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 |
Oleg Drokin | 6a5b99a | 2016-06-14 23:33:40 -0400 | [diff] [blame] | 18 | * http://www.gnu.org/licenses/gpl-2.0.html |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 19 | * |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 20 | * GPL HEADER END |
| 21 | */ |
| 22 | /* |
| 23 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 24 | * Use is subject to license terms. |
| 25 | * |
Andreas Dilger | 1dc563a | 2015-11-08 18:09:37 -0500 | [diff] [blame] | 26 | * Copyright (c) 2011, 2015, Intel Corporation. |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 27 | */ |
| 28 | /* |
| 29 | * This file is part of Lustre, http://www.lustre.org/ |
| 30 | * Lustre is a trademark of Sun Microsystems, Inc. |
| 31 | */ |
| 32 | |
| 33 | #ifndef OSC_INTERNAL_H |
| 34 | #define OSC_INTERNAL_H |
| 35 | |
| 36 | #define OAP_MAGIC 8675309 |
| 37 | |
Li Xi | aefd9d7 | 2015-09-14 18:41:32 -0400 | [diff] [blame] | 38 | extern atomic_t osc_pool_req_count; |
| 39 | extern unsigned int osc_reqpool_maxreqcount; |
| 40 | extern struct ptlrpc_request_pool *osc_rq_pool; |
| 41 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 42 | struct lu_env; |
| 43 | |
| 44 | enum async_flags { |
| 45 | ASYNC_READY = 0x1, /* ap_make_ready will not be called before this |
Oleg Drokin | 30aa9c5 | 2016-02-24 22:00:37 -0500 | [diff] [blame] | 46 | * page is added to an rpc |
| 47 | */ |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 48 | ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */ |
| 49 | ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called |
Oleg Drokin | 30aa9c5 | 2016-02-24 22:00:37 -0500 | [diff] [blame] | 50 | * to give the caller a chance to update |
| 51 | * or cancel the size of the io |
| 52 | */ |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 53 | ASYNC_HP = 0x10, |
| 54 | }; |
| 55 | |
| 56 | struct osc_async_page { |
| 57 | int oap_magic; |
| 58 | unsigned short oap_cmd; |
| 59 | unsigned short oap_interrupted:1; |
| 60 | |
| 61 | struct list_head oap_pending_item; |
| 62 | struct list_head oap_rpc_item; |
| 63 | |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 64 | u64 oap_obj_off; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 65 | unsigned oap_page_off; |
| 66 | enum async_flags oap_async_flags; |
| 67 | |
| 68 | struct brw_page oap_brw_page; |
| 69 | |
| 70 | struct ptlrpc_request *oap_request; |
| 71 | struct client_obd *oap_cli; |
| 72 | struct osc_object *oap_obj; |
| 73 | |
| 74 | struct ldlm_lock *oap_ldlm_lock; |
| 75 | spinlock_t oap_lock; |
| 76 | }; |
| 77 | |
| 78 | #define oap_page oap_brw_page.pg |
| 79 | #define oap_count oap_brw_page.count |
| 80 | #define oap_brw_flags oap_brw_page.flag |
| 81 | |
Jinshan Xiong | 77605e4 | 2016-03-30 19:48:30 -0400 | [diff] [blame] | 82 | static inline struct osc_async_page *brw_page2oap(struct brw_page *pga) |
| 83 | { |
| 84 | return (struct osc_async_page *)container_of(pga, struct osc_async_page, |
| 85 | oap_brw_page); |
| 86 | } |
| 87 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 88 | struct osc_cache_waiter { |
| 89 | struct list_head ocw_entry; |
| 90 | wait_queue_head_t ocw_waitq; |
| 91 | struct osc_async_page *ocw_oap; |
| 92 | int ocw_grant; |
| 93 | int ocw_rc; |
| 94 | }; |
| 95 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 96 | void osc_wake_cache_waiters(struct client_obd *cli); |
| 97 | int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes); |
| 98 | void osc_update_next_shrink(struct client_obd *cli); |
| 99 | |
| 100 | /* |
| 101 | * cl integration. |
| 102 | */ |
Greg Kroah-Hartman | 3ee3001 | 2014-07-11 22:16:18 -0700 | [diff] [blame] | 103 | #include "../include/cl_object.h" |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 104 | |
| 105 | extern struct ptlrpc_request_set *PTLRPCD_SET; |
| 106 | |
Jinshan Xiong | 06563b5 | 2016-03-30 19:48:40 -0400 | [diff] [blame] | 107 | typedef int (*osc_enqueue_upcall_f)(void *cookie, struct lustre_handle *lockh, |
| 108 | int rc); |
| 109 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 110 | int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, |
| 111 | __u64 *flags, ldlm_policy_data_t *policy, |
| 112 | struct ost_lvb *lvb, int kms_valid, |
Jinshan Xiong | 06563b5 | 2016-03-30 19:48:40 -0400 | [diff] [blame] | 113 | osc_enqueue_upcall_f upcall, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 114 | void *cookie, struct ldlm_enqueue_info *einfo, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 115 | struct ptlrpc_request_set *rqset, int async, int agl); |
| 116 | int osc_cancel_base(struct lustre_handle *lockh, __u32 mode); |
| 117 | |
| 118 | int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, |
| 119 | __u32 type, ldlm_policy_data_t *policy, __u32 mode, |
Dmitry Eremin | 875332d | 2014-06-22 21:32:08 -0400 | [diff] [blame] | 120 | __u64 *flags, void *data, struct lustre_handle *lockh, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 121 | int unref); |
