Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1 | /* |
| 2 | * GPL HEADER START |
| 3 | * |
| 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 only, |
| 8 | * as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License version 2 for more details (a copy is included |
| 14 | * in the LICENSE file that accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * version 2 along with this program; If not, see |
| 18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | * |
| 24 | * GPL HEADER END |
| 25 | */ |
| 26 | /* |
| 27 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 28 | * Use is subject to license terms. |
| 29 | * |
| 30 | * Copyright (c) 2011, 2012, Intel Corporation. |
| 31 | */ |
| 32 | /* |
| 33 | * This file is part of Lustre, http://www.lustre.org/ |
| 34 | * Lustre is a trademark of Sun Microsystems, Inc. |
| 35 | * |
| 36 | * lustre/llite/llite_lib.c |
| 37 | * |
| 38 | * Lustre Light Super operations |
| 39 | */ |
| 40 | |
| 41 | #define DEBUG_SUBSYSTEM S_LLITE |
| 42 | |
| 43 | #include <linux/module.h> |
John L. Hammond | a9c7db3 | 2014-08-28 18:35:09 -0500 | [diff] [blame] | 44 | #include <linux/statfs.h> |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 45 | #include <linux/types.h> |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 46 | #include <linux/mm.h> |
| 47 | |
Greg Kroah-Hartman | 67a235f | 2014-07-11 21:51:41 -0700 | [diff] [blame] | 48 | #include "../include/lustre_lite.h" |
| 49 | #include "../include/lustre_ha.h" |
| 50 | #include "../include/lustre_dlm.h" |
| 51 | #include "../include/lprocfs_status.h" |
| 52 | #include "../include/lustre_disk.h" |
| 53 | #include "../include/lustre_param.h" |
| 54 | #include "../include/lustre_log.h" |
| 55 | #include "../include/cl_object.h" |
| 56 | #include "../include/obd_cksum.h" |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 57 | #include "llite_internal.h" |
| 58 | |
| 59 | struct kmem_cache *ll_file_data_slab; |
Peng Tao | 2c185ff | 2013-12-04 01:54:59 +0800 | [diff] [blame] | 60 | struct proc_dir_entry *proc_lustre_fs_root; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 61 | |
John L. Hammond | 2d95f10 | 2014-04-27 13:07:05 -0400 | [diff] [blame] | 62 | static LIST_HEAD(ll_super_blocks); |
| 63 | static DEFINE_SPINLOCK(ll_sb_lock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 64 | |
| 65 | #ifndef log2 |
| 66 | #define log2(n) ffz(~(n)) |
| 67 | #endif |
| 68 | |
| 69 | static struct ll_sb_info *ll_init_sbi(void) |
| 70 | { |
| 71 | struct ll_sb_info *sbi = NULL; |
| 72 | unsigned long pages; |
| 73 | unsigned long lru_page_max; |
| 74 | struct sysinfo si; |
| 75 | class_uuid_t uuid; |
| 76 | int i; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 77 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 78 | sbi = kzalloc(sizeof(*sbi), GFP_NOFS); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 79 | if (!sbi) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 80 | return NULL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 81 | |
| 82 | spin_lock_init(&sbi->ll_lock); |
| 83 | mutex_init(&sbi->ll_lco.lco_lock); |
| 84 | spin_lock_init(&sbi->ll_pp_extent_lock); |
| 85 | spin_lock_init(&sbi->ll_process_lock); |
| 86 | sbi->ll_rw_stats_on = 0; |
| 87 | |
| 88 | si_meminfo(&si); |
| 89 | pages = si.totalram - si.totalhigh; |
| 90 | if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) { |
| 91 | lru_page_max = pages / 2; |
| 92 | } else { |
| 93 | lru_page_max = (pages / 4) * 3; |
| 94 | } |
| 95 | |
Oleg Drokin | c52f69c | 2013-06-03 21:40:43 +0800 | [diff] [blame] | 96 | /* initialize lru data */ |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 97 | atomic_set(&sbi->ll_cache.ccc_users, 0); |
| 98 | sbi->ll_cache.ccc_lru_max = lru_page_max; |
| 99 | atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max); |
| 100 | spin_lock_init(&sbi->ll_cache.ccc_lru_lock); |
| 101 | INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru); |
| 102 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 103 | sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32, |
| 104 | SBI_DEFAULT_READAHEAD_MAX); |
| 105 | sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file; |
| 106 | sbi->ll_ra_info.ra_max_read_ahead_whole_pages = |
| 107 | SBI_DEFAULT_READAHEAD_WHOLE_MAX; |
| 108 | INIT_LIST_HEAD(&sbi->ll_conn_chain); |
| 109 | INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list); |
| 110 | |
| 111 | ll_generate_random_uuid(uuid); |
| 112 | class_uuid_unparse(uuid, &sbi->ll_sb_uuid); |
| 113 | CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid); |
| 114 | |
| 115 | spin_lock(&ll_sb_lock); |
| 116 | list_add_tail(&sbi->ll_list, &ll_super_blocks); |
| 117 | spin_unlock(&ll_sb_lock); |
| 118 | |
| 119 | sbi->ll_flags |= LL_SBI_VERBOSE; |
| 120 | sbi->ll_flags |= LL_SBI_CHECKSUM; |
| 121 | |
| 122 | sbi->ll_flags |= LL_SBI_LRU_RESIZE; |
| 123 | |
| 124 | for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) { |
| 125 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. |
| 126 | pp_r_hist.oh_lock); |
| 127 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. |
| 128 | pp_w_hist.oh_lock); |
| 129 | } |
| 130 | |
| 131 | /* metadata statahead is enabled by default */ |
| 132 | sbi->ll_sa_max = LL_SA_RPC_DEF; |
| 133 | atomic_set(&sbi->ll_sa_total, 0); |
| 134 | atomic_set(&sbi->ll_sa_wrong, 0); |
| 135 | atomic_set(&sbi->ll_agl_total, 0); |
| 136 | sbi->ll_flags |= LL_SBI_AGL_ENABLED; |
| 137 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 138 | return sbi; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 139 | } |
| 140 | |
John L. Hammond | 2d95f10 | 2014-04-27 13:07:05 -0400 | [diff] [blame] | 141 | static void ll_free_sbi(struct super_block *sb) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 142 | { |
| 143 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 144 | |
| 145 | if (sbi != NULL) { |
| 146 | spin_lock(&ll_sb_lock); |
| 147 | list_del(&sbi->ll_list); |
| 148 | spin_unlock(&ll_sb_lock); |
| 149 | OBD_FREE(sbi, sizeof(*sbi)); |
| 150 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 151 | } |
| 152 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 153 | static int client_common_fill_super(struct super_block *sb, char *md, char *dt, |
| 154 | struct vfsmount *mnt) |
| 155 | { |
Radek Dostal | ea7893b | 2014-07-27 23:22:57 +0200 | [diff] [blame] | 156 | struct inode *root = NULL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 157 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
| 158 | struct obd_device *obd; |
| 159 | struct obd_capa *oc = NULL; |
| 160 | struct obd_statfs *osfs = NULL; |
| 161 | struct ptlrpc_request *request = NULL; |
| 162 | struct obd_connect_data *data = NULL; |
| 163 | struct obd_uuid *uuid; |
| 164 | struct md_op_data *op_data; |
| 165 | struct lustre_md lmd; |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 166 | u64 valid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 167 | int size, err, checksum; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 168 | |
| 169 | obd = class_name2obd(md); |
| 170 | if (!obd) { |
| 171 | CERROR("MD %s: not setup or attached\n", md); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 172 | return -EINVAL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 173 | } |
| 174 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 175 | data = kzalloc(sizeof(*data), GFP_NOFS); |
| 176 | if (!data) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 177 | return -ENOMEM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 178 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 179 | osfs = kzalloc(sizeof(*osfs), GFP_NOFS); |
| 180 | if (!osfs) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 181 | OBD_FREE_PTR(data); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 182 | return -ENOMEM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 183 | } |
| 184 | |
| 185 | if (proc_lustre_fs_root) { |
| 186 | err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb, |
| 187 | dt, md); |
| 188 | if (err < 0) |
| 189 | CERROR("could not register mount in /proc/fs/lustre\n"); |
| 190 | } |
| 191 | |
| 192 | /* indicate the features supported by this client */ |
| 193 | data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | |
| 194 | OBD_CONNECT_ATTRFID | |
| 195 | OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE | |
| 196 | OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA | |
| 197 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | |
| 198 | OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 | |
| 199 | OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR | |
| 200 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH| |
| 201 | OBD_CONNECT_EINPROGRESS | |
| 202 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | |
Andrew Perepechko | 7fc1f83 | 2013-12-03 21:58:49 +0800 | [diff] [blame] | 203 | OBD_CONNECT_LAYOUTLOCK | |
Andriy Skulysh | 69342b7 | 2014-01-22 21:36:19 +0800 | [diff] [blame] | 204 | OBD_CONNECT_PINGLESS | |
| 205 | OBD_CONNECT_MAX_EASIZE | |
Hongchao Zhang | 63d4257 | 2014-02-28 21:16:37 -0500 | [diff] [blame] | 206 | OBD_CONNECT_FLOCK_DEAD | |
| 207 | OBD_CONNECT_DISP_STRIPE; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 208 | |
| 209 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) |
| 210 | data->ocd_connect_flags |= OBD_CONNECT_SOM; |
| 211 | |
| 212 | if (sbi->ll_flags & LL_SBI_LRU_RESIZE) |
| 213 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; |
| 214 | #ifdef CONFIG_FS_POSIX_ACL |
| 215 | data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK; |
| 216 | #endif |
| 217 | |
| 218 | if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT)) |
| 219 | /* flag mdc connection as lightweight, only used for test |
| 220 | * purpose, use with care */ |
| 221 | data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT; |
| 222 | |
| 223 | data->ocd_ibits_known = MDS_INODELOCK_FULL; |
| 224 | data->ocd_version = LUSTRE_VERSION_CODE; |
| 225 | |
| 226 | if (sb->s_flags & MS_RDONLY) |
| 227 | data->ocd_connect_flags |= OBD_CONNECT_RDONLY; |
| 228 | if (sbi->ll_flags & LL_SBI_USER_XATTR) |
| 229 | data->ocd_connect_flags |= OBD_CONNECT_XATTR; |
| 230 | |
| 231 | #ifdef HAVE_MS_FLOCK_LOCK |
| 232 | /* force vfs to use lustre handler for flock() calls - bug 10743 */ |
| 233 | sb->s_flags |= MS_FLOCK_LOCK; |
| 234 | #endif |
| 235 | #ifdef MS_HAS_NEW_AOPS |
| 236 | sb->s_flags |= MS_HAS_NEW_AOPS; |
| 237 | #endif |
| 238 | |
| 239 | if (sbi->ll_flags & LL_SBI_FLOCK) |
| 240 | sbi->ll_fop = &ll_file_operations_flock; |
| 241 | else if (sbi->ll_flags & LL_SBI_LOCALFLOCK) |
| 242 | sbi->ll_fop = &ll_file_operations; |
| 243 | else |
| 244 | sbi->ll_fop = &ll_file_operations_noflock; |
| 245 | |
| 246 | /* real client */ |
| 247 | data->ocd_connect_flags |= OBD_CONNECT_REAL; |
| 248 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) |
| 249 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; |
| 250 | |
| 251 | data->ocd_brw_size = MD_MAX_BRW_SIZE; |
| 252 | |
Tina Johnson | e676883 | 2014-10-09 19:30:05 +0530 | [diff] [blame] | 253 | err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, |
| 254 | data, NULL); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 255 | if (err == -EBUSY) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 256 | LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
| 257 | md); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 258 | goto out; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 259 | } else if (err) { |
| 260 | CERROR("cannot connect to %s: rc = %d\n", md, err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 261 | goto out; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 262 | } |
| 263 | |
| 264 | sbi->ll_md_exp->exp_connect_data = *data; |
| 265 | |
| 266 | err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp, |
| 267 | LUSTRE_SEQ_METADATA); |
| 268 | if (err) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 269 | CERROR("%s: Can't init metadata layer FID infrastructure, rc = %d\n", |
| 270 | sbi->ll_md_exp->exp_obd->obd_name, err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 271 | goto out_md; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | /* For mount, we only need fs info from MDT0, and also in DNE, it |
| 275 | * can make sure the client can be mounted as long as MDT0 is |
Masanari Iida | d0a0acc | 2014-03-08 22:58:32 +0900 | [diff] [blame] | 276 | * available */ |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 277 | err = obd_statfs(NULL, sbi->ll_md_exp, osfs, |
| 278 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
| 279 | OBD_STATFS_FOR_MDT0); |
| 280 | if (err) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 281 | goto out_md_fid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 282 | |
| 283 | /* This needs to be after statfs to ensure connect has finished. |
| 284 | * Note that "data" does NOT contain the valid connect reply. |
| 285 | * If connecting to a 1.8 server there will be no LMV device, so |
| 286 | * we can access the MDC export directly and exp_connect_flags will |
| 287 | * be non-zero, but if accessing an upgraded 2.1 server it will |
| 288 | * have the correct flags filled in. |
| 289 | * XXX: fill in the LMV exp_connect_flags from MDC(s). */ |
| 290 | valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD; |
| 291 | if (exp_connect_flags(sbi->ll_md_exp) != 0 && |
| 292 | valid != CLIENT_CONNECT_MDT_REQD) { |
| 293 | char *buf; |
