diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/osc/osc_internal.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/osc/osc_internal.h | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h deleted file mode 100644 index 32db150fd42e..000000000000 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ /dev/null @@ -1,236 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * 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.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2015, 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 - -#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_rpc_item; - - u64 oap_obj_off; - unsigned int oap_page_off; - enum async_flags oap_async_flags; - - struct brw_page oap_brw_page; - - struct ptlrpc_request *oap_request; - struct client_obd *oap_cli; - struct osc_object *oap_obj; - - 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 - -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 <cl_object.h> - -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, - enum ldlm_type type, union ldlm_policy_data *policy, - enum ldlm_mode 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 *exp, 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); -unsigned long osc_lru_reserve(struct client_obd *cli, unsigned long npages); -void osc_lru_unreserve(struct client_obd *cli, unsigned long npages); - -unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock); - -int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); - -int lproc_osc_attach_seqstat(struct obd_device *dev); -void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars); - -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; -} - -static inline char *cli_name(struct client_obd *cli) -{ - return cli->cl_import->imp_obd->obd_name; -} - -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 { - u64 os_lockless_writes; /* by bytes */ - u64 os_lockless_reads; /* by bytes */ - u64 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 lu_kmem_descr osc_caches[]; - -extern struct kmem_cache *osc_quota_kmem; -struct osc_quota_info { - /** linkage for quota hash table */ - struct hlist_node oqi_hash; - u32 oqi_id; -}; - -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[], - u32 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 = BIT(0), - /** - * Return the lock even if it is being canceled. - */ - OSC_DAP_FL_CANCELING = BIT(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); - -int osc_object_invalidate(const struct lu_env *env, struct osc_object *osc); - -/** osc shrink list to link all osc client obd */ -extern struct list_head osc_shrink_list; -/** spin lock to protect osc_shrink_list */ -extern spinlock_t osc_shrink_lock; -unsigned long osc_cache_shrink_count(struct shrinker *sk, - struct shrink_control *sc); -unsigned long osc_cache_shrink_scan(struct shrinker *sk, - struct shrink_control *sc); - -#endif /* OSC_INTERNAL_H */ |