| 122 | |
| 123 | int osc_setattr_async_base(struct obd_export *exp, struct obd_info *oinfo, |
| 124 | struct obd_trans_info *oti, |
| 125 | obd_enqueue_update_f upcall, void *cookie, |
| 126 | struct ptlrpc_request_set *rqset); |
| 127 | int osc_punch_base(struct obd_export *exp, struct obd_info *oinfo, |
| 128 | obd_enqueue_update_f upcall, void *cookie, |
| 129 | struct ptlrpc_request_set *rqset); |
| 130 | int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo, |
| 131 | obd_enqueue_update_f upcall, void *cookie, |
| 132 | struct ptlrpc_request_set *rqset); |
| 133 | |
| 134 | int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); |
| 135 | int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, |
Olaf Weber | c5c4c6f | 2015-09-14 18:41:35 -0400 | [diff] [blame] | 136 | struct list_head *ext_list, int cmd); |
Jinshan Xiong | 2579d8d | 2016-03-30 19:48:27 -0400 | [diff] [blame] | 137 | int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, |
| 138 | int target, bool force); |
Jinshan Xiong | 5196e42 | 2016-03-30 19:48:26 -0400 | [diff] [blame] | 139 | int osc_lru_reclaim(struct client_obd *cli); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 140 | |
Jinshan Xiong | f56b355 | 2016-03-30 19:48:31 -0400 | [diff] [blame] | 141 | unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 142 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 143 | int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); |
| 144 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 145 | int lproc_osc_attach_seqstat(struct obd_device *dev); |
| 146 | void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 147 | |
| 148 | extern struct lu_device_type osc_device_type; |
| 149 | |
| 150 | static inline int osc_recoverable_error(int rc) |
| 151 | { |
| 152 | return (rc == -EIO || rc == -EROFS || rc == -ENOMEM || |
| 153 | rc == -EAGAIN || rc == -EINPROGRESS); |
| 154 | } |
| 155 | |
| 156 | static inline unsigned long rpcs_in_flight(struct client_obd *cli) |
| 157 | { |
| 158 | return cli->cl_r_in_flight + cli->cl_w_in_flight; |
| 159 | } |
| 160 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 161 | struct osc_device { |
| 162 | struct cl_device od_cl; |
| 163 | struct obd_export *od_exp; |
| 164 | |
| 165 | /* Write stats is actually protected by client_obd's lock. */ |
| 166 | struct osc_stats { |
| 167 | uint64_t os_lockless_writes; /* by bytes */ |
| 168 | uint64_t os_lockless_reads; /* by bytes */ |
| 169 | uint64_t os_lockless_truncates; /* by times */ |
| 170 | } od_stats; |
| 171 | |
| 172 | /* configuration item(s) */ |
| 173 | int od_contention_time; |
| 174 | int od_lockless_truncate; |
| 175 | }; |
| 176 | |
| 177 | static inline struct osc_device *obd2osc_dev(const struct obd_device *d) |
| 178 | { |
| 179 | return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev); |
| 180 | } |
| 181 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 182 | extern struct kmem_cache *osc_quota_kmem; |
| 183 | struct osc_quota_info { |
| 184 | /** linkage for quota hash table */ |
| 185 | struct hlist_node oqi_hash; |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 186 | u32 oqi_id; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 187 | }; |
Mike Rapoport | c9f6bb9 | 2015-10-13 16:03:42 +0300 | [diff] [blame] | 188 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 189 | int osc_quota_setup(struct obd_device *obd); |
| 190 | int osc_quota_cleanup(struct obd_device *obd); |
| 191 | int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[], |
Oleg Drokin | 21aef7d | 2014-08-15 12:55:56 -0400 | [diff] [blame] | 192 | u32 valid, u32 flags); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 193 | int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[]); |
| 194 | int osc_quotactl(struct obd_device *unused, struct obd_export *exp, |
| 195 | struct obd_quotactl *oqctl); |
| 196 | int osc_quotacheck(struct obd_device *unused, struct obd_export *exp, |
| 197 | struct obd_quotactl *oqctl); |
| 198 | int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk); |
Prakash Surya | ac5b148 | 2016-04-27 18:21:04 -0400 | [diff] [blame] | 199 | void osc_inc_unstable_pages(struct ptlrpc_request *req); |
| 200 | void osc_dec_unstable_pages(struct ptlrpc_request *req); |
Prakash Surya | ad47928 | 2016-04-27 18:21:06 -0400 | [diff] [blame] | 201 | int osc_over_unstable_soft_limit(struct client_obd *cli); |
Prakash Surya | ac5b148 | 2016-04-27 18:21:04 -0400 | [diff] [blame] | 202 | |
Jinshan Xiong | 06563b5 | 2016-03-30 19:48:40 -0400 | [diff] [blame] | 203 | struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env, |
| 204 | struct osc_object *obj, pgoff_t index, |
| 205 | int pending, int canceling); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 206 | |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 207 | #endif /* OSC_INTERNAL_H */ |