| 294 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 295 | buf = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 296 | obd_connect_flags2str(buf, PAGE_CACHE_SIZE, |
| 297 | valid ^ CLIENT_CONNECT_MDT_REQD, ","); |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 298 | LCONSOLE_ERROR_MSG(0x170, "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 299 | sbi->ll_md_exp->exp_obd->obd_name, buf); |
| 300 | OBD_FREE(buf, PAGE_CACHE_SIZE); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 301 | err = -EPROTO; |
| 302 | goto out_md_fid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | size = sizeof(*data); |
| 306 | err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA), |
| 307 | KEY_CONN_DATA, &size, data, NULL); |
| 308 | if (err) { |
| 309 | CERROR("%s: Get connect data failed: rc = %d\n", |
| 310 | sbi->ll_md_exp->exp_obd->obd_name, err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 311 | goto out_md_fid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | LASSERT(osfs->os_bsize); |
| 315 | sb->s_blocksize = osfs->os_bsize; |
| 316 | sb->s_blocksize_bits = log2(osfs->os_bsize); |
| 317 | sb->s_magic = LL_SUPER_MAGIC; |
| 318 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
| 319 | sbi->ll_namelen = osfs->os_namelen; |
| 320 | sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK; |
| 321 | |
| 322 | if ((sbi->ll_flags & LL_SBI_USER_XATTR) && |
| 323 | !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 324 | LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n"); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 325 | sbi->ll_flags &= ~LL_SBI_USER_XATTR; |
| 326 | } |
| 327 | |
| 328 | if (data->ocd_connect_flags & OBD_CONNECT_ACL) { |
| 329 | #ifdef MS_POSIXACL |
| 330 | sb->s_flags |= MS_POSIXACL; |
| 331 | #endif |
| 332 | sbi->ll_flags |= LL_SBI_ACL; |
| 333 | } else { |
| 334 | LCONSOLE_INFO("client wants to enable acl, but mdt not!\n"); |
| 335 | #ifdef MS_POSIXACL |
| 336 | sb->s_flags &= ~MS_POSIXACL; |
| 337 | #endif |
| 338 | sbi->ll_flags &= ~LL_SBI_ACL; |
| 339 | } |
| 340 | |
| 341 | if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) { |
| 342 | if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) { |
| 343 | sbi->ll_flags |= LL_SBI_RMT_CLIENT; |
| 344 | LCONSOLE_INFO("client is set as remote by default.\n"); |
| 345 | } |
| 346 | } else { |
| 347 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
| 348 | sbi->ll_flags &= ~LL_SBI_RMT_CLIENT; |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 349 | LCONSOLE_INFO("client claims to be remote, but server rejected, forced to be local.\n"); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 350 | } |
| 351 | } |
| 352 | |
| 353 | if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) { |
| 354 | LCONSOLE_INFO("client enabled MDS capability!\n"); |
| 355 | sbi->ll_flags |= LL_SBI_MDS_CAPA; |
| 356 | } |
| 357 | |
| 358 | if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) { |
| 359 | LCONSOLE_INFO("client enabled OSS capability!\n"); |
| 360 | sbi->ll_flags |= LL_SBI_OSS_CAPA; |
| 361 | } |
| 362 | |
| 363 | if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH) |
| 364 | sbi->ll_flags |= LL_SBI_64BIT_HASH; |
| 365 | |
| 366 | if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) |
| 367 | sbi->ll_md_brw_size = data->ocd_brw_size; |
| 368 | else |
| 369 | sbi->ll_md_brw_size = PAGE_CACHE_SIZE; |
| 370 | |
| 371 | if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) { |
| 372 | LCONSOLE_INFO("Layout lock feature supported.\n"); |
| 373 | sbi->ll_flags |= LL_SBI_LAYOUT_LOCK; |
| 374 | } |
| 375 | |
Andrew Perepechko | 7fc1f83 | 2013-12-03 21:58:49 +0800 | [diff] [blame] | 376 | if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) { |
| 377 | if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) { |
| 378 | LCONSOLE_INFO( |
| 379 | "%s: disabling xattr cache due to unknown maximum xattr size.\n", |
| 380 | dt); |
| 381 | } else { |
| 382 | sbi->ll_flags |= LL_SBI_XATTR_CACHE; |
| 383 | sbi->ll_xattr_cache_enabled = 1; |
| 384 | } |
| 385 | } |
| 386 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 387 | obd = class_name2obd(dt); |
| 388 | if (!obd) { |
| 389 | CERROR("DT %s: not setup or attached\n", dt); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 390 | err = -ENODEV; |
| 391 | goto out_md_fid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION | |
| 395 | OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE | |
| 396 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | |
| 397 | OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK| |
| 398 | OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT | |
| 399 | OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR| |
| 400 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH | |
| 401 | OBD_CONNECT_MAXBYTES | |
| 402 | OBD_CONNECT_EINPROGRESS | |
| 403 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | |
| 404 | OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS; |
| 405 | |
| 406 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) |
| 407 | data->ocd_connect_flags |= OBD_CONNECT_SOM; |
| 408 | |
| 409 | if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) { |
| 410 | /* OBD_CONNECT_CKSUM should always be set, even if checksums are |
| 411 | * disabled by default, because it can still be enabled on the |
| 412 | * fly via /proc. As a consequence, we still need to come to an |
| 413 | * agreement on the supported algorithms at connect time */ |
| 414 | data->ocd_connect_flags |= OBD_CONNECT_CKSUM; |
| 415 | |
| 416 | if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY)) |
| 417 | data->ocd_cksum_types = OBD_CKSUM_ADLER; |
| 418 | else |
| 419 | data->ocd_cksum_types = cksum_types_supported_client(); |
| 420 | } |
| 421 | |
| 422 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; |
| 423 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) |
| 424 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; |
| 425 | |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 426 | CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n", |
| 427 | data->ocd_connect_flags, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 428 | data->ocd_version, data->ocd_grant); |
| 429 | |
| 430 | obd->obd_upcall.onu_owner = &sbi->ll_lco; |
| 431 | obd->obd_upcall.onu_upcall = cl_ocd_update; |
| 432 | |
| 433 | data->ocd_brw_size = DT_MAX_BRW_SIZE; |
| 434 | |
| 435 | err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, |
| 436 | NULL); |
| 437 | if (err == -EBUSY) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 438 | LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
| 439 | dt); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 440 | goto out_md; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 441 | } else if (err) { |
| 442 | CERROR("%s: Cannot connect to %s: rc = %d\n", |
| 443 | sbi->ll_dt_exp->exp_obd->obd_name, dt, err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 444 | goto out_md; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | sbi->ll_dt_exp->exp_connect_data = *data; |
| 448 | |
| 449 | err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp, |
| 450 | LUSTRE_SEQ_METADATA); |
| 451 | if (err) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 452 | CERROR("%s: Can't init data layer FID infrastructure, rc = %d\n", |
| 453 | sbi->ll_dt_exp->exp_obd->obd_name, err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 454 | goto out_dt; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | mutex_lock(&sbi->ll_lco.lco_lock); |
| 458 | sbi->ll_lco.lco_flags = data->ocd_connect_flags; |
| 459 | sbi->ll_lco.lco_md_exp = sbi->ll_md_exp; |
| 460 | sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp; |
| 461 | mutex_unlock(&sbi->ll_lco.lco_lock); |
| 462 | |
| 463 | fid_zero(&sbi->ll_root_fid); |
| 464 | err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc); |
| 465 | if (err) { |
| 466 | CERROR("cannot mds_connect: rc = %d\n", err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 467 | goto out_lock_cn_cb; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 468 | } |
| 469 | if (!fid_is_sane(&sbi->ll_root_fid)) { |
| 470 | CERROR("%s: Invalid root fid "DFID" during mount\n", |
| 471 | sbi->ll_md_exp->exp_obd->obd_name, |
| 472 | PFID(&sbi->ll_root_fid)); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 473 | err = -EINVAL; |
| 474 | goto out_lock_cn_cb; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 475 | } |
| 476 | CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid)); |
| 477 | |
| 478 | sb->s_op = &lustre_super_operations; |
| 479 | #if THREAD_SIZE >= 8192 /*b=17630*/ |
| 480 | sb->s_export_op = &lustre_export_operations; |
| 481 | #endif |
| 482 | |
| 483 | /* make root inode |
| 484 | * XXX: move this to after cbd setup? */ |
| 485 | valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA; |
| 486 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) |
| 487 | valid |= OBD_MD_FLRMTPERM; |
| 488 | else if (sbi->ll_flags & LL_SBI_ACL) |
| 489 | valid |= OBD_MD_FLACL; |
| 490 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 491 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
| 492 | if (!op_data) { |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 493 | err = -ENOMEM; |
| 494 | goto out_lock_cn_cb; |
| 495 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 496 | |
| 497 | op_data->op_fid1 = sbi->ll_root_fid; |
| 498 | op_data->op_mode = 0; |
| 499 | op_data->op_capa1 = oc; |
| 500 | op_data->op_valid = valid; |
| 501 | |
| 502 | err = md_getattr(sbi->ll_md_exp, op_data, &request); |
| 503 | if (oc) |
| 504 | capa_put(oc); |
| 505 | OBD_FREE_PTR(op_data); |
| 506 | if (err) { |
| 507 | CERROR("%s: md_getattr failed for root: rc = %d\n", |
| 508 | sbi->ll_md_exp->exp_obd->obd_name, err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 509 | goto out_lock_cn_cb; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 510 | } |
| 511 | |
| 512 | err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, |
| 513 | sbi->ll_md_exp, &lmd); |
| 514 | if (err) { |
| 515 | CERROR("failed to understand root inode md: rc = %d\n", err); |
| 516 | ptlrpc_req_finished(request); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 517 | goto out_lock_cn_cb; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | LASSERT(fid_is_sane(&sbi->ll_root_fid)); |
| 521 | root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, |
wang di | c1e2699 | 2013-06-03 21:40:56 +0800 | [diff] [blame] | 522 | sbi->ll_flags & LL_SBI_32BIT_API), |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 523 | &lmd); |
| 524 | md_free_lustre_md(sbi->ll_md_exp, &lmd); |
| 525 | ptlrpc_req_finished(request); |
| 526 | |
| 527 | if (root == NULL || IS_ERR(root)) { |
| 528 | if (lmd.lsm) |
| 529 | obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm); |
| 530 | #ifdef CONFIG_FS_POSIX_ACL |
| 531 | if (lmd.posix_acl) { |
| 532 | posix_acl_release(lmd.posix_acl); |
| 533 | lmd.posix_acl = NULL; |
| 534 | } |
| 535 | #endif |
| 536 | err = IS_ERR(root) ? PTR_ERR(root) : -EBADF; |
| 537 | root = NULL; |
| 538 | CERROR("lustre_lite: bad iget4 for root\n"); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 539 | goto out_root; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | err = ll_close_thread_start(&sbi->ll_lcq); |
| 543 | if (err) { |
| 544 | CERROR("cannot start close thread: rc %d\n", err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 545 | goto out_root; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | #ifdef CONFIG_FS_POSIX_ACL |
| 549 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
| 550 | rct_init(&sbi->ll_rct); |
| 551 | et_init(&sbi->ll_et); |
| 552 | } |
| 553 | #endif |
| 554 | |
| 555 | checksum = sbi->ll_flags & LL_SBI_CHECKSUM; |
| 556 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), |
| 557 | KEY_CHECKSUM, sizeof(checksum), &checksum, |
| 558 | NULL); |
| 559 | cl_sb_init(sb); |
| 560 | |
| 561 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET), |
| 562 | KEY_CACHE_SET, sizeof(sbi->ll_cache), |
| 563 | &sbi->ll_cache, NULL); |
| 564 | |
| 565 | sb->s_root = d_make_root(root); |
| 566 | if (sb->s_root == NULL) { |
| 567 | CERROR("%s: can't make root dentry\n", |
| 568 | ll_get_fsname(sb, NULL, 0)); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 569 | err = -ENOMEM; |
Greg Kroah-Hartman | caf382f | 2014-09-14 19:33:47 -0700 | [diff] [blame] | 570 | goto out_lock_cn_cb; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 571 | } |
| 572 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 573 | sbi->ll_sdev_orig = sb->s_dev; |
| 574 | |
| 575 | /* We set sb->s_dev equal on all lustre clients in order to support |
| 576 | * NFS export clustering. NFSD requires that the FSID be the same |
| 577 | * on all clients. */ |
| 578 | /* s_dev is also used in lt_compare() to compare two fs, but that is |
| 579 | * only a node-local comparison. */ |
| 580 | uuid = obd_get_uuid(sbi->ll_md_exp); |
Fan Yong | bd99407 | 2013-07-23 00:07:01 +0800 | [diff] [blame] | 581 | if (uuid != NULL) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 582 | sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid)); |
Fan Yong | bd99407 | 2013-07-23 00:07:01 +0800 | [diff] [blame] | 583 | get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid); |
| 584 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 585 | |
| 586 | if (data != NULL) |
| 587 | OBD_FREE_PTR(data); |
| 588 | if (osfs != NULL) |
| 589 | OBD_FREE_PTR(osfs); |
