X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fosc%2Fosc_internal.h;h=e13eadf23a08c8647733f1f37a5532901660baf3;hp=466bd53df39303166ce7cccaedba94ca1a973d29;hb=fcd45488711a;hpb=1cca7661614e9f1988805229bb61945e99fe4510 diff --git a/lustre/osc/osc_internal.h b/lustre/osc/osc_internal.h index 466bd53..e13eadf 100644 --- a/lustre/osc/osc_internal.h +++ b/lustre/osc/osc_internal.h @@ -1,59 +1,232 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START * - * Copyright (C) 2003 Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This code is issued under the GNU General Public License. - * See the file COPYING in this distribution + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2011, 2014, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. */ #ifndef OSC_INTERNAL_H #define OSC_INTERNAL_H -#include /* for PTL_MTU and PTL_MD_MAX_PAGES */ - +#define OAP_MAGIC 8675309 -/* bug 1578: negotiate BRW_MAX_SIZE with the OST, instead of hard-coding it */ -#define OSC_BRW_MAX_SIZE PTL_MTU -#define OSC_BRW_MAX_IOV PTL_MD_MAX_PAGES +struct lu_env; -#define OAP_MAGIC 8675309 +enum async_flags { + ASYNC_READY = 0x1, /* ap_make_ready will not be called before this + page is added to an rpc */ + ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */ + ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called + to give the caller a chance to update + or cancel the size of the io */ + ASYNC_HP = 0x10, +}; struct osc_async_page { int oap_magic; - struct list_head oap_pending_item; - struct list_head oap_urgent_item; - struct list_head oap_rpc_item; - struct page *oap_page; - int oap_cmd; - - obd_off oap_obj_off; - obd_off oap_page_off; - int oap_count; - obd_flag oap_brw_flags; + unsigned short oap_cmd; + unsigned short oap_interrupted:1; + + struct list_head oap_pending_item; + struct list_head oap_rpc_item; + + loff_t oap_obj_off; + unsigned oap_page_off; enum async_flags oap_async_flags; - struct obd_sync_io_container *oap_osic; + struct brw_page oap_brw_page; + + struct ptlrpc_request *oap_request; + struct client_obd *oap_cli; + struct osc_object *oap_obj; - struct obd_async_page_ops *oap_caller_ops; - void *oap_caller_data; + spinlock_t oap_lock; }; -#define OSCC_FLAG_RECOVERING 1 -#define OSCC_FLAG_CREATING 2 -#define OSCC_FLAG_NOSPC 4 /* can't create more objects on this OST */ +#define oap_page oap_brw_page.pg +#define oap_count oap_brw_page.count +#define oap_brw_flags oap_brw_page.flag + +static inline struct osc_async_page *brw_page2oap(struct brw_page *pga) +{ + return (struct osc_async_page *)container_of(pga, struct osc_async_page, + oap_brw_page); +} + +struct osc_cache_waiter { + struct list_head ocw_entry; + wait_queue_head_t ocw_waitq; + struct osc_async_page *ocw_oap; + int ocw_grant; + int ocw_rc; +}; + +void osc_wake_cache_waiters(struct client_obd *cli); +int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes); +void osc_update_next_shrink(struct client_obd *cli); + +/* + * cl integration. + */ +#include + +extern struct ptlrpc_request_set *PTLRPCD_SET; + +typedef int (*osc_enqueue_upcall_f)(void *cookie, struct lustre_handle *lockh, + int rc); -int osc_create(struct obd_export *exp, struct obdo *oa, - struct lov_stripe_md **ea, struct obd_trans_info *oti); -int osc_real_create(struct obd_export *exp, struct obdo *oa, - struct lov_stripe_md **ea, struct obd_trans_info *oti); -void oscc_init(struct obd_export *exp); -void osc_adjust_cache(struct client_obd *cli); +int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, + __u64 *flags, ldlm_policy_data_t *policy, + struct ost_lvb *lvb, int kms_valid, + osc_enqueue_upcall_f upcall, + void *cookie, struct ldlm_enqueue_info *einfo, + struct ptlrpc_request_set *rqset, int async, int agl); -#ifdef __KERNEL__ +int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, + __u32 type, ldlm_policy_data_t *policy, __u32 mode, + __u64 *flags, void *data, struct lustre_handle *lockh, + int unref); + +int osc_setattr_async(struct obd_export *exp, struct obd_info *oinfo, + obd_enqueue_update_f upcall, void *cookie, + struct ptlrpc_request_set *rqset); +int osc_punch_base(struct obd_export *exp, struct obd_info *oinfo, + obd_enqueue_update_f upcall, void *cookie, + struct ptlrpc_request_set *rqset); +int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo, + obd_enqueue_update_f upcall, void *cookie, + struct ptlrpc_request_set *rqset); + +int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); +int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, + struct list_head *ext_list, int cmd, pdl_policy_t p); +long osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, + long target, bool force); +long osc_lru_reclaim(struct client_obd *cli); + +extern spinlock_t osc_ast_guard; +extern struct lu_kmem_descr osc_caches[]; +extern struct lock_class_key osc_ast_guard_class; + +unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock); + +int osc_cleanup(struct obd_device *obd); +int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); + +#ifdef CONFIG_PROC_FS +extern struct lprocfs_vars lprocfs_osc_obd_vars[]; int lproc_osc_attach_seqstat(struct obd_device *dev); #else -static inline int lproc_osc_attach_seqstat(struct obd_device *dev) {} +static inline int lproc_osc_attach_seqstat(struct obd_device *dev) {return 0;} +#endif + +extern struct lu_device_type osc_device_type; + +static inline int osc_recoverable_error(int rc) +{ + return (rc == -EIO || rc == -EROFS || rc == -ENOMEM || + rc == -EAGAIN || rc == -EINPROGRESS); +} + +static inline unsigned long rpcs_in_flight(struct client_obd *cli) +{ + return cli->cl_r_in_flight + cli->cl_w_in_flight; +} + +#ifndef min_t +#define min_t(type,x,y) \ + ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) #endif +struct osc_device { + struct cl_device od_cl; + struct obd_export *od_exp; + + /* Write stats is actually protected by client_obd's lock. */ + struct osc_stats { + uint64_t os_lockless_writes; /* by bytes */ + uint64_t os_lockless_reads; /* by bytes */ + uint64_t os_lockless_truncates; /* by times */ + } od_stats; + + /* configuration item(s) */ + int od_contention_time; + int od_lockless_truncate; +}; + +static inline struct osc_device *obd2osc_dev(const struct obd_device *d) +{ + return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev); +} + +extern struct kmem_cache *osc_quota_kmem; +struct osc_quota_info { + /** linkage for quota hash table */ + struct hlist_node oqi_hash; + u32 oqi_id; +}; + +struct osc_async_args { + struct obd_info *aa_oi; +}; + +int osc_quota_setup(struct obd_device *obd); +int osc_quota_cleanup(struct obd_device *obd); +int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[], + u64 valid, u32 flags); +int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[]); +int osc_quotactl(struct obd_device *unused, struct obd_export *exp, + struct obd_quotactl *oqctl); +void osc_inc_unstable_pages(struct ptlrpc_request *req); +void osc_dec_unstable_pages(struct ptlrpc_request *req); +bool osc_over_unstable_soft_limit(struct client_obd *cli); +/** + * Bit flags for osc_dlm_lock_at_pageoff(). + */ +enum osc_dap_flags { + /** + * Just check if the desired lock exists, it won't hold reference + * count on lock. + */ + OSC_DAP_FL_TEST_LOCK = 1 << 0, + /** + * Return the lock even if it is being canceled. + */ + OSC_DAP_FL_CANCELING = 1 << 1 +}; +struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env, + struct osc_object *obj, pgoff_t index, + enum osc_dap_flags flags); +void osc_pack_req_body(struct ptlrpc_request *req, struct obd_info *oinfo); +void osc_set_capa_size(struct ptlrpc_request *req, + const struct req_msg_field *field, struct obd_capa *oc); #endif /* OSC_INTERNAL_H */