26 00:29:52 +0200 | [diff] [blame] | 2917 | req->r_mtime = *mtime; |
Alex Elder | 87f979d | 2013-02-15 11:42:29 -0600 | [diff] [blame] | 2918 | rc = ceph_osdc_start_request(osdc, req, true); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2919 | if (!rc) |
| 2920 | rc = ceph_osdc_wait_request(osdc, req); |
| 2921 | |
| 2922 | ceph_osdc_put_request(req); |
| 2923 | if (rc == 0) |
| 2924 | rc = len; |
| 2925 | dout("writepages result %d\n", rc); |
| 2926 | return rc; |
| 2927 | } |
Yehuda Sadeh | 3d14c5d | 2010-04-06 15:14:15 -0700 | [diff] [blame] | 2928 | EXPORT_SYMBOL(ceph_osdc_writepages); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2929 | |
Alex Elder | 5522ae0 | 2013-05-01 12:43:04 -0500 | [diff] [blame] | 2930 | int ceph_osdc_setup(void) |
| 2931 | { |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 2932 | size_t size = sizeof(struct ceph_osd_request) + |
| 2933 | CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op); |
| 2934 | |
Alex Elder | 5522ae0 | 2013-05-01 12:43:04 -0500 | [diff] [blame] | 2935 | BUG_ON(ceph_osd_request_cache); |
Ilya Dryomov | 3f1af42 | 2016-02-09 17:50:15 +0100 | [diff] [blame] | 2936 | ceph_osd_request_cache = kmem_cache_create("ceph_osd_request", size, |
| 2937 | 0, 0, NULL); |
Alex Elder | 5522ae0 | 2013-05-01 12:43:04 -0500 | [diff] [blame] | 2938 | |
| 2939 | return ceph_osd_request_cache ? 0 : -ENOMEM; |
| 2940 | } |
| 2941 | EXPORT_SYMBOL(ceph_osdc_setup); |
| 2942 | |
| 2943 | void ceph_osdc_cleanup(void) |
| 2944 | { |
| 2945 | BUG_ON(!ceph_osd_request_cache); |
| 2946 | kmem_cache_destroy(ceph_osd_request_cache); |
| 2947 | ceph_osd_request_cache = NULL; |
| 2948 | } |
| 2949 | EXPORT_SYMBOL(ceph_osdc_cleanup); |
| 2950 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2951 | /* |
| 2952 | * handle incoming message |
| 2953 | */ |
| 2954 | static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) |
| 2955 | { |
| 2956 | struct ceph_osd *osd = con->private; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2957 | struct ceph_osd_client *osdc = osd->o_osdc; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2958 | int type = le16_to_cpu(msg->hdr.type); |
| 2959 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2960 | switch (type) { |
| 2961 | case CEPH_MSG_OSD_MAP: |
| 2962 | ceph_osdc_handle_map(osdc, msg); |
| 2963 | break; |
| 2964 | case CEPH_MSG_OSD_OPREPLY: |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2965 | handle_reply(osd, msg); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2966 | break; |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 2967 | case CEPH_MSG_WATCH_NOTIFY: |
| 2968 | handle_watch_notify(osdc, msg); |
| 2969 | break; |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2970 | |
| 2971 | default: |
| 2972 | pr_err("received unknown message type %d %s\n", type, |
| 2973 | ceph_msg_type_name(type)); |
| 2974 | } |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2975 | |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2976 | ceph_msg_put(msg); |
| 2977 | } |
| 2978 | |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 2979 | /* |
Ilya Dryomov | d15f9d6 | 2015-09-02 11:37:09 +0300 | [diff] [blame] | 2980 | * Lookup and return message for incoming reply. Don't try to do |
| 2981 | * anything about a larger than preallocated data portion of the |
| 2982 | * message at the moment - for now, just skip the message. |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 2983 | */ |
| 2984 | static struct ceph_msg *get_reply(struct ceph_connection *con, |
Yehuda Sadeh | 2450418 | 2010-01-08 13:58:34 -0800 | [diff] [blame] | 2985 | struct ceph_msg_header *hdr, |
| 2986 | int *skip) |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2987 | { |
| 2988 | struct ceph_osd *osd = con->private; |
