X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fldlm%2Fldlm_internal.h;h=94cd1190a736ef683463cef4ceec860779995584;hp=3127e8c9f9cfd9f5495da6c3ef00ecd8e5a695b8;hb=f79f39bd69d40faea2bd06bd1c342430553e57b8;hpb=022b102258cd85314f4fa1fb8322638cc79f4634 diff --git a/lustre/ldlm/ldlm_internal.h b/lustre/ldlm/ldlm_internal.h index 3127e8c..94cd119 100644 --- a/lustre/ldlm/ldlm_internal.h +++ b/lustre/ldlm/ldlm_internal.h @@ -1,31 +1,63 @@ /* -*- 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. + * + * 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 2008 Sun Microsystems, Inc. All rights reserved + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. */ #define MAX_STRING_SIZE 128 -extern atomic_t ldlm_srv_namespace_nr; -extern atomic_t ldlm_cli_namespace_nr; -extern struct semaphore ldlm_srv_namespace_lock; -extern struct list_head ldlm_srv_namespace_list; -extern struct semaphore ldlm_cli_namespace_lock; -extern struct list_head ldlm_cli_namespace_list; +extern cfs_atomic_t ldlm_srv_namespace_nr; +extern cfs_atomic_t ldlm_cli_namespace_nr; +extern cfs_semaphore_t ldlm_srv_namespace_lock; +extern cfs_list_t ldlm_srv_namespace_list; +extern cfs_semaphore_t ldlm_cli_namespace_lock; +extern cfs_list_t ldlm_cli_namespace_list; -static inline atomic_t *ldlm_namespace_nr(ldlm_side_t client) +static inline cfs_atomic_t *ldlm_namespace_nr(ldlm_side_t client) { - return client == LDLM_NAMESPACE_SERVER ? + return client == LDLM_NAMESPACE_SERVER ? &ldlm_srv_namespace_nr : &ldlm_cli_namespace_nr; } -static inline struct list_head *ldlm_namespace_list(ldlm_side_t client) +static inline cfs_list_t *ldlm_namespace_list(ldlm_side_t client) { - return client == LDLM_NAMESPACE_SERVER ? + return client == LDLM_NAMESPACE_SERVER ? &ldlm_srv_namespace_list : &ldlm_cli_namespace_list; } -static inline struct semaphore *ldlm_namespace_lock(ldlm_side_t client) +static inline cfs_semaphore_t *ldlm_namespace_lock(ldlm_side_t client) { - return client == LDLM_NAMESPACE_SERVER ? + return client == LDLM_NAMESPACE_SERVER ? &ldlm_srv_namespace_lock : &ldlm_cli_namespace_lock; } @@ -43,19 +75,21 @@ enum { LDLM_CANCEL_LRUR = 1 << 3 /* Cancel locks from lru resize. */ }; -int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr, ldlm_sync_t sync, +int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr, ldlm_sync_t sync, int flags); -int ldlm_cancel_lru_local(struct ldlm_namespace *ns, struct list_head *cancels, - int count, int max, int cancel_flags, int flags); -int ldlm_cancel_lru_estimate(struct ldlm_namespace *ns, int count, int max, - int flags); +int ldlm_cancel_lru_local(struct ldlm_namespace *ns, + cfs_list_t *cancels, int count, int max, + int cancel_flags, int flags); +extern int ldlm_enqueue_min; +int ldlm_get_enq_timeout(struct ldlm_lock *lock); /* ldlm_resource.c */ int ldlm_resource_putref_locked(struct ldlm_resource *res); void ldlm_resource_insert_lock_after(struct ldlm_lock *original, struct ldlm_lock *new); -int ldlm_namespace_free_prior(struct ldlm_namespace *ns); -int ldlm_namespace_free_post(struct ldlm_namespace *ns, int force); +void ldlm_namespace_free_prior(struct ldlm_namespace *ns, + struct obd_import *imp, int force); +void ldlm_namespace_free_post(struct ldlm_namespace *ns); /* ldlm_lock.c */ /* Number of blocking/completion callbacks that will be sent in @@ -64,7 +98,7 @@ int ldlm_namespace_free_post(struct ldlm_namespace *ns, int force); struct ldlm_cb_set_arg { struct ptlrpc_request_set *set; - atomic_t restart; + cfs_atomic_t restart; __u32 type; /* LDLM_BL_CALLBACK or LDLM_CP_CALLBACK */ }; @@ -72,23 +106,25 @@ typedef enum { LDLM_WORK_BL_AST, LDLM_WORK_CP_AST, LDLM_WORK_REVOKE_AST -} ldlm_desc_ast_t; +} ldlm_desc_ast_t; -void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list); +void ldlm_grant_lock(struct ldlm_lock *lock, cfs_list_t *work_list); struct ldlm_lock * ldlm_lock_create(struct ldlm_namespace *ns, const struct ldlm_res_id *, - ldlm_type_t type, ldlm_mode_t, ldlm_blocking_callback, - ldlm_completion_callback, ldlm_glimpse_callback, void *data, - __u32 lvb_len); + ldlm_type_t