| 590 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 591 | return err; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 592 | out_root: |
Tobias Klauser | ddafd51 | 2014-05-26 11:08:18 +0200 | [diff] [blame] | 593 | iput(root); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 594 | out_lock_cn_cb: |
| 595 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); |
| 596 | out_dt: |
| 597 | obd_disconnect(sbi->ll_dt_exp); |
| 598 | sbi->ll_dt_exp = NULL; |
| 599 | /* Make sure all OScs are gone, since cl_cache is accessing sbi. */ |
| 600 | obd_zombie_barrier(); |
| 601 | out_md_fid: |
| 602 | obd_fid_fini(sbi->ll_md_exp->exp_obd); |
| 603 | out_md: |
| 604 | obd_disconnect(sbi->ll_md_exp); |
| 605 | sbi->ll_md_exp = NULL; |
| 606 | out: |
| 607 | if (data != NULL) |
| 608 | OBD_FREE_PTR(data); |
| 609 | if (osfs != NULL) |
| 610 | OBD_FREE_PTR(osfs); |
| 611 | lprocfs_unregister_mountpoint(sbi); |
| 612 | return err; |
| 613 | } |
| 614 | |
| 615 | int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize) |
| 616 | { |
| 617 | int size, rc; |
| 618 | |
| 619 | *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL); |
| 620 | size = sizeof(int); |
| 621 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE), |
| 622 | KEY_MAX_EASIZE, &size, lmmsize, NULL); |
| 623 | if (rc) |
| 624 | CERROR("Get max mdsize error rc %d \n", rc); |
| 625 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 626 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 627 | } |
| 628 | |
Brian Behlendorf | 4477934 | 2014-04-27 13:06:47 -0400 | [diff] [blame] | 629 | int ll_get_default_mdsize(struct ll_sb_info *sbi, int *lmmsize) |
| 630 | { |
| 631 | int size, rc; |
| 632 | |
| 633 | size = sizeof(int); |
| 634 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_EASIZE), |
| 635 | KEY_DEFAULT_EASIZE, &size, lmmsize, NULL); |
| 636 | if (rc) |
| 637 | CERROR("Get default mdsize error rc %d\n", rc); |
| 638 | |
| 639 | return rc; |
| 640 | } |
| 641 | |
| 642 | int ll_get_max_cookiesize(struct ll_sb_info *sbi, int *lmmsize) |
| 643 | { |
| 644 | int size, rc; |
| 645 | |
| 646 | size = sizeof(int); |
| 647 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_COOKIESIZE), |
| 648 | KEY_MAX_COOKIESIZE, &size, lmmsize, NULL); |
| 649 | if (rc) |
| 650 | CERROR("Get max cookiesize error rc %d\n", rc); |
| 651 | |
| 652 | return rc; |
| 653 | } |
| 654 | |
| 655 | int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *lmmsize) |
| 656 | { |
| 657 | int size, rc; |
| 658 | |
| 659 | size = sizeof(int); |
| 660 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_COOKIESIZE), |
| 661 | KEY_DEFAULT_COOKIESIZE, &size, lmmsize, NULL); |
| 662 | if (rc) |
| 663 | CERROR("Get default cookiesize error rc %d\n", rc); |
| 664 | |
| 665 | return rc; |
| 666 | } |
| 667 | |
John L. Hammond | 2d95f10 | 2014-04-27 13:07:05 -0400 | [diff] [blame] | 668 | static void client_common_put_super(struct super_block *sb) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 669 | { |
| 670 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 671 | |
| 672 | #ifdef CONFIG_FS_POSIX_ACL |
| 673 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
| 674 | et_fini(&sbi->ll_et); |
| 675 | rct_fini(&sbi->ll_rct); |
| 676 | } |
| 677 | #endif |
| 678 | |
| 679 | ll_close_thread_shutdown(sbi->ll_lcq); |
| 680 | |
| 681 | cl_sb_fini(sb); |
| 682 | |
| 683 | list_del(&sbi->ll_conn_chain); |
| 684 | |
| 685 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); |
| 686 | obd_disconnect(sbi->ll_dt_exp); |
| 687 | sbi->ll_dt_exp = NULL; |
| 688 | /* wait till all OSCs are gone, since cl_cache is accessing sbi. |
| 689 | * see LU-2543. */ |
| 690 | obd_zombie_barrier(); |
| 691 | |
| 692 | lprocfs_unregister_mountpoint(sbi); |
| 693 | |
| 694 | obd_fid_fini(sbi->ll_md_exp->exp_obd); |
| 695 | obd_disconnect(sbi->ll_md_exp); |
| 696 | sbi->ll_md_exp = NULL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 697 | } |
| 698 | |
| 699 | void ll_kill_super(struct super_block *sb) |
| 700 | { |
| 701 | struct ll_sb_info *sbi; |
| 702 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 703 | /* not init sb ?*/ |
| 704 | if (!(sb->s_flags & MS_ACTIVE)) |
| 705 | return; |
| 706 | |
| 707 | sbi = ll_s2sbi(sb); |
Tina Johnson | e676883 | 2014-10-09 19:30:05 +0530 | [diff] [blame] | 708 | /* we need to restore s_dev from changed for clustered NFS before |
| 709 | * put_super because new kernels have cached s_dev and change sb->s_dev |
| 710 | * in put_super not affected real removing devices */ |
Niu Yawei | 65fb55d | 2013-06-03 21:40:38 +0800 | [diff] [blame] | 711 | if (sbi) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 712 | sb->s_dev = sbi->ll_sdev_orig; |
Niu Yawei | 65fb55d | 2013-06-03 21:40:38 +0800 | [diff] [blame] | 713 | sbi->ll_umounting = 1; |
| 714 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 715 | } |
| 716 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 717 | static inline int ll_set_opt(const char *opt, char *data, int fl) |
| 718 | { |
| 719 | if (strncmp(opt, data, strlen(opt)) != 0) |
Julia Lawall | fbe7c6c | 2014-08-26 22:00:33 +0200 | [diff] [blame] | 720 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 721 | else |
Julia Lawall | fbe7c6c | 2014-08-26 22:00:33 +0200 | [diff] [blame] | 722 | return fl; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | /* non-client-specific mount options are parsed in lmd_parse */ |
| 726 | static int ll_options(char *options, int *flags) |
| 727 | { |
| 728 | int tmp; |
| 729 | char *s1 = options, *s2; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 730 | |
| 731 | if (!options) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 732 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 733 | |
| 734 | CDEBUG(D_CONFIG, "Parsing opts %s\n", options); |
| 735 | |
| 736 | while (*s1) { |
| 737 | CDEBUG(D_SUPER, "next opt=%s\n", s1); |
| 738 | tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK); |
| 739 | if (tmp) { |
| 740 | *flags |= tmp; |
| 741 | goto next; |
| 742 | } |
| 743 | tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK); |
| 744 | if (tmp) { |
| 745 | *flags |= tmp; |
| 746 | goto next; |
| 747 | } |
| 748 | tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK); |
| 749 | if (tmp) { |
| 750 | *flags |= tmp; |
| 751 | goto next; |
| 752 | } |
| 753 | tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK); |
| 754 | if (tmp) { |
| 755 | *flags &= ~tmp; |
| 756 | goto next; |
| 757 | } |
| 758 | tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR); |
| 759 | if (tmp) { |
| 760 | *flags |= tmp; |
| 761 | goto next; |
| 762 | } |
| 763 | tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR); |
| 764 | if (tmp) { |
| 765 | *flags &= ~tmp; |
| 766 | goto next; |
| 767 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 768 | tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT); |
| 769 | if (tmp) { |
| 770 | *flags |= tmp; |
| 771 | goto next; |
| 772 | } |
| 773 | tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH); |
| 774 | if (tmp) { |
| 775 | *flags |= tmp; |
| 776 | goto next; |
| 777 | } |
| 778 | tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH); |
| 779 | if (tmp) { |
| 780 | *flags &= ~tmp; |
| 781 | goto next; |
| 782 | } |
| 783 | |
| 784 | tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM); |
| 785 | if (tmp) { |
| 786 | *flags |= tmp; |
| 787 | goto next; |
| 788 | } |
| 789 | tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM); |
| 790 | if (tmp) { |
| 791 | *flags &= ~tmp; |
| 792 | goto next; |
| 793 | } |
| 794 | tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE); |
| 795 | if (tmp) { |
| 796 | *flags |= tmp; |
| 797 | goto next; |
| 798 | } |
| 799 | tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE); |
| 800 | if (tmp) { |
| 801 | *flags &= ~tmp; |
| 802 | goto next; |
| 803 | } |
| 804 | tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS); |
| 805 | if (tmp) { |
| 806 | *flags |= tmp; |
| 807 | goto next; |
| 808 | } |
| 809 | tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS); |
| 810 | if (tmp) { |
| 811 | *flags &= ~tmp; |
| 812 | goto next; |
| 813 | } |
| 814 | tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW); |
| 815 | if (tmp) { |
| 816 | *flags |= tmp; |
| 817 | goto next; |
| 818 | } |
| 819 | tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API); |
| 820 | if (tmp) { |
| 821 | *flags |= tmp; |
| 822 | goto next; |
| 823 | } |
| 824 | tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE); |
| 825 | if (tmp) { |
| 826 | *flags |= tmp; |
| 827 | goto next; |
| 828 | } |
| 829 | tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE); |
| 830 | if (tmp) { |
| 831 | *flags &= ~tmp; |
| 832 | goto next; |
| 833 | } |
| 834 | LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n", |
| 835 | s1); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 836 | return -EINVAL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 837 | |
| 838 | next: |
| 839 | /* Find next opt */ |
| 840 | s2 = strchr(s1, ','); |
| 841 | if (s2 == NULL) |
| 842 | break; |
| 843 | s1 = s2 + 1; |
| 844 | } |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 845 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 846 | } |
| 847 | |
| 848 | void ll_lli_init(struct ll_inode_info *lli) |
| 849 | { |
| 850 | lli->lli_inode_magic = LLI_INODE_MAGIC; |
| 851 | lli->lli_flags = 0; |
| 852 | lli->lli_ioepoch = 0; |
| 853 | lli->lli_maxbytes = MAX_LFS_FILESIZE; |
| 854 | spin_lock_init(&lli->lli_lock); |
| 855 | lli->lli_posix_acl = NULL; |
| 856 | lli->lli_remote_perms = NULL; |
| 857 | mutex_init(&lli->lli_rmtperm_mutex); |
| 858 | /* Do not set lli_fid, it has been initialized already. */ |
| 859 | fid_zero(&lli->lli_pfid); |
| 860 | INIT_LIST_HEAD(&lli->lli_close_list); |
| 861 | INIT_LIST_HEAD(&lli->lli_oss_capas); |
| 862 | atomic_set(&lli->lli_open_count, 0); |
| 863 | lli->lli_mds_capa = NULL; |
| 864 | lli->lli_rmtperm_time = 0; |
| 865 | lli->lli_pending_och = NULL; |
| 866 | lli->lli_mds_read_och = NULL; |
| 867 | lli->lli_mds_write_och = NULL; |
| 868 | lli->lli_mds_exec_och = NULL; |
| 869 | lli->lli_open_fd_read_count = 0; |
| 870 | lli->lli_open_fd_write_count = 0; |
| 871 | lli->lli_open_fd_exec_count = 0; |
| 872 | mutex_init(&lli->lli_och_mutex); |
| 873 | spin_lock_init(&lli->lli_agl_lock); |
| 874 | lli->lli_has_smd = false; |
Jinshan Xiong | 09aed8a | 2014-04-27 13:06:50 -0400 | [diff] [blame] | 875 | spin_lock_init(&lli->lli_layout_lock); |
| 876 | ll_layout_version_set(lli, LL_LAYOUT_GEN_NONE); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 877 | lli->lli_clob = NULL; |
| 878 | |
Andrew Perepechko | 7fc1f83 | 2013-12-03 21:58:49 +0800 | [diff] [blame] | 879 | init_rwsem(&lli->lli_xattrs_list_rwsem); |
| 880 | mutex_init(&lli->lli_xattrs_enq_lock); |
| 881 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 882 | LASSERT(lli->lli_vfs_inode.i_mode != 0); |
| 883 | if (S_ISDIR(lli->lli_vfs_inode.i_mode)) { |
| 884 | mutex_init(&lli->lli_readdir_mutex); |
| 885 | lli->lli_opendir_key = NULL; |
| 886 | lli->lli_sai = NULL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 887 | spin_lock_init(&lli->lli_sa_lock); |
| 888 | lli->lli_opendir_pid = 0; |
| 889 | } else { |
Dmitry Eremin | 47a57bd | 2014-04-27 13:07:00 -0400 | [diff] [blame] | 890 | mutex_init(&lli->lli_size_mutex); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 891 | lli->lli_symlink_name = NULL; |
| 892 | init_rwsem(&lli->lli_trunc_sem); |
| 893 | mutex_init(&lli->lli_write_mutex); |
| 894 | init_rwsem(&lli->lli_glimpse_sem); |
| 895 | lli->lli_glimpse_time = 0; |
| 896 | INIT_LIST_HEAD(&lli->lli_agl_list); |
| 897 | lli->lli_agl_index = 0; |
| 898 | lli->lli_async_rc = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 899 | } |
| 900 | mutex_init(&lli->lli_layout_mutex); |
| 901 | } |
| 902 | |
| 903 | static inline int ll_bdi_register(struct backing_dev_info *bdi) |
| 904 | { |
| 905 | static atomic_t ll_bdi_num = ATOMIC_INIT(0); |
| 906 | |
| 907 | bdi->name = "lustre"; |
| 908 | return bdi_register(bdi, NULL, "lustre-%d", |
| 909 | atomic_inc_return(&ll_bdi_num)); |
| 910 | } |
| 911 | |
| 912 | int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) |
| 913 | { |
| 914 | struct lustre_profile *lprof = NULL; |
| 915 | struct lustre_sb_info *lsi = s2lsi(sb); |
| 916 | struct ll_sb_info *sbi; |
| 917 | char *dt = NULL, *md = NULL; |
| 918 | char *profilenm = get_profile_name(sb); |
| 919 | struct config_llog_instance *cfg; |
| 920 | /* %p for void* in printf needs 16+2 characters: 0xffffffffffffffff */ |
| 921 | const int instlen = sizeof(cfg->cfg_instance) * 2 + 2; |
| 922 | int err; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 923 | |
| 924 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); |
| 925 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 926 | cfg = kzalloc(sizeof(*cfg), GFP_NOFS); |
| 927 | if (!cfg) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 928 | return -ENOMEM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 929 | |
| 930 | try_module_get(THIS_MODULE); |
| 931 | |
| 932 | /* client additional sb info */ |
| 933 | lsi->lsi_llsbi = sbi = ll_init_sbi(); |
| 934 | if (!sbi) { |
| 935 | module_put(THIS_MODULE); |
| 936 | OBD_FREE_PTR(cfg); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 937 | return -ENOMEM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 938 | } |
| 939 | |
| 940 | err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags); |