| 2989 | struct ceph_osd_client *osdc = osd->o_osdc; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2990 | struct ceph_msg *m = NULL; |
Yehuda Sadeh | 0547a9b | 2010-01-11 14:47:13 -0800 | [diff] [blame] | 2991 | struct ceph_osd_request *req; |
Ilya Dryomov | 3f0a4ac | 2014-01-09 20:08:21 +0200 | [diff] [blame] | 2992 | int front_len = le32_to_cpu(hdr->front_len); |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 2993 | int data_len = le32_to_cpu(hdr->data_len); |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2994 | u64 tid = le64_to_cpu(hdr->tid); |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 2995 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 2996 | down_read(&osdc->lock); |
| 2997 | if (!osd_registered(osd)) { |
| 2998 | dout("%s osd%d unknown, skipping\n", __func__, osd->o_osd); |
| 2999 | *skip = 1; |
| 3000 | goto out_unlock_osdc; |
| 3001 | } |
| 3002 | WARN_ON(osd->o_osd != le64_to_cpu(hdr->src.num)); |
| 3003 | |
| 3004 | mutex_lock(&osd->lock); |
| 3005 | req = lookup_request(&osd->o_requests, tid); |
Yehuda Sadeh | 0547a9b | 2010-01-11 14:47:13 -0800 | [diff] [blame] | 3006 | if (!req) { |
Ilya Dryomov | cd8140c | 2016-02-19 11:38:57 +0100 | [diff] [blame] | 3007 | dout("%s osd%d tid %llu unknown, skipping\n", __func__, |
| 3008 | osd->o_osd, tid); |
Ilya Dryomov | d15f9d6 | 2015-09-02 11:37:09 +0300 | [diff] [blame] | 3009 | *skip = 1; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 3010 | goto out_unlock_session; |
Yehuda Sadeh | 0547a9b | 2010-01-11 14:47:13 -0800 | [diff] [blame] | 3011 | } |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 3012 | |
Alex Elder | ace6d3a | 2013-04-01 16:12:14 -0500 | [diff] [blame] | 3013 | ceph_msg_revoke_incoming(req->r_reply); |
Yehuda Sadeh | 2450418 | 2010-01-08 13:58:34 -0800 | [diff] [blame] | 3014 | |
Ilya Dryomov | f2be82b | 2014-01-09 20:08:21 +0200 | [diff] [blame] | 3015 | if (front_len > req->r_reply->front_alloc_len) { |
Ilya Dryomov | d15f9d6 | 2015-09-02 11:37:09 +0300 | [diff] [blame] | 3016 | pr_warn("%s osd%d tid %llu front %d > preallocated %d\n", |
| 3017 | __func__, osd->o_osd, req->r_tid, front_len, |
| 3018 | req->r_reply->front_alloc_len); |
Ilya Dryomov | 3f0a4ac | 2014-01-09 20:08:21 +0200 | [diff] [blame] | 3019 | m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS, |
| 3020 | false); |
Sage Weil | a79832f | 2010-04-01 16:06:19 -0700 | [diff] [blame] | 3021 | if (!m) |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 3022 | goto out_unlock_session; |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 3023 | ceph_msg_put(req->r_reply); |
| 3024 | req->r_reply = m; |
| 3025 | } |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 3026 | |
Ilya Dryomov | d15f9d6 | 2015-09-02 11:37:09 +0300 | [diff] [blame] | 3027 | if (data_len > req->r_reply->data_length) { |
| 3028 | pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n", |
| 3029 | __func__, osd->o_osd, req->r_tid, data_len, |
| 3030 | req->r_reply->data_length); |
| 3031 | m = NULL; |
| 3032 | *skip = 1; |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 3033 | goto out_unlock_session; |
Yehuda Sadeh | 0547a9b | 2010-01-11 14:47:13 -0800 | [diff] [blame] | 3034 | } |
Ilya Dryomov | d15f9d6 | 2015-09-02 11:37:09 +0300 | [diff] [blame] | 3035 | |
| 3036 | m = ceph_msg_get(req->r_reply); |
Sage Weil | c16e786 | 2010-03-01 13:02:00 -0800 | [diff] [blame] | 3037 | dout("get_reply tid %lld %p\n", tid, m); |
Yehuda Sadeh | 0547a9b | 2010-01-11 14:47:13 -0800 | [diff] [blame] | 3038 | |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 3039 | out_unlock_session: |
| 3040 | mutex_unlock(&osd->lock); |
| 3041 | out_unlock_osdc: |
| 3042 | up_read(&osdc->lock); |
Yehuda Sadeh | 2450418 | 2010-01-08 13:58:34 -0800 | [diff] [blame] | 3043 | return m; |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 3044 | } |