type, ldlm_mode_t, + const struct ldlm_callback_suite *cbs, + void *data, __u32 lvb_len); ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *, struct ldlm_lock **, void *cookie, int *flags); void ldlm_lock_addref_internal(struct ldlm_lock *, __u32 mode); +void ldlm_lock_addref_internal_nolock(struct ldlm_lock *, __u32 mode); void ldlm_lock_decref_internal(struct ldlm_lock *, __u32 mode); +void ldlm_lock_decref_internal_nolock(struct ldlm_lock *, __u32 mode); void ldlm_add_ast_work_item(struct ldlm_lock *lock, struct ldlm_lock *new, - struct list_head *work_list); -int ldlm_reprocess_queue(struct ldlm_resource *res, struct list_head *queue, - struct list_head *work_list); -int ldlm_run_ast_work(struct list_head *rpc_list, ldlm_desc_ast_t ast_type); + cfs_list_t *work_list); +int ldlm_reprocess_queue(struct ldlm_resource *res, cfs_list_t *queue, + cfs_list_t *work_list); +int ldlm_run_ast_work(cfs_list_t *rpc_list, ldlm_desc_ast_t ast_type); int ldlm_lock_remove_from_lru(struct ldlm_lock *lock); int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock); void ldlm_lock_add_to_lru_nolock(struct ldlm_lock *lock); @@ -96,33 +132,35 @@ void ldlm_lock_add_to_lru(struct ldlm_lock *lock); void ldlm_lock_touch_in_lru(struct ldlm_lock *lock); void ldlm_lock_destroy_nolock(struct ldlm_lock *lock); +void ldlm_cancel_locks_for_export(struct obd_export *export); + /* ldlm_lockd.c */ int ldlm_bl_to_thread_lock(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld, struct ldlm_lock *lock); int ldlm_bl_to_thread_list(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld, - struct list_head *cancels, int count); + cfs_list_t *cancels, int count, int mode); void ldlm_handle_bl_callback(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld, struct ldlm_lock *lock); /* ldlm_plain.c */ int ldlm_process_plain_lock(struct ldlm_lock *lock, int *flags, int first_enq, - ldlm_error_t *err, struct list_head *work_list); + ldlm_error_t *err, cfs_list_t *work_list); /* ldlm_extent.c */ int ldlm_process_extent_lock(struct ldlm_lock *lock, int *flags, int first_enq, - ldlm_error_t *err, struct list_head *work_list); + ldlm_error_t *err, cfs_list_t *work_list); void ldlm_extent_add_lock(struct ldlm_resource *res, struct ldlm_lock *lock); void ldlm_extent_unlink_lock(struct ldlm_lock *lock); /* ldlm_flock.c */ int ldlm_process_flock_lock(struct ldlm_lock *req, int *flags, int first_enq, - ldlm_error_t *err, struct list_head *work_list); + ldlm_error_t *err, cfs_list_t *work_list); /* ldlm_inodebits.c */ int ldlm_process_inodebits_lock(struct ldlm_lock *lock, int *flags, int first_enq, ldlm_error_t *err, - struct list_head *work_list); + cfs_list_t *work_list); /* l_lock.c */ void l_check_ns_lock(struct ldlm_namespace *ns); @@ -150,9 +188,10 @@ static inline struct ldlm_extent * ldlm_interval_extent(struct ldlm_interval *node) { struct ldlm_lock *lock; - LASSERT(!list_empty(&node->li_group)); + LASSERT(!cfs_list_empty(&node->li_group)); - lock = list_entry(node->li_group.next, struct ldlm_lock, l_sl_policy); + lock = cfs_list_entry(node->li_group.next, struct ldlm_lock, + l_sl_policy); return &lock->l_policy_data.l_extent; } @@ -173,9 +212,9 @@ typedef enum ldlm_policy_res ldlm_policy_res_t; struct ldlm_pool *pl = data; \ type tmp; \ \ - spin_lock(&pl->pl_lock); \ + cfs_spin_lock(&pl->pl_lock); \ tmp = pl->pl_##var; \ - spin_unlock(&pl->pl_lock); \ + cfs_spin_unlock(&pl->pl_lock); \ \ return lprocfs_rd_uint(page, start, off, count, eof, &tmp); \ } \ @@ -195,10 +234,24 @@ typedef enum ldlm_policy_res ldlm_policy_res_t; return rc; \ } \ \ - spin_lock(&pl->pl_lock); \ + cfs_spin_lock(&pl->pl_lock); \ pl->pl_##var = tmp; \ - spin_unlock(&pl->pl_lock); \ + cfs_spin_unlock(&pl->pl_lock); \ \ return rc; \ } \ struct __##var##__dummy_write {;} /* semicolon catcher */ + +static inline int is_granted_or_cancelled(struct ldlm_lock *lock) +{ + int ret = 0; + + lock_res_and_lock(lock); + if (((lock->l_req_mode == lock->l_granted_mode) && + !(lock->l_flags & LDLM_FL_CP_REQD)) || + (lock->l_flags & LDLM_FL_FAILED)) + ret = 1; + unlock_res_and_lock(lock); + + return ret; +}