| 941 | if (err) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 942 | goto out_free; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 943 | |
| 944 | err = bdi_init(&lsi->lsi_bdi); |
| 945 | if (err) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 946 | goto out_free; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 947 | lsi->lsi_flags |= LSI_BDI_INITIALIZED; |
Christoph Hellwig | b4caecd | 2015-01-14 10:42:32 +0100 | [diff] [blame] | 948 | lsi->lsi_bdi.capabilities = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 949 | err = ll_bdi_register(&lsi->lsi_bdi); |
| 950 | if (err) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 951 | goto out_free; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 952 | |
| 953 | sb->s_bdi = &lsi->lsi_bdi; |
Lai Siyao | 3ea8f3b | 2014-01-22 21:36:12 +0800 | [diff] [blame] | 954 | /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */ |
| 955 | sb->s_d_op = &ll_d_ops; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 956 | |
| 957 | /* Generate a string unique to this super, in case some joker tries |
| 958 | to mount the same fs at two mount points. |
| 959 | Use the address of the super itself.*/ |
| 960 | cfg->cfg_instance = sb; |
| 961 | cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid; |
| 962 | cfg->cfg_callback = class_config_llog_handler; |
| 963 | /* set up client obds */ |
| 964 | err = lustre_process_log(sb, profilenm, cfg); |
| 965 | if (err < 0) { |
| 966 | CERROR("Unable to process log: %d\n", err); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 967 | goto out_free; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 968 | } |
| 969 | |
| 970 | /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */ |
| 971 | lprof = class_get_profile(profilenm); |
| 972 | if (lprof == NULL) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 973 | LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS. Does that filesystem exist?\n", |
| 974 | profilenm); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 975 | err = -EINVAL; |
| 976 | goto out_free; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 977 | } |
| 978 | CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm, |
| 979 | lprof->lp_md, lprof->lp_dt); |
| 980 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 981 | dt = kzalloc(strlen(lprof->lp_dt) + instlen + 2, GFP_NOFS); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 982 | if (!dt) { |
| 983 | err = -ENOMEM; |
| 984 | goto out_free; |
| 985 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 986 | sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance); |
| 987 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 988 | md = kzalloc(strlen(lprof->lp_md) + instlen + 2, GFP_NOFS); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 989 | if (!md) { |
| 990 | err = -ENOMEM; |
| 991 | goto out_free; |
| 992 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 993 | sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance); |
| 994 | |
| 995 | /* connections, registrations, sb setup */ |
| 996 | err = client_common_fill_super(sb, md, dt, mnt); |
| 997 | |
| 998 | out_free: |
| 999 | if (md) |
| 1000 | OBD_FREE(md, strlen(lprof->lp_md) + instlen + 2); |
| 1001 | if (dt) |
| 1002 | OBD_FREE(dt, strlen(lprof->lp_dt) + instlen + 2); |
| 1003 | if (err) |
| 1004 | ll_put_super(sb); |
| 1005 | else if (sbi->ll_flags & LL_SBI_VERBOSE) |
| 1006 | LCONSOLE_WARN("Mounted %s\n", profilenm); |
| 1007 | |
| 1008 | OBD_FREE_PTR(cfg); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1009 | return err; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1010 | } /* ll_fill_super */ |
| 1011 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1012 | void ll_put_super(struct super_block *sb) |
| 1013 | { |
Artem Blagodarenko | 7d4bae4 | 2014-01-22 21:36:16 +0800 | [diff] [blame] | 1014 | struct config_llog_instance cfg, params_cfg; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1015 | struct obd_device *obd; |
| 1016 | struct lustre_sb_info *lsi = s2lsi(sb); |
| 1017 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
| 1018 | char *profilenm = get_profile_name(sb); |
Oleg Drokin | c52f69c | 2013-06-03 21:40:43 +0800 | [diff] [blame] | 1019 | int next, force = 1; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1020 | |
| 1021 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm); |
| 1022 | |
| 1023 | ll_print_capa_stat(sbi); |
| 1024 | |
| 1025 | cfg.cfg_instance = sb; |
| 1026 | lustre_end_log(sb, profilenm, &cfg); |
| 1027 | |
Artem Blagodarenko | 7d4bae4 | 2014-01-22 21:36:16 +0800 | [diff] [blame] | 1028 | params_cfg.cfg_instance = sb; |
| 1029 | lustre_end_log(sb, PARAMS_FILENAME, ¶ms_cfg); |
| 1030 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1031 | if (sbi->ll_md_exp) { |
| 1032 | obd = class_exp2obd(sbi->ll_md_exp); |
| 1033 | if (obd) |
| 1034 | force = obd->obd_force; |
| 1035 | } |
| 1036 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1037 | /* We need to set force before the lov_disconnect in |
| 1038 | lustre_common_put_super, since l_d cleans up osc's as well. */ |
| 1039 | if (force) { |
| 1040 | next = 0; |
| 1041 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, |
| 1042 | &next)) != NULL) { |
| 1043 | obd->obd_force = force; |
| 1044 | } |
| 1045 | } |
| 1046 | |
| 1047 | if (sbi->ll_lcq) { |
| 1048 | /* Only if client_common_fill_super succeeded */ |
| 1049 | client_common_put_super(sb); |
| 1050 | } |
| 1051 | |
| 1052 | next = 0; |
Tina Johnson | a15dbf9 | 2014-10-08 12:20:23 +0530 | [diff] [blame] | 1053 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next))) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1054 | class_manual_cleanup(obd); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1055 | |
| 1056 | if (sbi->ll_flags & LL_SBI_VERBOSE) |
| 1057 | LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : ""); |
| 1058 | |
| 1059 | if (profilenm) |
| 1060 | class_del_profile(profilenm); |
| 1061 | |
| 1062 | if (lsi->lsi_flags & LSI_BDI_INITIALIZED) { |
| 1063 | bdi_destroy(&lsi->lsi_bdi); |
| 1064 | lsi->lsi_flags &= ~LSI_BDI_INITIALIZED; |
| 1065 | } |
| 1066 | |
| 1067 | ll_free_sbi(sb); |
| 1068 | lsi->lsi_llsbi = NULL; |
| 1069 | |
| 1070 | lustre_common_put_super(sb); |
| 1071 | |
| 1072 | module_put(THIS_MODULE); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1073 | } /* client_put_super */ |
| 1074 | |
| 1075 | struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock) |
| 1076 | { |
| 1077 | struct inode *inode = NULL; |
| 1078 | |
| 1079 | /* NOTE: we depend on atomic igrab() -bzzz */ |
| 1080 | lock_res_and_lock(lock); |
| 1081 | if (lock->l_resource->lr_lvb_inode) { |
Greg Donald | aff9d8e | 2014-08-21 11:07:42 -0500 | [diff] [blame] | 1082 | struct ll_inode_info *lli; |
Tina Johnson | cf29a7b | 2014-10-08 00:42:05 +0530 | [diff] [blame] | 1083 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1084 | lli = ll_i2info(lock->l_resource->lr_lvb_inode); |
| 1085 | if (lli->lli_inode_magic == LLI_INODE_MAGIC) { |
| 1086 | inode = igrab(lock->l_resource->lr_lvb_inode); |
| 1087 | } else { |
| 1088 | inode = lock->l_resource->lr_lvb_inode; |
| 1089 | LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO : |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 1090 | D_WARNING, lock, "lr_lvb_inode %p is bogus: magic %08x", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1091 | lock->l_resource->lr_lvb_inode, |
| 1092 | lli->lli_inode_magic); |
| 1093 | inode = NULL; |
| 1094 | } |
| 1095 | } |
| 1096 | unlock_res_and_lock(lock); |
| 1097 | return inode; |
| 1098 | } |
| 1099 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1100 | void ll_clear_inode(struct inode *inode) |
| 1101 | { |
| 1102 | struct ll_inode_info *lli = ll_i2info(inode); |
| 1103 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1104 | |
| 1105 | CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, |
| 1106 | inode->i_generation, inode); |
| 1107 | |
| 1108 | if (S_ISDIR(inode->i_mode)) { |
| 1109 | /* these should have been cleared in ll_file_release */ |
| 1110 | LASSERT(lli->lli_opendir_key == NULL); |
| 1111 | LASSERT(lli->lli_sai == NULL); |
| 1112 | LASSERT(lli->lli_opendir_pid == 0); |
| 1113 | } |
| 1114 | |
Sebastien Buisson | ae5ef67 | 2013-07-25 01:17:27 +0800 | [diff] [blame] | 1115 | spin_lock(&lli->lli_lock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1116 | ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK; |
Sebastien Buisson | ae5ef67 | 2013-07-25 01:17:27 +0800 | [diff] [blame] | 1117 | spin_unlock(&lli->lli_lock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1118 | md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode)); |
| 1119 | |
| 1120 | LASSERT(!lli->lli_open_fd_write_count); |
| 1121 | LASSERT(!lli->lli_open_fd_read_count); |
| 1122 | LASSERT(!lli->lli_open_fd_exec_count); |
| 1123 | |
| 1124 | if (lli->lli_mds_write_och) |
| 1125 | ll_md_real_close(inode, FMODE_WRITE); |
| 1126 | if (lli->lli_mds_exec_och) |
| 1127 | ll_md_real_close(inode, FMODE_EXEC); |
| 1128 | if (lli->lli_mds_read_och) |
| 1129 | ll_md_real_close(inode, FMODE_READ); |
| 1130 | |
| 1131 | if (S_ISLNK(inode->i_mode) && lli->lli_symlink_name) { |
| 1132 | OBD_FREE(lli->lli_symlink_name, |
| 1133 | strlen(lli->lli_symlink_name) + 1); |
| 1134 | lli->lli_symlink_name = NULL; |
| 1135 | } |
| 1136 | |
Andrew Perepechko | 7fc1f83 | 2013-12-03 21:58:49 +0800 | [diff] [blame] | 1137 | ll_xattr_cache_destroy(inode); |
| 1138 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1139 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
| 1140 | LASSERT(lli->lli_posix_acl == NULL); |
| 1141 | if (lli->lli_remote_perms) { |
| 1142 | free_rmtperm_hash(lli->lli_remote_perms); |
| 1143 | lli->lli_remote_perms = NULL; |
| 1144 | } |
| 1145 | } |
| 1146 | #ifdef CONFIG_FS_POSIX_ACL |
| 1147 | else if (lli->lli_posix_acl) { |
| 1148 | LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); |
| 1149 | LASSERT(lli->lli_remote_perms == NULL); |
| 1150 | posix_acl_release(lli->lli_posix_acl); |
| 1151 | lli->lli_posix_acl = NULL; |
| 1152 | } |
| 1153 | #endif |
| 1154 | lli->lli_inode_magic = LLI_INODE_DEAD; |
| 1155 | |
| 1156 | ll_clear_inode_capas(inode); |
| 1157 | if (!S_ISDIR(inode->i_mode)) |
| 1158 | LASSERT(list_empty(&lli->lli_agl_list)); |
| 1159 | |
| 1160 | /* |
| 1161 | * XXX This has to be done before lsm is freed below, because |
| 1162 | * cl_object still uses inode lsm. |
| 1163 | */ |
| 1164 | cl_inode_fini(inode); |
| 1165 | lli->lli_has_smd = false; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1166 | } |
| 1167 | |
Ramon Fried | 3d3ab8c | 2014-09-25 21:05:06 +0300 | [diff] [blame] | 1168 | static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1169 | struct md_open_data **mod) |
| 1170 | { |
| 1171 | struct lustre_md md; |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame^] | 1172 | struct inode *inode = d_inode(dentry); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1173 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
| 1174 | struct ptlrpc_request *request = NULL; |
| 1175 | int rc, ia_valid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1176 | |
| 1177 | op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, |
| 1178 | LUSTRE_OPC_ANY, NULL); |
| 1179 | if (IS_ERR(op_data)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1180 | return PTR_ERR(op_data); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1181 | |
| 1182 | rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0, |
| 1183 | &request, mod); |
| 1184 | if (rc) { |
| 1185 | ptlrpc_req_finished(request); |
| 1186 | if (rc == -ENOENT) { |
| 1187 | clear_nlink(inode); |
| 1188 | /* Unlinked special device node? Or just a race? |
| 1189 | * Pretend we done everything. */ |
| 1190 | if (!S_ISREG(inode->i_mode) && |
| 1191 | !S_ISDIR(inode->i_mode)) { |
| 1192 | ia_valid = op_data->op_attr.ia_valid; |
| 1193 | op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS; |
| 1194 | rc = simple_setattr(dentry, &op_data->op_attr); |
| 1195 | op_data->op_attr.ia_valid = ia_valid; |
| 1196 | } |
| 1197 | } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) { |
| 1198 | CERROR("md_setattr fails: rc = %d\n", rc); |
| 1199 | } |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1200 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1201 | } |
| 1202 | |
| 1203 | rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, |
| 1204 | sbi->ll_md_exp, &md); |
| 1205 | if (rc) { |
| 1206 | ptlrpc_req_finished(request); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1207 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1208 | } |
| 1209 | |
John L. Hammond | 251c431 | 2013-07-23 00:06:51 +0800 | [diff] [blame] | 1210 | ia_valid = op_data->op_attr.ia_valid; |
| 1211 | /* inode size will be in ll_setattr_ost, can't do it now since dirty |
| 1212 | * cache is not cleared yet. */ |
| 1213 | op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE); |
| 1214 | rc = simple_setattr(dentry, &op_data->op_attr); |
| 1215 | op_data->op_attr.ia_valid = ia_valid; |
| 1216 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1217 | /* Extract epoch data if obtained. */ |
| 1218 | op_data->op_handle = md.body->handle; |
| 1219 | op_data->op_ioepoch = md.body->ioepoch; |
| 1220 | |
| 1221 | ll_update_inode(inode, &md); |
| 1222 | ptlrpc_req_finished(request); |
| 1223 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1224 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1225 | } |