| 3045 | |
| 3046 | static struct ceph_msg *alloc_msg(struct ceph_connection *con, |
| 3047 | struct ceph_msg_header *hdr, |
| 3048 | int *skip) |
| 3049 | { |
| 3050 | struct ceph_osd *osd = con->private; |
| 3051 | int type = le16_to_cpu(hdr->type); |
| 3052 | int front = le32_to_cpu(hdr->front_len); |
| 3053 | |
Alex Elder | 1c20f2d | 2012-06-04 14:43:32 -0500 | [diff] [blame] | 3054 | *skip = 0; |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 3055 | switch (type) { |
| 3056 | case CEPH_MSG_OSD_MAP: |
Yehuda Sadeh | a40c4f1 | 2011-03-21 15:07:16 -0700 | [diff] [blame] | 3057 | case CEPH_MSG_WATCH_NOTIFY: |
Sage Weil | b61c276 | 2011-08-09 15:03:46 -0700 | [diff] [blame] | 3058 | return ceph_msg_new(type, front, GFP_NOFS, false); |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 3059 | case CEPH_MSG_OSD_OPREPLY: |
| 3060 | return get_reply(con, hdr, skip); |
| 3061 | default: |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 3062 | pr_warn("%s osd%d unknown msg type %d, skipping\n", __func__, |
| 3063 | osd->o_osd, type); |
Sage Weil | 5b3a4db | 2010-02-19 21:43:23 -0800 | [diff] [blame] | 3064 | *skip = 1; |
| 3065 | return NULL; |
| 3066 | } |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 3067 | } |
| 3068 | |
| 3069 | /* |
| 3070 | * Wrappers to refcount containing ceph_osd struct |
| 3071 | */ |
| 3072 | static struct ceph_connection *get_osd_con(struct ceph_connection *con) |
| 3073 | { |
| 3074 | struct ceph_osd *osd = con->private; |
| 3075 | if (get_osd(osd)) |
| 3076 | return con; |
| 3077 | return NULL; |
| 3078 | } |
| 3079 | |
| 3080 | static void put_osd_con(struct ceph_connection *con) |
| 3081 | { |
| 3082 | struct ceph_osd *osd = con->private; |
| 3083 | put_osd(osd); |
| 3084 | } |
| 3085 | |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3086 | /* |
| 3087 | * authentication |
| 3088 | */ |
Alex Elder | a3530df | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3089 | /* |
| 3090 | * Note: returned pointer is the address of a structure that's |
| 3091 | * managed separately. Caller must *not* attempt to free it. |
| 3092 | */ |
| 3093 | static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, |
Alex Elder | 8f43fb5 | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3094 | int *proto, int force_new) |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3095 | { |
| 3096 | struct ceph_osd *o = con->private; |
| 3097 | struct ceph_osd_client *osdc = o->o_osdc; |
| 3098 | struct ceph_auth_client *ac = osdc->client->monc.auth; |
Alex Elder | 74f1869 | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3099 | struct ceph_auth_handshake *auth = &o->o_auth; |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3100 | |
Alex Elder | 74f1869 | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3101 | if (force_new && auth->authorizer) { |
Ilya Dryomov | 6c1ea26 | 2016-04-11 19:34:49 +0200 | [diff] [blame] | 3102 | ceph_auth_destroy_authorizer(auth->authorizer); |
Alex Elder | 74f1869 | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3103 | auth->authorizer = NULL; |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3104 | } |
Sage Weil | 27859f9 | 2013-03-25 10:26:14 -0700 | [diff] [blame] | 3105 | if (!auth->authorizer) { |
| 3106 | int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, |
| 3107 | auth); |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3108 | if (ret) |
Alex Elder | a3530df | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3109 | return ERR_PTR(ret); |
Sage Weil | 27859f9 | 2013-03-25 10:26:14 -0700 | [diff] [blame] | 3110 | } else { |
| 3111 | int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, |
Sage Weil | 0bed9b5 | 2013-03-25 10:26:01 -0700 | [diff] [blame] | 3112 | auth); |
| 3113 | if (ret) |
