X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fosc%2Fosc_internal.h;h=9a03ba341f4a32de953281883c62225c9404a377;hp=1ac3d5187d5bf7edadf52635192f041bed7cd0e2;hb=8f01f8b51d114b0d2d54a5ab7db3161782e52447;hpb=70e80ade90af09300396706b8910e196a7928520 diff --git a/lustre/osc/osc_internal.h b/lustre/osc/osc_internal.h index 1ac3d51..9a03ba3 100644 --- a/lustre/osc/osc_internal.h +++ b/lustre/osc/osc_internal.h @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -16,8 +14,8 @@ * 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 [sun.com URL with a - * copy of GPLv2]. + * 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 @@ -26,8 +24,10 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * 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/ @@ -39,85 +39,136 @@ #define OAP_MAGIC 8675309 +extern atomic_t osc_pool_req_count; +extern unsigned int osc_reqpool_maxreqcount; +extern struct ptlrpc_request_pool *osc_rq_pool; + +struct lu_env; + +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; unsigned short oap_cmd; unsigned short oap_interrupted:1; - struct list_head oap_pending_item; - struct list_head oap_urgent_item; - struct list_head oap_rpc_item; + struct list_head oap_pending_item; + struct list_head oap_rpc_item; - obd_off oap_obj_off; + loff_t oap_obj_off; unsigned oap_page_off; enum async_flags oap_async_flags; struct brw_page oap_brw_page; - struct oig_callback_context oap_occ; - struct obd_io_group *oap_oig; struct ptlrpc_request *oap_request; struct client_obd *oap_cli; - struct lov_oinfo *oap_loi; + struct osc_object *oap_obj; - struct obd_async_page_ops *oap_caller_ops; - void *oap_caller_data; - struct list_head oap_page_list; - struct ldlm_lock *oap_ldlm_lock; - spinlock_t oap_lock; + spinlock_t oap_lock; }; #define oap_page oap_brw_page.pg #define oap_count oap_brw_page.count #define oap_brw_flags oap_brw_page.flag -#define OAP_FROM_COOKIE(c) \ - (LASSERT(((struct osc_async_page *)(c))->oap_magic == OAP_MAGIC), \ - (struct osc_async_page *)(c)) +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; - cfs_waitq_t ocw_waitq; - struct osc_async_page *ocw_oap; - int ocw_rc; + struct list_head ocw_entry; + wait_queue_head_t ocw_waitq; + struct osc_async_page *ocw_oap; + int ocw_grant; + int ocw_rc; }; -#define OSCC_FLAG_RECOVERING 0x01 -#define OSCC_FLAG_CREATING 0x02 -#define OSCC_FLAG_NOSPC 0x04 /* can't create more objects on OST */ -#define OSCC_FLAG_SYNC_IN_PROGRESS 0x08 /* only allow one thread to sync */ -#define OSCC_FLAG_LOW 0x10 -#define OSCC_FLAG_EXITING 0x20 - -int osc_precreate(struct obd_export *exp); -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_device *obd); 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); -#ifdef LPROCFS +/* + * 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_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, + __u64 *flags, union ldlm_policy_data *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); + +int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, + __u32 type, union ldlm_policy_data *policy, __u32 mode, + __u64 *flags, void *data, struct lustre_handle *lockh, + int unref); + +int osc_setattr_async(struct obd_export *exp, struct obdo *oa, + obd_enqueue_update_f upcall, void *cookie, + struct ptlrpc_request_set *rqset); +int osc_punch_base(struct obd_export *exp, struct obdo *oa, + obd_enqueue_update_f upcall, void *cookie, + struct ptlrpc_request_set *rqset); +int osc_sync_base(struct osc_object *obj, struct obdo *oa, + 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); +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, unsigned long npages); + +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); -void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars); #else static inline int lproc_osc_attach_seqstat(struct obd_device *dev) {return 0;} -static inline void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars) -{ - memset(lvars, 0, sizeof(*lvars)); -} #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); + 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; } -/* return 1 if osc should be resend request */ -static inline int osc_should_resend(int resend, struct client_obd *cli) +static inline char *cli_name(struct client_obd *cli) { - return atomic_read(&cli->cl_resends) ? - atomic_read(&cli->cl_resends) > resend : 1; + return cli->cl_import->imp_obd->obd_name; } #ifndef min_t @@ -125,4 +176,65 @@ static inline int osc_should_resend(int resend, struct client_obd *cli) ({ 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 obdo *oa); +int osc_object_invalidate(const struct lu_env *env, struct osc_object *osc); #endif /* OSC_INTERNAL_H */