1d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao/* 2d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * GPL HEADER START 3d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 4d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 6d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * This program is free software; you can redistribute it and/or modify 7d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * it under the terms of the GNU General Public License version 2 only, 8d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * as published by the Free Software Foundation. 9d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 10d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * This program is distributed in the hope that it will be useful, but 11d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * WITHOUT ANY WARRANTY; without even the implied warranty of 12d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * General Public License version 2 for more details (a copy is included 14d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * in the LICENSE file that accompanied this code). 15d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 16d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * You should have received a copy of the GNU General Public License 17d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * version 2 along with this program; If not, see 18d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf 19d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 20d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 21d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * CA 95054 USA or visit www.sun.com if you need additional information or 22d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * have any questions. 23d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 24d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * GPL HEADER END 25d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao */ 26d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao/* 27d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 28d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * Use is subject to license terms. 29d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * 30d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * Copyright (c) 2011, 2012, Intel Corporation. 31d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao */ 32d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao/* 33d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * This file is part of Lustre, http://www.lustre.org/ 34d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * Lustre is a trademark of Sun Microsystems, Inc. 35d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao */ 36d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 37d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#ifndef OSC_INTERNAL_H 38d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#define OSC_INTERNAL_H 39d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 40d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#define OAP_MAGIC 8675309 41d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 42d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostruct lu_env; 43d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 44d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoenum async_flags { 45d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao ASYNC_READY = 0x1, /* ap_make_ready will not be called before this 46d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao page is added to an rpc */ 47d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */ 48d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called 49d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao to give the caller a chance to update 50d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao or cancel the size of the io */ 51d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao ASYNC_HP = 0x10, 52d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao}; 53d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 54d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostruct osc_async_page { 55d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao int oap_magic; 56d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao unsigned short oap_cmd; 57d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao unsigned short oap_interrupted:1; 58d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 59d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct list_head oap_pending_item; 60d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct list_head oap_rpc_item; 61d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 6221aef7d9d654416b8167ad8047a628d3968a97daOleg Drokin u64 oap_obj_off; 63d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao unsigned oap_page_off; 64d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao enum async_flags oap_async_flags; 65d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 66d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct brw_page oap_brw_page; 67d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 68d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ptlrpc_request *oap_request; 69d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct client_obd *oap_cli; 70d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct osc_object *oap_obj; 71d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 72d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ldlm_lock *oap_ldlm_lock; 73d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao spinlock_t oap_lock; 74d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao}; 75d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 76d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#define oap_page oap_brw_page.pg 77d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#define oap_count oap_brw_page.count 78d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#define oap_brw_flags oap_brw_page.flag 79d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 80d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostruct osc_cache_waiter { 81d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct list_head ocw_entry; 82d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao wait_queue_head_t ocw_waitq; 83d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct osc_async_page *ocw_oap; 84d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao int ocw_grant; 85d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao int ocw_rc; 86d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao}; 87d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 88d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_create(const struct lu_env *env, struct obd_export *exp, 89d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct obdo *oa, struct lov_stripe_md **ea, 90d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct obd_trans_info *oti); 91d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_real_create(struct obd_export *exp, struct obdo *oa, 92d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct lov_stripe_md **ea, struct obd_trans_info *oti); 93d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taovoid osc_wake_cache_waiters(struct client_obd *cli); 94d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes); 95d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taovoid osc_update_next_shrink(struct client_obd *cli); 96d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 97d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao/* 98d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao * cl integration. 