| 1226 | |
| 1227 | /* Close IO epoch and send Size-on-MDS attribute update. */ |
| 1228 | static int ll_setattr_done_writing(struct inode *inode, |
| 1229 | struct md_op_data *op_data, |
| 1230 | struct md_open_data *mod) |
| 1231 | { |
| 1232 | struct ll_inode_info *lli = ll_i2info(inode); |
| 1233 | int rc = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1234 | |
| 1235 | LASSERT(op_data != NULL); |
| 1236 | if (!S_ISREG(inode->i_mode)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1237 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1238 | |
Greg Kroah-Hartman | b0f5aad | 2014-07-12 20:06:04 -0700 | [diff] [blame] | 1239 | CDEBUG(D_INODE, "Epoch %llu closed on "DFID" for truncate\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1240 | op_data->op_ioepoch, PFID(&lli->lli_fid)); |
| 1241 | |
| 1242 | op_data->op_flags = MF_EPOCH_CLOSE; |
| 1243 | ll_done_writing_attr(inode, op_data); |
| 1244 | ll_pack_inode2opdata(inode, op_data, NULL); |
| 1245 | |
| 1246 | rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod); |
| 1247 | if (rc == -EAGAIN) { |
| 1248 | /* MDS has instructed us to obtain Size-on-MDS attribute |
| 1249 | * from OSTs and send setattr to back to MDS. */ |
| 1250 | rc = ll_som_update(inode, op_data); |
| 1251 | } else if (rc) { |
| 1252 | CERROR("inode %lu mdc truncate failed: rc = %d\n", |
| 1253 | inode->i_ino, rc); |
| 1254 | } |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1255 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1256 | } |
| 1257 | |
| 1258 | static int ll_setattr_ost(struct inode *inode, struct iattr *attr) |
| 1259 | { |
| 1260 | struct obd_capa *capa; |
| 1261 | int rc; |
| 1262 | |
| 1263 | if (attr->ia_valid & ATTR_SIZE) |
| 1264 | capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC); |
| 1265 | else |
| 1266 | capa = ll_mdscapa_get(inode); |
| 1267 | |
| 1268 | rc = cl_setattr_ost(inode, attr, capa); |
| 1269 | |
| 1270 | if (attr->ia_valid & ATTR_SIZE) |
| 1271 | ll_truncate_free_capa(capa); |
| 1272 | else |
| 1273 | capa_put(capa); |
| 1274 | |
| 1275 | return rc; |
| 1276 | } |
| 1277 | |
| 1278 | |
| 1279 | /* If this inode has objects allocated to it (lsm != NULL), then the OST |
| 1280 | * object(s) determine the file size and mtime. Otherwise, the MDS will |
| 1281 | * keep these values until such a time that objects are allocated for it. |
| 1282 | * We do the MDS operations first, as it is checking permissions for us. |
| 1283 | * We don't to the MDS RPC if there is nothing that we want to store there, |
| 1284 | * otherwise there is no harm in updating mtime/atime on the MDS if we are |
| 1285 | * going to do an RPC anyways. |
| 1286 | * |
| 1287 | * If we are doing a truncate, we will send the mtime and ctime updates |
| 1288 | * to the OST with the punch RPC, otherwise we do an explicit setattr RPC. |
| 1289 | * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE |
| 1290 | * at the same time. |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1291 | * |
| 1292 | * In case of HSMimport, we only set attr on MDS. |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1293 | */ |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1294 | int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1295 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame^] | 1296 | struct inode *inode = d_inode(dentry); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1297 | struct ll_inode_info *lli = ll_i2info(inode); |
| 1298 | struct md_op_data *op_data = NULL; |
| 1299 | struct md_open_data *mod = NULL; |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1300 | bool file_is_released = false; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1301 | int rc = 0, rc1 = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1302 | |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1303 | CDEBUG(D_VFSTRACE, |
| 1304 | "%s: setattr inode %p/fid:"DFID |
| 1305 | " from %llu to %llu, valid %x, hsm_import %d\n", |
| 1306 | ll_get_fsname(inode->i_sb, NULL, 0), inode, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1307 | PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size, |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1308 | attr->ia_valid, hsm_import); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1309 | |
| 1310 | if (attr->ia_valid & ATTR_SIZE) { |
| 1311 | /* Check new size against VFS/VM file size limit and rlimit */ |
| 1312 | rc = inode_newsize_ok(inode, attr->ia_size); |
| 1313 | if (rc) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1314 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1315 | |
| 1316 | /* The maximum Lustre file size is variable, based on the |
| 1317 | * OST maximum object size and number of stripes. This |
| 1318 | * needs another check in addition to the VFS check above. */ |
| 1319 | if (attr->ia_size > ll_file_maxbytes(inode)) { |
Greg Donald | 1d8cb70 | 2014-08-25 20:07:19 -0500 | [diff] [blame] | 1320 | CDEBUG(D_INODE, "file "DFID" too large %llu > %llu\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1321 | PFID(&lli->lli_fid), attr->ia_size, |
| 1322 | ll_file_maxbytes(inode)); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1323 | return -EFBIG; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1324 | } |
| 1325 | |
| 1326 | attr->ia_valid |= ATTR_MTIME | ATTR_CTIME; |
| 1327 | } |
| 1328 | |
| 1329 | /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */ |
| 1330 | if (attr->ia_valid & TIMES_SET_FLAGS) { |
Peng Tao | 4b1a25f | 2013-07-15 22:27:14 +0800 | [diff] [blame] | 1331 | if ((!uid_eq(current_fsuid(), inode->i_uid)) && |
Peng Tao | 2eb90a7 | 2014-01-22 21:47:37 +0800 | [diff] [blame] | 1332 | !capable(CFS_CAP_FOWNER)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1333 | return -EPERM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1334 | } |
| 1335 | |
| 1336 | /* We mark all of the fields "set" so MDS/OST does not re-set them */ |
| 1337 | if (attr->ia_valid & ATTR_CTIME) { |
Greg Kroah-Hartman | 0f1c743 | 2013-07-24 10:11:47 -0700 | [diff] [blame] | 1338 | attr->ia_ctime = CURRENT_TIME; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1339 | attr->ia_valid |= ATTR_CTIME_SET; |
| 1340 | } |
| 1341 | if (!(attr->ia_valid & ATTR_ATIME_SET) && |
| 1342 | (attr->ia_valid & ATTR_ATIME)) { |
Greg Kroah-Hartman | 0f1c743 | 2013-07-24 10:11:47 -0700 | [diff] [blame] | 1343 | attr->ia_atime = CURRENT_TIME; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1344 | attr->ia_valid |= ATTR_ATIME_SET; |
| 1345 | } |
| 1346 | if (!(attr->ia_valid & ATTR_MTIME_SET) && |
| 1347 | (attr->ia_valid & ATTR_MTIME)) { |
Greg Kroah-Hartman | 0f1c743 | 2013-07-24 10:11:47 -0700 | [diff] [blame] | 1348 | attr->ia_mtime = CURRENT_TIME; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1349 | attr->ia_valid |= ATTR_MTIME_SET; |
| 1350 | } |
| 1351 | |
| 1352 | if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME)) |
| 1353 | CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n", |
| 1354 | LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime), |
Greg Kroah-Hartman | 7264b8a | 2014-07-12 00:38:48 -0700 | [diff] [blame] | 1355 | get_seconds()); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1356 | |
| 1357 | /* If we are changing file size, file content is modified, flag it. */ |
| 1358 | if (attr->ia_valid & ATTR_SIZE) { |
| 1359 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; |
| 1360 | spin_lock(&lli->lli_lock); |
| 1361 | lli->lli_flags |= LLIF_DATA_MODIFIED; |
| 1362 | spin_unlock(&lli->lli_lock); |
| 1363 | } |
| 1364 | |
| 1365 | /* We always do an MDS RPC, even if we're only changing the size; |
| 1366 | * only the MDS knows whether truncate() should fail with -ETXTBUSY */ |
| 1367 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 1368 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
| 1369 | if (!op_data) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1370 | return -ENOMEM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1371 | |
| 1372 | if (!S_ISDIR(inode->i_mode)) { |
| 1373 | if (attr->ia_valid & ATTR_SIZE) |
| 1374 | inode_dio_write_done(inode); |
| 1375 | mutex_unlock(&inode->i_mutex); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1376 | } |
| 1377 | |
| 1378 | memcpy(&op_data->op_attr, attr, sizeof(*attr)); |
| 1379 | |
| 1380 | /* Open epoch for truncate. */ |
| 1381 | if (exp_connect_som(ll_i2mdexp(inode)) && |
| 1382 | (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET))) |
| 1383 | op_data->op_flags = MF_EPOCH_OPEN; |
| 1384 | |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1385 | /* truncate on a released file must failed with -ENODATA, |
| 1386 | * so size must not be set on MDS for released file |
| 1387 | * but other attributes must be set |
| 1388 | */ |
| 1389 | if (S_ISREG(inode->i_mode)) { |
| 1390 | struct lov_stripe_md *lsm; |
| 1391 | __u32 gen; |
| 1392 | |
| 1393 | ll_layout_refresh(inode, &gen); |
| 1394 | lsm = ccc_inode_lsm_get(inode); |
| 1395 | if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED) |
| 1396 | file_is_released = true; |
| 1397 | ccc_inode_lsm_put(inode, lsm); |
| 1398 | } |
| 1399 | |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1400 | /* if not in HSM import mode, clear size attr for released file |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1401 | * we clear the attribute send to MDT in op_data, not the original |
| 1402 | * received from caller in attr which is used later to |
| 1403 | * decide return code */ |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1404 | if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import) |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1405 | op_data->op_attr.ia_valid &= ~ATTR_SIZE; |
| 1406 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1407 | rc = ll_md_setattr(dentry, op_data, &mod); |
| 1408 | if (rc) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 1409 | goto out; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1410 | |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1411 | /* truncate failed (only when non HSM import), others succeed */ |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1412 | if (file_is_released) { |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1413 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 1414 | rc = -ENODATA; |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1415 | else |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 1416 | rc = 0; |
| 1417 | goto out; |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1418 | } |
| 1419 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1420 | /* RPC to MDT is sent, cancel data modification flag */ |
| 1421 | if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) { |
| 1422 | spin_lock(&lli->lli_lock); |
| 1423 | lli->lli_flags &= ~LLIF_DATA_MODIFIED; |
| 1424 | spin_unlock(&lli->lli_lock); |
| 1425 | } |
| 1426 | |
| 1427 | ll_ioepoch_open(lli, op_data->op_ioepoch); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 1428 | if (!S_ISREG(inode->i_mode)) { |
| 1429 | rc = 0; |
| 1430 | goto out; |
| 1431 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1432 | |
| 1433 | if (attr->ia_valid & (ATTR_SIZE | |
| 1434 | ATTR_ATIME | ATTR_ATIME_SET | |
| 1435 | ATTR_MTIME | ATTR_MTIME_SET)) |
| 1436 | /* For truncate and utimes sending attributes to OSTs, setting |
| 1437 | * mtime/atime to the past will be performed under PW [0:EOF] |
| 1438 | * extent lock (new_size:EOF for truncate). It may seem |
| 1439 | * excessive to send mtime/atime updates to OSTs when not |
| 1440 | * setting times to past, but it is necessary due to possible |
| 1441 | * time de-synchronization between MDT inode and OST objects */ |
Bobi Jam | 178ba1e | 2014-04-27 13:06:45 -0400 | [diff] [blame] | 1442 | if (attr->ia_valid & ATTR_SIZE) |
| 1443 | down_write(&lli->lli_trunc_sem); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1444 | rc = ll_setattr_ost(inode, attr); |
Bobi Jam | 178ba1e | 2014-04-27 13:06:45 -0400 | [diff] [blame] | 1445 | if (attr->ia_valid & ATTR_SIZE) |
| 1446 | up_write(&lli->lli_trunc_sem); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1447 | out: |
| 1448 | if (op_data) { |
| 1449 | if (op_data->op_ioepoch) { |
| 1450 | rc1 = ll_setattr_done_writing(inode, op_data, mod); |
| 1451 | if (!rc) |
| 1452 | rc = rc1; |
| 1453 | } |
| 1454 | ll_finish_md_op_data(op_data); |
| 1455 | } |
| 1456 | if (!S_ISDIR(inode->i_mode)) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1457 | mutex_lock(&inode->i_mutex); |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1458 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1459 | inode_dio_wait(inode); |
| 1460 | } |
| 1461 | |
| 1462 | ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ? |
| 1463 | LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1); |
| 1464 | |
John L. Hammond | 251c431 | 2013-07-23 00:06:51 +0800 | [diff] [blame] | 1465 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1466 | } |
| 1467 | |
| 1468 | int ll_setattr(struct dentry *de, struct iattr *attr) |
| 1469 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame^] | 1470 | int mode = d_inode(de)->i_mode; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1471 | |
| 1472 | if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) == |
| 1473 | (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) |
| 1474 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; |
| 1475 | |