| 3114 | return ERR_PTR(ret); |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3115 | } |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3116 | *proto = ac->protocol; |
Alex Elder | 74f1869 | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3117 | |
Alex Elder | a3530df | 2012-05-16 15:16:39 -0500 | [diff] [blame] | 3118 | return auth; |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3119 | } |
| 3120 | |
| 3121 | |
| 3122 | static int verify_authorizer_reply(struct ceph_connection *con, int len) |
| 3123 | { |
| 3124 | struct ceph_osd *o = con->private; |
| 3125 | struct ceph_osd_client *osdc = o->o_osdc; |
| 3126 | struct ceph_auth_client *ac = osdc->client->monc.auth; |
| 3127 | |
Sage Weil | 27859f9 | 2013-03-25 10:26:14 -0700 | [diff] [blame] | 3128 | return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3129 | } |
| 3130 | |
Sage Weil | 9bd2e6f | 2010-02-02 16:21:06 -0800 | [diff] [blame] | 3131 | static int invalidate_authorizer(struct ceph_connection *con) |
| 3132 | { |
| 3133 | struct ceph_osd *o = con->private; |
| 3134 | struct ceph_osd_client *osdc = o->o_osdc; |
| 3135 | struct ceph_auth_client *ac = osdc->client->monc.auth; |
| 3136 | |
Sage Weil | 27859f9 | 2013-03-25 10:26:14 -0700 | [diff] [blame] | 3137 | ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); |
Sage Weil | 9bd2e6f | 2010-02-02 16:21:06 -0800 | [diff] [blame] | 3138 | return ceph_monc_validate_auth(&osdc->client->monc); |
| 3139 | } |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3140 | |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3141 | static int osd_sign_message(struct ceph_msg *msg) |
Yan, Zheng | 33d0733 | 2014-11-04 16:33:37 +0800 | [diff] [blame] | 3142 | { |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3143 | struct ceph_osd *o = msg->con->private; |
Yan, Zheng | 33d0733 | 2014-11-04 16:33:37 +0800 | [diff] [blame] | 3144 | struct ceph_auth_handshake *auth = &o->o_auth; |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3145 | |
Yan, Zheng | 33d0733 | 2014-11-04 16:33:37 +0800 | [diff] [blame] | 3146 | return ceph_auth_sign_message(auth, msg); |
| 3147 | } |
| 3148 | |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3149 | static int osd_check_message_signature(struct ceph_msg *msg) |
Yan, Zheng | 33d0733 | 2014-11-04 16:33:37 +0800 | [diff] [blame] | 3150 | { |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3151 | struct ceph_osd *o = msg->con->private; |
Yan, Zheng | 33d0733 | 2014-11-04 16:33:37 +0800 | [diff] [blame] | 3152 | struct ceph_auth_handshake *auth = &o->o_auth; |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3153 | |
Yan, Zheng | 33d0733 | 2014-11-04 16:33:37 +0800 | [diff] [blame] | 3154 | return ceph_auth_check_message_signature(auth, msg); |
| 3155 | } |
| 3156 | |
Tobias Klauser | 9e32789 | 2010-05-20 10:40:19 +0200 | [diff] [blame] | 3157 | static const struct ceph_connection_operations osd_con_ops = { |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 3158 | .get = get_osd_con, |
| 3159 | .put = put_osd_con, |
| 3160 | .dispatch = dispatch, |
Sage Weil | 4e7a5dc | 2009-11-18 16:19:57 -0800 | [diff] [blame] | 3161 | .get_authorizer = get_authorizer, |
| 3162 | .verify_authorizer_reply = verify_authorizer_reply, |
Sage Weil | 9bd2e6f | 2010-02-02 16:21:06 -0800 | [diff] [blame] | 3163 | .invalidate_authorizer = invalidate_authorizer, |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 3164 | .alloc_msg = alloc_msg, |
Ilya Dryomov | 79dbd1b | 2015-10-26 22:23:56 +0100 | [diff] [blame] | 3165 | .sign_message = osd_sign_message, |
| 3166 | .check_message_signature = osd_check_message_signature, |
Ilya Dryomov | 5aea3dc | 2016-04-28 16:07:26 +0200 | [diff] [blame] | 3167 | .fault = osd_fault, |
Sage Weil | f24e998 | 2009-10-06 11:31:10 -0700 | [diff] [blame] | 3168 | }; |