99d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao */ 1003ee300153882afefa2a093b4f5f456ef1b778530Greg Kroah-Hartman#include "../include/cl_object.h" 101d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 102d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoextern struct ptlrpc_request_set *PTLRPCD_SET; 103d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 104d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, 105d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao __u64 *flags, ldlm_policy_data_t *policy, 106d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ost_lvb *lvb, int kms_valid, 107d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao obd_enqueue_update_f upcall, 108d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao void *cookie, struct ldlm_enqueue_info *einfo, 109d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct lustre_handle *lockh, 110d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ptlrpc_request_set *rqset, int async, int agl); 111d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_cancel_base(struct lustre_handle *lockh, __u32 mode); 112d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 113d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, 114d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao __u32 type, ldlm_policy_data_t *policy, __u32 mode, 115875332d47f8c3a0c23ebe469bd8b31efb77d997aDmitry Eremin __u64 *flags, void *data, struct lustre_handle *lockh, 116d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao int unref); 117d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 118d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_setattr_async_base(struct obd_export *exp, struct obd_info *oinfo, 119d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct obd_trans_info *oti, 120d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao obd_enqueue_update_f upcall, void *cookie, 121d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ptlrpc_request_set *rqset); 122d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_punch_base(struct obd_export *exp, struct obd_info *oinfo, 123d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao obd_enqueue_update_f upcall, void *cookie, 124d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ptlrpc_request_set *rqset); 125d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_sync_base(struct obd_export *exp, struct obd_info *oinfo, 126d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao obd_enqueue_update_f upcall, void *cookie, 127d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct ptlrpc_request_set *rqset); 128d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 129d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); 130d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_build_rpc(const struct lu_env *env, struct client_obd *cli, 131d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct list_head *ext_list, int cmd, pdl_policy_t p); 132d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_lru_shrink(struct client_obd *cli, int target); 133d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 134d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoextern spinlock_t osc_ast_guard; 135d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 136d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_cleanup(struct obd_device *obd); 137d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); 138d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 139f267cdb464bcab7be965fa2a513675d9ad1e90f6Greg Kroah-Hartman#if defined (CONFIG_PROC_FS) 140d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint lproc_osc_attach_seqstat(struct obd_device *dev); 141d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taovoid lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars); 142d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#else 143d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostatic inline int lproc_osc_attach_seqstat(struct obd_device *dev) {return 0;} 144d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostatic inline void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars) 145d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao{ 146d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao memset(lvars, 0, sizeof(*lvars)); 147d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao} 148d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#endif 149d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 150d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoextern struct lu_device_type osc_device_type; 151d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 152d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostatic inline int osc_recoverable_error(int rc) 153d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao{ 154d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao return (rc == -EIO || rc == -EROFS || rc == -ENOMEM || 155d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao rc == -EAGAIN || rc == -EINPROGRESS); 156d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao} 157d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 158d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostatic inline unsigned long rpcs_in_flight(struct client_obd *cli) 159d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao{ 160d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao return cli->cl_r_in_flight + cli->cl_w_in_flight; 161d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao} 162d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 163d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#ifndef min_t 1641d8cb70c7bdda47125ed551fc390aa9597c5f264Greg Donald#define min_t(type, x, y) \ 165d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) 166d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#endif 167d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 168d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostruct osc_device { 169d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct cl_device od_cl; 170d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct obd_export *od_exp; 171d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 172d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao /* Write stats is actually protected by client_obd's lock. */ 173d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct osc_stats { 174d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao uint64_t os_lockless_writes; /* by bytes */ 175d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao uint64_t os_lockless_reads; /* by bytes */ 176d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao uint64_t os_lockless_truncates; /* by times */ 177d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao } od_stats; 178d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 179d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao /* configuration item(s) */ 180d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao int od_contention_time; 181d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao int od_lockless_truncate; 182d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao}; 183d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 184d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostatic inline struct osc_device *obd2osc_dev(const struct obd_device *d) 185d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao{ 186d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev); 187d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao} 188d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 189d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_dlm_lock_pageref(struct ldlm_lock *dlm); 190d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 191d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoextern struct kmem_cache *osc_quota_kmem; 192d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taostruct osc_quota_info { 193d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao /** linkage for quota hash table */ 194d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct hlist_node oqi_hash; 19521aef7d9d654416b8167ad8047a628d3968a97daOleg Drokin u32 oqi_id; 196d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao}; 197d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quota_setup(struct obd_device *obd); 198d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quota_cleanup(struct obd_device *obd); 199d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quota_setdq(struct client_obd *cli, const unsigned int qid[], 20021aef7d9d654416b8167ad8047a628d3968a97daOleg Drokin u32 valid, u32 flags); 201d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[]); 202d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quotactl(struct obd_device *unused, struct obd_export *exp, 203d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct obd_quotactl *oqctl); 204d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quotacheck(struct obd_device *unused, struct obd_export *exp, 205d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao struct obd_quotactl *oqctl); 206d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Taoint osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk); 207d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao 208d7e09d0397e84eefbabfd9cb353221f3c6448d83Peng Tao#endif /* OSC_INTERNAL_H */ 209