| 1476 | if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) == |
| 1477 | (ATTR_SIZE|ATTR_MODE)) && |
| 1478 | (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) || |
| 1479 | (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && |
| 1480 | !(attr->ia_mode & S_ISGID)))) |
| 1481 | attr->ia_valid |= ATTR_FORCE; |
| 1482 | |
Nathaniel Clark | 98639249 | 2014-06-22 21:32:07 -0400 | [diff] [blame] | 1483 | if ((attr->ia_valid & ATTR_MODE) && |
| 1484 | (mode & S_ISUID) && |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1485 | !(attr->ia_mode & S_ISUID) && |
| 1486 | !(attr->ia_valid & ATTR_KILL_SUID)) |
| 1487 | attr->ia_valid |= ATTR_KILL_SUID; |
| 1488 | |
Nathaniel Clark | 98639249 | 2014-06-22 21:32:07 -0400 | [diff] [blame] | 1489 | if ((attr->ia_valid & ATTR_MODE) && |
| 1490 | ((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1491 | !(attr->ia_mode & S_ISGID) && |
| 1492 | !(attr->ia_valid & ATTR_KILL_SGID)) |
| 1493 | attr->ia_valid |= ATTR_KILL_SGID; |
| 1494 | |
JC Lafoucriere | a720b79 | 2013-12-09 22:56:55 +0800 | [diff] [blame] | 1495 | return ll_setattr_raw(de, attr, false); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1496 | } |
| 1497 | |
| 1498 | int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs, |
| 1499 | __u64 max_age, __u32 flags) |
| 1500 | { |
| 1501 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
| 1502 | struct obd_statfs obd_osfs; |
| 1503 | int rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1504 | |
| 1505 | rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags); |
| 1506 | if (rc) { |
| 1507 | CERROR("md_statfs fails: rc = %d\n", rc); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1508 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1509 | } |
| 1510 | |
| 1511 | osfs->os_type = sb->s_magic; |
| 1512 | |
Greg Kroah-Hartman | b0f5aad | 2014-07-12 20:06:04 -0700 | [diff] [blame] | 1513 | CDEBUG(D_SUPER, "MDC blocks %llu/%llu objects %llu/%llu\n", |
Greg Donald | 1d8cb70 | 2014-08-25 20:07:19 -0500 | [diff] [blame] | 1514 | osfs->os_bavail, osfs->os_blocks, osfs->os_ffree, |
| 1515 | osfs->os_files); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1516 | |
| 1517 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) |
| 1518 | flags |= OBD_STATFS_NODELAY; |
| 1519 | |
| 1520 | rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags); |
| 1521 | if (rc) { |
| 1522 | CERROR("obd_statfs fails: rc = %d\n", rc); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1523 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1524 | } |
| 1525 | |
Greg Kroah-Hartman | b0f5aad | 2014-07-12 20:06:04 -0700 | [diff] [blame] | 1526 | CDEBUG(D_SUPER, "OSC blocks %llu/%llu objects %llu/%llu\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1527 | obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree, |
| 1528 | obd_osfs.os_files); |
| 1529 | |
| 1530 | osfs->os_bsize = obd_osfs.os_bsize; |
| 1531 | osfs->os_blocks = obd_osfs.os_blocks; |
| 1532 | osfs->os_bfree = obd_osfs.os_bfree; |
| 1533 | osfs->os_bavail = obd_osfs.os_bavail; |
| 1534 | |
| 1535 | /* If we don't have as many objects free on the OST as inodes |
| 1536 | * on the MDS, we reduce the total number of inodes to |
| 1537 | * compensate, so that the "inodes in use" number is correct. |
| 1538 | */ |
| 1539 | if (obd_osfs.os_ffree < osfs->os_ffree) { |
| 1540 | osfs->os_files = (osfs->os_files - osfs->os_ffree) + |
| 1541 | obd_osfs.os_ffree; |
| 1542 | osfs->os_ffree = obd_osfs.os_ffree; |
| 1543 | } |
| 1544 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1545 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1546 | } |
| 1547 | int ll_statfs(struct dentry *de, struct kstatfs *sfs) |
| 1548 | { |
| 1549 | struct super_block *sb = de->d_sb; |
| 1550 | struct obd_statfs osfs; |
| 1551 | int rc; |
| 1552 | |
Greg Kroah-Hartman | b0f5aad | 2014-07-12 20:06:04 -0700 | [diff] [blame] | 1553 | CDEBUG(D_VFSTRACE, "VFS Op: at %llu jiffies\n", get_jiffies_64()); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1554 | ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1); |
| 1555 | |
| 1556 | /* Some amount of caching on the client is allowed */ |
| 1557 | rc = ll_statfs_internal(sb, &osfs, |
| 1558 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), |
| 1559 | 0); |
| 1560 | if (rc) |
| 1561 | return rc; |
| 1562 | |
| 1563 | statfs_unpack(sfs, &osfs); |
| 1564 | |
| 1565 | /* We need to downshift for all 32-bit kernels, because we can't |
| 1566 | * tell if the kernel is being called via sys_statfs64() or not. |
| 1567 | * Stop before overflowing f_bsize - in which case it is better |
| 1568 | * to just risk EOVERFLOW if caller is using old sys_statfs(). */ |
| 1569 | if (sizeof(long) < 8) { |
| 1570 | while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) { |
| 1571 | sfs->f_bsize <<= 1; |
| 1572 | |
| 1573 | osfs.os_blocks >>= 1; |
| 1574 | osfs.os_bfree >>= 1; |
| 1575 | osfs.os_bavail >>= 1; |
| 1576 | } |
| 1577 | } |
| 1578 | |
| 1579 | sfs->f_blocks = osfs.os_blocks; |
| 1580 | sfs->f_bfree = osfs.os_bfree; |
| 1581 | sfs->f_bavail = osfs.os_bavail; |
Fan Yong | bd99407 | 2013-07-23 00:07:01 +0800 | [diff] [blame] | 1582 | sfs->f_fsid = ll_s2sbi(sb)->ll_fsid; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1583 | return 0; |
| 1584 | } |
| 1585 | |
| 1586 | void ll_inode_size_lock(struct inode *inode) |
| 1587 | { |
| 1588 | struct ll_inode_info *lli; |
| 1589 | |
| 1590 | LASSERT(!S_ISDIR(inode->i_mode)); |
| 1591 | |
| 1592 | lli = ll_i2info(inode); |
Dmitry Eremin | 47a57bd | 2014-04-27 13:07:00 -0400 | [diff] [blame] | 1593 | mutex_lock(&lli->lli_size_mutex); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1594 | } |
| 1595 | |
| 1596 | void ll_inode_size_unlock(struct inode *inode) |
| 1597 | { |
| 1598 | struct ll_inode_info *lli; |
| 1599 | |
| 1600 | lli = ll_i2info(inode); |
Dmitry Eremin | 47a57bd | 2014-04-27 13:07:00 -0400 | [diff] [blame] | 1601 | mutex_unlock(&lli->lli_size_mutex); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1602 | } |
| 1603 | |
| 1604 | void ll_update_inode(struct inode *inode, struct lustre_md *md) |
| 1605 | { |
| 1606 | struct ll_inode_info *lli = ll_i2info(inode); |
| 1607 | struct mdt_body *body = md->body; |
| 1608 | struct lov_stripe_md *lsm = md->lsm; |
| 1609 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
| 1610 | |
| 1611 | LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0)); |
| 1612 | if (lsm != NULL) { |
| 1613 | if (!lli->lli_has_smd && |
| 1614 | !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK)) |
| 1615 | cl_file_inode_init(inode, md); |
| 1616 | |
| 1617 | lli->lli_maxbytes = lsm->lsm_maxbytes; |
| 1618 | if (lli->lli_maxbytes > MAX_LFS_FILESIZE) |
| 1619 | lli->lli_maxbytes = MAX_LFS_FILESIZE; |
| 1620 | } |
| 1621 | |
| 1622 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
| 1623 | if (body->valid & OBD_MD_FLRMTPERM) |
| 1624 | ll_update_remote_perm(inode, md->remote_perm); |
| 1625 | } |
| 1626 | #ifdef CONFIG_FS_POSIX_ACL |
| 1627 | else if (body->valid & OBD_MD_FLACL) { |
| 1628 | spin_lock(&lli->lli_lock); |
| 1629 | if (lli->lli_posix_acl) |
| 1630 | posix_acl_release(lli->lli_posix_acl); |
| 1631 | lli->lli_posix_acl = md->posix_acl; |
| 1632 | spin_unlock(&lli->lli_lock); |
| 1633 | } |
| 1634 | #endif |
wang di | c1e2699 | 2013-06-03 21:40:56 +0800 | [diff] [blame] | 1635 | inode->i_ino = cl_fid_build_ino(&body->fid1, |
| 1636 | sbi->ll_flags & LL_SBI_32BIT_API); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1637 | inode->i_generation = cl_fid_build_gen(&body->fid1); |
| 1638 | |
| 1639 | if (body->valid & OBD_MD_FLATIME) { |
| 1640 | if (body->atime > LTIME_S(inode->i_atime)) |
| 1641 | LTIME_S(inode->i_atime) = body->atime; |
| 1642 | lli->lli_lvb.lvb_atime = body->atime; |
| 1643 | } |
| 1644 | if (body->valid & OBD_MD_FLMTIME) { |
| 1645 | if (body->mtime > LTIME_S(inode->i_mtime)) { |
Greg Kroah-Hartman | b0f5aad | 2014-07-12 20:06:04 -0700 | [diff] [blame] | 1646 | CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n", |
| 1647 | inode->i_ino, LTIME_S(inode->i_mtime), |
| 1648 | body->mtime); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1649 | LTIME_S(inode->i_mtime) = body->mtime; |
| 1650 | } |
| 1651 | lli->lli_lvb.lvb_mtime = body->mtime; |
| 1652 | } |
| 1653 | if (body->valid & OBD_MD_FLCTIME) { |
| 1654 | if (body->ctime > LTIME_S(inode->i_ctime)) |
| 1655 | LTIME_S(inode->i_ctime) = body->ctime; |
| 1656 | lli->lli_lvb.lvb_ctime = body->ctime; |
| 1657 | } |
| 1658 | if (body->valid & OBD_MD_FLMODE) |
| 1659 | inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT); |
| 1660 | if (body->valid & OBD_MD_FLTYPE) |
| 1661 | inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT); |
| 1662 | LASSERT(inode->i_mode != 0); |
Tina Johnson | 566be54 | 2014-10-08 00:42:06 +0530 | [diff] [blame] | 1663 | if (S_ISREG(inode->i_mode)) |
Tina Johnson | e676883 | 2014-10-09 19:30:05 +0530 | [diff] [blame] | 1664 | inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, |
| 1665 | LL_MAX_BLKSIZE_BITS); |
Tina Johnson | 566be54 | 2014-10-08 00:42:06 +0530 | [diff] [blame] | 1666 | else |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1667 | inode->i_blkbits = inode->i_sb->s_blocksize_bits; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1668 | if (body->valid & OBD_MD_FLUID) |
Peng Tao | 4b1a25f | 2013-07-15 22:27:14 +0800 | [diff] [blame] | 1669 | inode->i_uid = make_kuid(&init_user_ns, body->uid); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1670 | if (body->valid & OBD_MD_FLGID) |
Peng Tao | 4b1a25f | 2013-07-15 22:27:14 +0800 | [diff] [blame] | 1671 | inode->i_gid = make_kgid(&init_user_ns, body->gid); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1672 | if (body->valid & OBD_MD_FLFLAGS) |
| 1673 | inode->i_flags = ll_ext_to_inode_flags(body->flags); |
| 1674 | if (body->valid & OBD_MD_FLNLINK) |
| 1675 | set_nlink(inode, body->nlink); |
| 1676 | if (body->valid & OBD_MD_FLRDEV) |
| 1677 | inode->i_rdev = old_decode_dev(body->rdev); |
| 1678 | |
| 1679 | if (body->valid & OBD_MD_FLID) { |
| 1680 | /* FID shouldn't be changed! */ |
| 1681 | if (fid_is_sane(&lli->lli_fid)) { |
| 1682 | LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1), |
| 1683 | "Trying to change FID "DFID |
| 1684 | " to the "DFID", inode %lu/%u(%p)\n", |
| 1685 | PFID(&lli->lli_fid), PFID(&body->fid1), |
| 1686 | inode->i_ino, inode->i_generation, inode); |
| 1687 | } else |
| 1688 | lli->lli_fid = body->fid1; |
| 1689 | } |
| 1690 | |
| 1691 | LASSERT(fid_seq(&lli->lli_fid) != 0); |
| 1692 | |
| 1693 | if (body->valid & OBD_MD_FLSIZE) { |
| 1694 | if (exp_connect_som(ll_i2mdexp(inode)) && |
| 1695 | S_ISREG(inode->i_mode)) { |
| 1696 | struct lustre_handle lockh; |
| 1697 | ldlm_mode_t mode; |
| 1698 | |
| 1699 | /* As it is possible a blocking ast has been processed |
| 1700 | * by this time, we need to check there is an UPDATE |
| 1701 | * lock on the client and set LLIF_MDS_SIZE_LOCK holding |
| 1702 | * it. */ |
| 1703 | mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE, |
Andrew Perepechko | 7fc1f83 | 2013-12-03 21:58:49 +0800 | [diff] [blame] | 1704 | &lockh, LDLM_FL_CBPENDING, |
| 1705 | LCK_CR | LCK_CW | |
| 1706 | LCK_PR | LCK_PW); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1707 | if (mode) { |
| 1708 | if (lli->lli_flags & (LLIF_DONE_WRITING | |
| 1709 | LLIF_EPOCH_PENDING | |
| 1710 | LLIF_SOM_DIRTY)) { |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 1711 | CERROR("ino %lu flags %u still has size authority! do not trust the size got from MDS\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1712 | inode->i_ino, lli->lli_flags); |
| 1713 | } else { |
| 1714 | /* Use old size assignment to avoid |
| 1715 | * deadlock bz14138 & bz14326 */ |
| 1716 | i_size_write(inode, body->size); |
Sebastien Buisson | ae5ef67 | 2013-07-25 01:17:27 +0800 | [diff] [blame] | 1717 | spin_lock(&lli->lli_lock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1718 | lli->lli_flags |= LLIF_MDS_SIZE_LOCK; |
Sebastien Buisson | ae5ef67 | 2013-07-25 01:17:27 +0800 | [diff] [blame] | 1719 | spin_unlock(&lli->lli_lock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1720 | } |
| 1721 | ldlm_lock_decref(&lockh, mode); |
| 1722 | } |
| 1723 | } else { |
| 1724 | /* Use old size assignment to avoid |
| 1725 | * deadlock bz14138 & bz14326 */ |
| 1726 | i_size_write(inode, body->size); |
| 1727 | |
| 1728 | CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n", |
| 1729 | inode->i_ino, (unsigned long long)body->size); |
| 1730 | } |
| 1731 | |
| 1732 | if (body->valid & OBD_MD_FLBLOCKS) |
| 1733 | inode->i_blocks = body->blocks; |
| 1734 | } |
| 1735 | |
| 1736 | if (body->valid & OBD_MD_FLMDSCAPA) { |
| 1737 | LASSERT(md->mds_capa); |
| 1738 | ll_add_capa(inode, md->mds_capa); |
| 1739 | } |
| 1740 | if (body->valid & OBD_MD_FLOSSCAPA) { |
| 1741 | LASSERT(md->oss_capa); |
| 1742 | ll_add_capa(inode, md->oss_capa); |
| 1743 | } |
JC Lafoucriere | 5ea17d6 | 2013-11-21 22:24:48 +0800 | [diff] [blame] | 1744 | |
| 1745 | if (body->valid & OBD_MD_TSTATE) { |
| 1746 | if (body->t_state & MS_RESTORE) |
| 1747 | lli->lli_flags |= LLIF_FILE_RESTORING; |
| 1748 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1749 | } |
| 1750 | |
| 1751 | void ll_read_inode2(struct inode *inode, void *opaque) |
| 1752 | { |
| 1753 | struct lustre_md *md = opaque; |
| 1754 | struct ll_inode_info *lli = ll_i2info(inode); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1755 | |
