X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fosc%2Fosc_internal.h;h=b30fc9b1bac3ef744230e6ed4dabad2f13d0ed60;hb=8cad1d968ad4efee46d08aee1e6a6266d4713e84;hp=d6c979bb8866a4dc6b90990cf5ebe68e4f8eaa2e;hpb=1aad983a07178319e26949ae36edbf5945e87c24;p=fs%2Flustre-release.git diff --git a/lustre/osc/osc_internal.h b/lustre/osc/osc_internal.h index d6c979b..b30fc9b 100644 --- a/lustre/osc/osc_internal.h +++ b/lustre/osc/osc_internal.h @@ -26,7 +26,7 @@ * 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. */ /* @@ -39,14 +39,34 @@ #define OAP_MAGIC 8675309 +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, + ASYNC_SYNCFS = 0x20, +}; + +struct obd_async_page_ops { + int (*ap_make_ready)(const struct lu_env *env, void *data, int cmd); + int (*ap_refresh_count)(const struct lu_env *env, void *data, int cmd); + int (*ap_completion)(const struct lu_env *env, + void *data, int cmd, struct obdo *oa, int rc); +}; + 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; + cfs_list_t oap_pending_item; + cfs_list_t oap_urgent_item; + cfs_list_t oap_rpc_item; obd_off oap_obj_off; unsigned oap_page_off; @@ -54,17 +74,15 @@ struct osc_async_page { 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 obd_async_page_ops *oap_caller_ops; + const struct obd_async_page_ops *oap_caller_ops; void *oap_caller_data; - struct list_head oap_page_list; + cfs_list_t oap_page_list; struct ldlm_lock *oap_ldlm_lock; - spinlock_t oap_lock; + cfs_spinlock_t oap_lock; }; #define oap_page oap_brw_page.pg @@ -72,9 +90,9 @@ struct osc_async_page { #define oap_brw_flags oap_brw_page.flag struct osc_cache_waiter { - struct list_head ocw_entry; + cfs_list_t ocw_entry; cfs_waitq_t ocw_waitq; - struct osc_async_page *ocw_oap; + struct osc_async_page *ocw_oap; int ocw_rc; }; @@ -84,14 +102,80 @@ struct osc_cache_waiter { #define OSCC_FLAG_SYNC_IN_PROGRESS 0x08 /* only allow one thread to sync */ #define OSCC_FLAG_LOW 0x10 #define OSCC_FLAG_EXITING 0x20 +#define OSCC_FLAG_DEGRADED 0x40 +#define OSCC_FLAG_RDONLY 0x80 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); + struct lov_stripe_md **ea, struct obd_trans_info *oti); +int osc_create_async(struct obd_export *exp, struct obd_info *oinfo, + 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); + 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, long target); + +/* + * cl integration. + */ +#include + +extern struct ptlrpc_request_set *PTLRPCD_SET; + +int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, + int *flags, ldlm_policy_data_t *policy, + struct ost_lvb *lvb, int kms_valid, + obd_enqueue_update_f upcall, + void *cookie, struct ldlm_enqueue_info *einfo, + struct lustre_handle *lockh, + struct ptlrpc_request_set *rqset, int async); +int osc_cancel_base(struct lustre_handle *lockh, __u32 mode); + +int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, + __u32 type, ldlm_policy_data_t *policy, __u32 mode, + int *flags, void *data, struct lustre_handle *lockh, + int unref); + +int osc_setattr_async_base(struct obd_export *exp, struct obd_info *oinfo, + struct obd_trans_info *oti, + 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_prep_async_page(struct obd_export *exp, struct lov_stripe_md *lsm, + struct lov_oinfo *loi, cfs_page_t *page, + obd_off offset, const struct obd_async_page_ops *ops, + void *data, void **res, int nocache, + struct lustre_handle *lockh); +void osc_oap_to_pending(struct osc_async_page *oap); +int osc_oap_interrupted(const struct lu_env *env, struct osc_async_page *oap); +void loi_list_maint(struct client_obd *cli, struct lov_oinfo *loi); +void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli); + +int osc_queue_async_io(const struct lu_env *env, + struct obd_export *exp, struct lov_stripe_md *lsm, + struct lov_oinfo *loi, void *cookie, + int cmd, obd_off off, int count, + obd_flag brw_flags, enum async_flags async_flags); +int osc_teardown_async_page(struct obd_export *exp, + struct lov_stripe_md *lsm, + struct lov_oinfo *loi, void *cookie); +int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); +int osc_set_async_flags_base(struct client_obd *cli, + struct lov_oinfo *loi, struct osc_async_page *oap, + obd_flag async_flags); +int osc_enter_cache_try(const struct lu_env *env, + struct client_obd *cli, struct lov_oinfo *loi, + struct osc_async_page *oap, int transient); + +struct cl_page *osc_oap2cl_page(struct osc_async_page *oap); +extern cfs_spinlock_t osc_ast_guard; + +int osc_cleanup(struct obd_device *obd); +int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); #ifdef LPROCFS int lproc_osc_attach_seqstat(struct obd_device *dev); @@ -104,6 +188,8 @@ static inline void lprocfs_osc_init_vars(struct lprocfs_static_vars *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); @@ -112,8 +198,8 @@ static inline int osc_recoverable_error(int rc) /* return 1 if osc should be resend request */ static inline int osc_should_resend(int resend, struct client_obd *cli) { - return atomic_read(&cli->cl_resends) ? - atomic_read(&cli->cl_resends) > resend : 1; + return cfs_atomic_read(&cli->cl_resends) ? + cfs_atomic_read(&cli->cl_resends) > resend : 1; } #ifndef min_t @@ -121,4 +207,27 @@ 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); +} + +int osc_dlm_lock_pageref(struct ldlm_lock *dlm); + #endif /* OSC_INTERNAL_H */