| 1756 | CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", |
| 1757 | PFID(&lli->lli_fid), inode); |
| 1758 | |
| 1759 | LASSERT(!lli->lli_has_smd); |
| 1760 | |
| 1761 | /* Core attributes from the MDS first. This is a new inode, and |
| 1762 | * the VFS doesn't zero times in the core inode so we have to do |
| 1763 | * it ourselves. They will be overwritten by either MDS or OST |
| 1764 | * attributes - we just need to make sure they aren't newer. */ |
| 1765 | LTIME_S(inode->i_mtime) = 0; |
| 1766 | LTIME_S(inode->i_atime) = 0; |
| 1767 | LTIME_S(inode->i_ctime) = 0; |
| 1768 | inode->i_rdev = 0; |
| 1769 | ll_update_inode(inode, md); |
| 1770 | |
| 1771 | /* OIDEBUG(inode); */ |
| 1772 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1773 | if (S_ISREG(inode->i_mode)) { |
| 1774 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
Tina Johnson | cf29a7b | 2014-10-08 00:42:05 +0530 | [diff] [blame] | 1775 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1776 | inode->i_op = &ll_file_inode_operations; |
| 1777 | inode->i_fop = sbi->ll_fop; |
| 1778 | inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1779 | } else if (S_ISDIR(inode->i_mode)) { |
| 1780 | inode->i_op = &ll_dir_inode_operations; |
| 1781 | inode->i_fop = &ll_dir_operations; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1782 | } else if (S_ISLNK(inode->i_mode)) { |
| 1783 | inode->i_op = &ll_fast_symlink_inode_operations; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1784 | } else { |
| 1785 | inode->i_op = &ll_special_inode_operations; |
| 1786 | |
| 1787 | init_special_inode(inode, inode->i_mode, |
| 1788 | inode->i_rdev); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1789 | } |
| 1790 | } |
| 1791 | |
| 1792 | void ll_delete_inode(struct inode *inode) |
| 1793 | { |
| 1794 | struct cl_inode_info *lli = cl_i2info(inode); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1795 | |
| 1796 | if (S_ISREG(inode->i_mode) && lli->lli_clob != NULL) |
| 1797 | /* discard all dirty pages before truncating them, required by |
| 1798 | * osc_extent implementation at LU-1030. */ |
Niu Yawei | 65fb55d | 2013-06-03 21:40:38 +0800 | [diff] [blame] | 1799 | cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, |
| 1800 | CL_FSYNC_DISCARD, 1); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1801 | |
Johannes Weiner | 91b0abe | 2014-04-03 14:47:49 -0700 | [diff] [blame] | 1802 | truncate_inode_pages_final(&inode->i_data); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1803 | |
| 1804 | /* Workaround for LU-118 */ |
| 1805 | if (inode->i_data.nrpages) { |
Vaishali Thakkar | c4226c5 | 2014-10-05 17:28:12 +0530 | [diff] [blame] | 1806 | spin_lock_irq(&inode->i_data.tree_lock); |
| 1807 | spin_unlock_irq(&inode->i_data.tree_lock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1808 | LASSERTF(inode->i_data.nrpages == 0, |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 1809 | "inode=%lu/%u(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1810 | inode->i_ino, inode->i_generation, inode, |
| 1811 | inode->i_data.nrpages); |
| 1812 | } |
| 1813 | /* Workaround end */ |
| 1814 | |
| 1815 | ll_clear_inode(inode); |
| 1816 | clear_inode(inode); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1817 | } |
| 1818 | |
| 1819 | int ll_iocontrol(struct inode *inode, struct file *file, |
| 1820 | unsigned int cmd, unsigned long arg) |
| 1821 | { |
| 1822 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
| 1823 | struct ptlrpc_request *req = NULL; |
| 1824 | int rc, flags = 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1825 | |
Greg Donald | a58a38a | 2014-08-21 12:40:35 -0500 | [diff] [blame] | 1826 | switch (cmd) { |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1827 | case FSFILT_IOC_GETFLAGS: { |
| 1828 | struct mdt_body *body; |
| 1829 | struct md_op_data *op_data; |
| 1830 | |
| 1831 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, |
| 1832 | 0, 0, LUSTRE_OPC_ANY, |
| 1833 | NULL); |
| 1834 | if (IS_ERR(op_data)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1835 | return PTR_ERR(op_data); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1836 | |
| 1837 | op_data->op_valid = OBD_MD_FLFLAGS; |
| 1838 | rc = md_getattr(sbi->ll_md_exp, op_data, &req); |
| 1839 | ll_finish_md_op_data(op_data); |
| 1840 | if (rc) { |
| 1841 | CERROR("failure %d inode %lu\n", rc, inode->i_ino); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1842 | return -abs(rc); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1843 | } |
| 1844 | |
| 1845 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); |
| 1846 | |
| 1847 | flags = body->flags; |
| 1848 | |
| 1849 | ptlrpc_req_finished(req); |
| 1850 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1851 | return put_user(flags, (int *)arg); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1852 | } |
| 1853 | case FSFILT_IOC_SETFLAGS: { |
| 1854 | struct lov_stripe_md *lsm; |
| 1855 | struct obd_info oinfo = { { { 0 } } }; |
| 1856 | struct md_op_data *op_data; |
| 1857 | |
| 1858 | if (get_user(flags, (int *)arg)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1859 | return -EFAULT; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1860 | |
| 1861 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, |
| 1862 | LUSTRE_OPC_ANY, NULL); |
| 1863 | if (IS_ERR(op_data)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1864 | return PTR_ERR(op_data); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1865 | |
| 1866 | ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags; |
| 1867 | op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG; |
| 1868 | rc = md_setattr(sbi->ll_md_exp, op_data, |
| 1869 | NULL, 0, NULL, 0, &req, NULL); |
| 1870 | ll_finish_md_op_data(op_data); |
| 1871 | ptlrpc_req_finished(req); |
| 1872 | if (rc) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1873 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1874 | |
| 1875 | inode->i_flags = ll_ext_to_inode_flags(flags); |
| 1876 | |
| 1877 | lsm = ccc_inode_lsm_get(inode); |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 1878 | if (!lsm_has_objects(lsm)) { |
| 1879 | ccc_inode_lsm_put(inode, lsm); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1880 | return 0; |
Jinshan Xiong | 5dd1641 | 2013-07-23 00:06:39 +0800 | [diff] [blame] | 1881 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1882 | |
| 1883 | OBDO_ALLOC(oinfo.oi_oa); |
| 1884 | if (!oinfo.oi_oa) { |
| 1885 | ccc_inode_lsm_put(inode, lsm); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1886 | return -ENOMEM; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1887 | } |
| 1888 | oinfo.oi_md = lsm; |
| 1889 | oinfo.oi_oa->o_oi = lsm->lsm_oi; |
| 1890 | oinfo.oi_oa->o_flags = flags; |
| 1891 | oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | |
| 1892 | OBD_MD_FLGROUP; |
| 1893 | oinfo.oi_capa = ll_mdscapa_get(inode); |
| 1894 | obdo_set_parent_fid(oinfo.oi_oa, &ll_i2info(inode)->lli_fid); |
| 1895 | rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL); |
| 1896 | capa_put(oinfo.oi_capa); |
| 1897 | OBDO_FREE(oinfo.oi_oa); |
| 1898 | ccc_inode_lsm_put(inode, lsm); |
| 1899 | |
| 1900 | if (rc && rc != -EPERM && rc != -EACCES) |
| 1901 | CERROR("osc_setattr_async fails: rc = %d\n", rc); |
| 1902 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1903 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1904 | } |
| 1905 | default: |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1906 | return -ENOSYS; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1907 | } |
| 1908 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 1909 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1910 | } |
| 1911 | |
| 1912 | int ll_flush_ctx(struct inode *inode) |
| 1913 | { |
| 1914 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
| 1915 | |
Peng Tao | 4b1a25f | 2013-07-15 22:27:14 +0800 | [diff] [blame] | 1916 | CDEBUG(D_SEC, "flush context for user %d\n", |
| 1917 | from_kuid(&init_user_ns, current_uid())); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1918 | |
| 1919 | obd_set_info_async(NULL, sbi->ll_md_exp, |
| 1920 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, |
| 1921 | 0, NULL, NULL); |
| 1922 | obd_set_info_async(NULL, sbi->ll_dt_exp, |
| 1923 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, |
| 1924 | 0, NULL, NULL); |
| 1925 | return 0; |
| 1926 | } |
| 1927 | |
| 1928 | /* umount -f client means force down, don't save state */ |
| 1929 | void ll_umount_begin(struct super_block *sb) |
| 1930 | { |
| 1931 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
| 1932 | struct obd_device *obd; |
| 1933 | struct obd_ioctl_data *ioc_data; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1934 | |
| 1935 | CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb, |
| 1936 | sb->s_count, atomic_read(&sb->s_active)); |
| 1937 | |
| 1938 | obd = class_exp2obd(sbi->ll_md_exp); |
| 1939 | if (obd == NULL) { |
Greg Kroah-Hartman | 55f5a82 | 2014-07-12 20:26:07 -0700 | [diff] [blame] | 1940 | CERROR("Invalid MDC connection handle %#llx\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1941 | sbi->ll_md_exp->exp_handle.h_cookie); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1942 | return; |
| 1943 | } |
| 1944 | obd->obd_force = 1; |
| 1945 | |
| 1946 | obd = class_exp2obd(sbi->ll_dt_exp); |
| 1947 | if (obd == NULL) { |
Greg Kroah-Hartman | 55f5a82 | 2014-07-12 20:26:07 -0700 | [diff] [blame] | 1948 | CERROR("Invalid LOV connection handle %#llx\n", |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1949 | sbi->ll_dt_exp->exp_handle.h_cookie); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1950 | return; |
| 1951 | } |
| 1952 | obd->obd_force = 1; |
| 1953 | |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 1954 | ioc_data = kzalloc(sizeof(*ioc_data), GFP_NOFS); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1955 | if (ioc_data) { |
| 1956 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, |
Joe Perches | ec83e61 | 2013-10-13 20:22:03 -0700 | [diff] [blame] | 1957 | sizeof(*ioc_data), ioc_data, NULL); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1958 | |
| 1959 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, |
Joe Perches | ec83e61 | 2013-10-13 20:22:03 -0700 | [diff] [blame] | 1960 | sizeof(*ioc_data), ioc_data, NULL); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1961 | |
| 1962 | OBD_FREE_PTR(ioc_data); |
| 1963 | } |
| 1964 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1965 | /* Really, we'd like to wait until there are no requests outstanding, |
| 1966 | * and then continue. For now, we just invalidate the requests, |
| 1967 | * schedule() and sleep one second if needed, and hope. |
| 1968 | */ |
| 1969 | schedule(); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1970 | } |
| 1971 | |
| 1972 | int ll_remount_fs(struct super_block *sb, int *flags, char *data) |
| 1973 | { |
| 1974 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
| 1975 | char *profilenm = get_profile_name(sb); |
| 1976 | int err; |
| 1977 | __u32 read_only; |
| 1978 | |
| 1979 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { |
| 1980 | read_only = *flags & MS_RDONLY; |
| 1981 | err = obd_set_info_async(NULL, sbi->ll_md_exp, |
| 1982 | sizeof(KEY_READ_ONLY), |
| 1983 | KEY_READ_ONLY, sizeof(read_only), |
| 1984 | &read_only, NULL); |
| 1985 | if (err) { |
| 1986 | LCONSOLE_WARN("Failed to remount %s %s (%d)\n", |
| 1987 | profilenm, read_only ? |
| 1988 | "read-only" : "read-write", err); |
| 1989 | return err; |
| 1990 | } |
| 1991 | |
| 1992 | if (read_only) |
| 1993 | sb->s_flags |= MS_RDONLY; |
| 1994 | else |
| 1995 | sb->s_flags &= ~MS_RDONLY; |
| 1996 | |
| 1997 | if (sbi->ll_flags & LL_SBI_VERBOSE) |
| 1998 | LCONSOLE_WARN("Remounted %s %s\n", profilenm, |
| 1999 | read_only ? "read-only" : "read-write"); |
| 2000 | } |
| 2001 | return 0; |
| 2002 | } |
| 2003 | |
| 2004 | int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req, |
| 2005 | struct super_block *sb, struct lookup_intent *it) |
| 2006 | { |
| 2007 | struct ll_sb_info *sbi = NULL; |
| 2008 | struct lustre_md md; |
| 2009 | int rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2010 | |
| 2011 | LASSERT(*inode || sb); |
| 2012 | sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode); |
| 2013 | rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp, |
| 2014 | sbi->ll_md_exp, &md); |
| 2015 | if (rc) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2016 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2017 | |
| 2018 | if (*inode) { |
| 2019 | ll_update_inode(*inode, &md); |
| 2020 | } else { |
| 2021 | LASSERT(sb != NULL); |
| 2022 | |
| 2023 | /* |
| 2024 | * At this point server returns to client's same fid as client |
| 2025 | * generated for creating. So using ->fid1 is okay here. |
| 2026 | */ |
| 2027 | LASSERT(fid_is_sane(&md.body->fid1)); |
| 2028 | |
| 2029 | *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, |
wang di | c1e2699 | 2013-06-03 21:40:56 +0800 | [diff] [blame] | 2030 | sbi->ll_flags & LL_SBI_32BIT_API), |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2031 | &md); |
| 2032 | if (*inode == NULL || IS_ERR(*inode)) { |
| 2033 | #ifdef CONFIG_FS_POSIX_ACL |
| 2034 | if (md.posix_acl) { |
| 2035 | posix_acl_release(md.posix_acl); |
| 2036 | md.posix_acl = NULL; |
| 2037 | } |
| 2038 | #endif |
| 2039 | rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM; |
| 2040 | *inode = NULL; |
| 2041 | CERROR("new_inode -fatal: rc %d\n", rc); |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2042 | goto out; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2043 | } |
| 2044 | } |
| 2045 | |
| 2046 | /* Handling piggyback layout lock. |
| 2047 | * Layout lock can be piggybacked by getattr and open request. |
| 2048 | * The lsm can be applied to inode only if it comes with a layout lock |
| 2049 | * otherwise correct layout may be overwritten, for example: |
| 2050 | * 1. proc1: mdt returns a lsm but not granting layout |
| 2051 | * 2. layout was changed by another client |
| 2052 | * 3. proc2: refresh layout and layout lock granted |
| 2053 | * 4. proc1: to apply a stale layout */ |
| 2054 | if (it != NULL && it->d.lustre.it_lock_mode != 0) { |
| 2055 | struct lustre_handle lockh; |
| 2056 | struct ldlm_lock *lock; |
| 2057 | |
| 2058 | lockh.cookie = it->d.lustre.it_lock_handle; |
| 2059 | lock = ldlm_handle2lock(&lockh); |
| 2060 | LASSERT(lock != NULL); |
| 2061 | if (ldlm_has_layout(lock)) { |
| 2062 | struct cl_object_conf conf; |
| 2063 | |
| 2064 | memset(&conf, 0, sizeof(conf)); |
| 2065 | conf.coc_opc = OBJECT_CONF_SET; |
| 2066 | conf.coc_inode = *inode; |
| 2067 | conf.coc_lock = lock; |
| 2068 | conf.u.coc_md = &md; |
| 2069 | (void)ll_layout_conf(*inode, &conf); |
| 2070 | } |
| 2071 | LDLM_LOCK_PUT(lock); |
| 2072 | } |
| 2073 | |
| 2074 | out: |
| 2075 | if (md.lsm != NULL) |
| 2076 | obd_free_memmd(sbi->ll_dt_exp, &md.lsm); |
| 2077 | md_free_lustre_md(sbi->ll_md_exp, &md); |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2078 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2079 | } |
| 2080 | |
| 2081 | int ll_obd_statfs(struct inode *inode, void *arg) |
| 2082 | { |
| 2083 | struct ll_sb_info *sbi = NULL; |
| 2084 | struct obd_export *exp; |
| 2085 | char *buf = NULL; |
| 2086 | struct obd_ioctl_data *data = NULL; |
| 2087 | __u32 type; |
| 2088 | __u32 flags; |
| 2089 | int len = 0, rc; |
| 2090 | |
Tina Ruchandani | c650ba7 | 2014-10-25 16:35:49 -0700 | [diff] [blame] | 2091 | if (!inode) { |
| 2092 | rc = -EINVAL; |
| 2093 | goto out_statfs; |
| 2094 | } |
| 2095 | |
| 2096 | sbi = ll_i2sbi(inode); |
| 2097 | if (!sbi) { |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2098 | rc = -EINVAL; |
| 2099 | goto out_statfs; |
| 2100 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2101 | |
| 2102 | rc = obd_ioctl_getdata(&buf, &len, arg); |
| 2103 | if (rc) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2104 | goto out_statfs; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2105 | |
Julia Lawall | bdbb051 | 2014-08-30 22:11:37 +0200 | [diff] [blame] | 2106 | data = (void *)buf; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2107 | if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 || |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2108 | !data->ioc_pbuf1 || !data->ioc_pbuf2) { |
| 2109 | rc = -EINVAL; |
| 2110 | goto out_statfs; |
| 2111 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2112 | |
| 2113 | if (data->ioc_inllen1 != sizeof(__u32) || |
| 2114 | data->ioc_inllen2 != sizeof(__u32) || |
| 2115 | data->ioc_plen1 != sizeof(struct obd_statfs) || |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2116 | data->ioc_plen2 != sizeof(struct obd_uuid)) { |
| 2117 | rc = -EINVAL; |
| 2118 | goto out_statfs; |
| 2119 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2120 | |
| 2121 | memcpy(&type, data->ioc_inlbuf1, sizeof(__u32)); |
| 2122 | if (type & LL_STATFS_LMV) |
| 2123 | exp = sbi->ll_md_exp; |
| 2124 | else if (type & LL_STATFS_LOV) |
| 2125 | exp = sbi->ll_dt_exp; |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2126 | else { |
| 2127 | rc = -ENODEV; |
| 2128 | goto out_statfs; |
| 2129 | } |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2130 | |
| 2131 | flags = (type & LL_STATFS_NODELAY) ? OBD_STATFS_NODELAY : 0; |
| 2132 | rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, &flags); |
| 2133 | if (rc) |
Julia Lawall | 34e1f2b | 2014-08-30 16:24:55 +0200 | [diff] [blame] | 2134 | goto out_statfs; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2135 | out_statfs: |
| 2136 | if (buf) |
| 2137 | obd_ioctl_freedata(buf, len); |
| 2138 | return rc; |
| 2139 | } |
| 2140 | |
| 2141 | int ll_process_config(struct lustre_cfg *lcfg) |
| 2142 | { |
| 2143 | char *ptr; |
| 2144 | void *sb; |
| 2145 | struct lprocfs_static_vars lvars; |
| 2146 | unsigned long x; |
| 2147 | int rc = 0; |
| 2148 | |
| 2149 | lprocfs_llite_init_vars(&lvars); |
| 2150 | |
| 2151 | /* The instance name contains the sb: lustre-client-aacfe000 */ |
| 2152 | ptr = strrchr(lustre_cfg_string(lcfg, 0), '-'); |
| 2153 | if (!ptr || !*(++ptr)) |
| 2154 | return -EINVAL; |
| 2155 | if (sscanf(ptr, "%lx", &x) != 1) |
| 2156 | return -EINVAL; |
| 2157 | sb = (void *)x; |
| 2158 | /* This better be a real Lustre superblock! */ |
| 2159 | LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC); |
| 2160 | |
| 2161 | /* Note we have not called client_common_fill_super yet, so |
| 2162 | proc fns must be able to handle that! */ |
| 2163 | rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars, |
| 2164 | lcfg, sb); |
| 2165 | if (rc > 0) |
| 2166 | rc = 0; |
Julia Lawall | fbe7c6c | 2014-08-26 22:00:33 +0200 | [diff] [blame] | 2167 | return rc; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2168 | } |
| 2169 | |
| 2170 | /* this function prepares md_op_data hint for passing ot down to MD stack. */ |
Greg Donald | aff9d8e | 2014-08-21 11:07:42 -0500 | [diff] [blame] | 2171 | struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2172 | struct inode *i1, struct inode *i2, |
| 2173 | const char *name, int namelen, |
| 2174 | int mode, __u32 opc, void *data) |
| 2175 | { |
| 2176 | LASSERT(i1 != NULL); |
| 2177 | |
| 2178 | if (namelen > ll_i2sbi(i1)->ll_namelen) |
| 2179 | return ERR_PTR(-ENAMETOOLONG); |
| 2180 | |
| 2181 | if (op_data == NULL) |
Julia Lawall | 496a51b | 2014-09-18 22:24:02 +0200 | [diff] [blame] | 2182 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2183 | |
| 2184 | if (op_data == NULL) |
| 2185 | return ERR_PTR(-ENOMEM); |
| 2186 | |
| 2187 | ll_i2gids(op_data->op_suppgids, i1, i2); |
| 2188 | op_data->op_fid1 = *ll_inode2fid(i1); |
| 2189 | op_data->op_capa1 = ll_mdscapa_get(i1); |
| 2190 | |
| 2191 | if (i2) { |
| 2192 | op_data->op_fid2 = *ll_inode2fid(i2); |
| 2193 | op_data->op_capa2 = ll_mdscapa_get(i2); |
| 2194 | } else { |
| 2195 | fid_zero(&op_data->op_fid2); |
| 2196 | op_data->op_capa2 = NULL; |
| 2197 | } |
| 2198 | |
| 2199 | op_data->op_name = name; |
| 2200 | op_data->op_namelen = namelen; |
| 2201 | op_data->op_mode = mode; |
Greg Kroah-Hartman | 7264b8a | 2014-07-12 00:38:48 -0700 | [diff] [blame] | 2202 | op_data->op_mod_time = get_seconds(); |
Peng Tao | 4b1a25f | 2013-07-15 22:27:14 +0800 | [diff] [blame] | 2203 | op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid()); |
| 2204 | op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid()); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2205 | op_data->op_cap = cfs_curproc_cap_pack(); |
| 2206 | op_data->op_bias = 0; |
| 2207 | op_data->op_cli_flags = 0; |
| 2208 | if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) && |
| 2209 | filename_is_volatile(name, namelen, NULL)) |
| 2210 | op_data->op_bias |= MDS_CREATE_VOLATILE; |
| 2211 | op_data->op_opc = opc; |
| 2212 | op_data->op_mds = 0; |
| 2213 | op_data->op_data = data; |
| 2214 | |
| 2215 | /* If the file is being opened after mknod() (normally due to NFS) |
| 2216 | * try to use the default stripe data from parent directory for |
| 2217 | * allocating OST objects. Try to pass the parent FID to MDS. */ |
| 2218 | if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) && |
| 2219 | !ll_i2info(i2)->lli_has_smd) { |
| 2220 | struct ll_inode_info *lli = ll_i2info(i2); |
| 2221 | |
| 2222 | spin_lock(&lli->lli_lock); |
| 2223 | if (likely(!lli->lli_has_smd && !fid_is_zero(&lli->lli_pfid))) |
| 2224 | op_data->op_fid1 = lli->lli_pfid; |
| 2225 | spin_unlock(&lli->lli_lock); |
| 2226 | /** We ignore parent's capability temporary. */ |
| 2227 | } |
| 2228 | |
| 2229 | /* When called by ll_setattr_raw, file is i1. */ |
| 2230 | if (LLIF_DATA_MODIFIED & ll_i2info(i1)->lli_flags) |
| 2231 | op_data->op_bias |= MDS_DATA_MODIFIED; |
| 2232 | |
| 2233 | return op_data; |
| 2234 | } |
| 2235 | |
| 2236 | void ll_finish_md_op_data(struct md_op_data *op_data) |
| 2237 | { |
| 2238 | capa_put(op_data->op_capa1); |
| 2239 | capa_put(op_data->op_capa2); |
| 2240 | OBD_FREE_PTR(op_data); |
| 2241 | } |
| 2242 | |
| 2243 | int ll_show_options(struct seq_file *seq, struct dentry *dentry) |
| 2244 | { |
| 2245 | struct ll_sb_info *sbi; |
| 2246 | |
| 2247 | LASSERT((seq != NULL) && (dentry != NULL)); |
| 2248 | sbi = ll_s2sbi(dentry->d_sb); |
| 2249 | |
| 2250 | if (sbi->ll_flags & LL_SBI_NOLCK) |
| 2251 | seq_puts(seq, ",nolock"); |
| 2252 | |
| 2253 | if (sbi->ll_flags & LL_SBI_FLOCK) |
| 2254 | seq_puts(seq, ",flock"); |
| 2255 | |
| 2256 | if (sbi->ll_flags & LL_SBI_LOCALFLOCK) |
| 2257 | seq_puts(seq, ",localflock"); |
| 2258 | |
| 2259 | if (sbi->ll_flags & LL_SBI_USER_XATTR) |
| 2260 | seq_puts(seq, ",user_xattr"); |
| 2261 | |
| 2262 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) |
| 2263 | seq_puts(seq, ",lazystatfs"); |
| 2264 | |
| 2265 | if (sbi->ll_flags & LL_SBI_USER_FID2PATH) |
| 2266 | seq_puts(seq, ",user_fid2path"); |
| 2267 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2268 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2269 | } |
| 2270 | |
| 2271 | /** |
| 2272 | * Get obd name by cmd, and copy out to user space |
| 2273 | */ |
| 2274 | int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg) |
| 2275 | { |
| 2276 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
| 2277 | struct obd_device *obd; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2278 | |
| 2279 | if (cmd == OBD_IOC_GETDTNAME) |
| 2280 | obd = class_exp2obd(sbi->ll_dt_exp); |
| 2281 | else if (cmd == OBD_IOC_GETMDNAME) |
| 2282 | obd = class_exp2obd(sbi->ll_md_exp); |
| 2283 | else |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2284 | return -EINVAL; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2285 | |
| 2286 | if (!obd) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2287 | return -ENOENT; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2288 | |
| 2289 | if (copy_to_user((void *)arg, obd->obd_name, |
| 2290 | strlen(obd->obd_name) + 1)) |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2291 | return -EFAULT; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2292 | |
Greg Kroah-Hartman | 0a3bdb0 | 2013-08-03 10:35:28 +0800 | [diff] [blame] | 2293 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2294 | } |
| 2295 | |
| 2296 | /** |
| 2297 | * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the |
| 2298 | * fsname will be returned in this buffer; otherwise, a static buffer will be |
| 2299 | * used to store the fsname and returned to caller. |
| 2300 | */ |
| 2301 | char *ll_get_fsname(struct super_block *sb, char *buf, int buflen) |
| 2302 | { |
| 2303 | static char fsname_static[MTI_NAME_MAXLEN]; |
| 2304 | struct lustre_sb_info *lsi = s2lsi(sb); |
| 2305 | char *ptr; |
| 2306 | int len; |
| 2307 | |
| 2308 | if (buf == NULL) { |
| 2309 | /* this means the caller wants to use static buffer |
| 2310 | * and it doesn't care about race. Usually this is |
| 2311 | * in error reporting path */ |
| 2312 | buf = fsname_static; |
| 2313 | buflen = sizeof(fsname_static); |
| 2314 | } |
| 2315 | |
| 2316 | len = strlen(lsi->lsi_lmd->lmd_profile); |
| 2317 | ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); |
| 2318 | if (ptr && (strcmp(ptr, "-client") == 0)) |
| 2319 | len -= 7; |
| 2320 | |
| 2321 | if (unlikely(len >= buflen)) |
| 2322 | len = buflen - 1; |
| 2323 | strncpy(buf, lsi->lsi_lmd->lmd_profile, len); |
| 2324 | buf[len] = '\0'; |
| 2325 | |
| 2326 | return buf; |
| 2327 | } |
| 2328 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2329 | void ll_dirty_page_discard_warn(struct page *page, int ioret) |
| 2330 | { |
| 2331 | char *buf, *path = NULL; |
| 2332 | struct dentry *dentry = NULL; |
| 2333 | struct ccc_object *obj = cl_inode2ccc(page->mapping->host); |
| 2334 | |
| 2335 | /* this can be called inside spin lock so use GFP_ATOMIC. */ |
| 2336 | buf = (char *)__get_free_page(GFP_ATOMIC); |
| 2337 | if (buf != NULL) { |
| 2338 | dentry = d_find_alias(page->mapping->host); |
| 2339 | if (dentry != NULL) |
Al Viro | 1ad581e | 2014-12-11 22:40:27 -0500 | [diff] [blame] | 2340 | path = dentry_path_raw(dentry, buf, PAGE_SIZE); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2341 | } |
| 2342 | |
Ryan Haasken | 73b8990 | 2014-04-27 13:07:01 -0400 | [diff] [blame] | 2343 | CDEBUG(D_WARNING, |
Joe Perches | 2d00bd1 | 2014-11-23 11:28:50 -0800 | [diff] [blame] | 2344 | "%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n", |
| 2345 | ll_get_fsname(page->mapping->host->i_sb, NULL, 0), |
Ryan Haasken | 73b8990 | 2014-04-27 13:07:01 -0400 | [diff] [blame] | 2346 | s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev, |
| 2347 | PFID(&obj->cob_header.coh_lu.loh_fid), |
| 2348 | (path && !IS_ERR(path)) ? path : "", ioret); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 2349 | |
| 2350 | if (dentry != NULL) |
| 2351 | dput(dentry); |
| 2352 | |
| 2353 | if (buf != NULL) |
| 2354 | free_page((unsigned long)buf); |
| 2355 | } |