-/* -*- 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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ */
+/*
+ * 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_mutex_t ldlm_srv_namespace_lock;
+extern cfs_list_t ldlm_srv_namespace_list;
+extern cfs_mutex_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_mutex_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;
}
LDLM_CANCEL_AGED = 1 << 0, /* Cancel aged locks (non lru resize). */
LDLM_CANCEL_PASSED = 1 << 1, /* Cancel passed number of locks. */
LDLM_CANCEL_SHRINK = 1 << 2, /* Cancel locks from shrinker. */
- LDLM_CANCEL_LRUR = 1 << 3 /* Cancel locks from lru resize. */
+ LDLM_CANCEL_LRUR = 1 << 3, /* Cancel locks from lru resize. */
+ LDLM_CANCEL_NO_WAIT = 1 << 4 /* Cancel locks w/o blocking (neither
+ * sending nor waiting for any rpcs) */
};
-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,
+ ldlm_cancel_flags_t 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
- * parallel (see bug 11301). */
-#define PARALLEL_AST_LIMIT 200
-
struct ldlm_cb_set_arg {
- struct ptlrpc_request_set *set;
- atomic_t restart;
- __u32 type; /* LDLM_BL_CALLBACK or LDLM_CP_CALLBACK */
+ struct ptlrpc_request_set *set;
+ int type; /* LDLM_{CP,BL,GL}_CALLBACK */
+ cfs_atomic_t restart;
+ cfs_list_t *list;
};
typedef enum {
- LDLM_WORK_BL_AST,
- LDLM_WORK_CP_AST,
- LDLM_WORK_REVOKE_AST
-} ldlm_desc_ast_t;
+ LDLM_WORK_BL_AST,
+ LDLM_WORK_CP_AST,
+ LDLM_WORK_REVOKE_AST,
+ LDLM_WORK_GL_AST
+} 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);
+#ifdef HAVE_SERVER_SUPPORT
+int ldlm_reprocess_queue(struct ldlm_resource *res, cfs_list_t *queue,
+ cfs_list_t *work_list);
+#endif
+int ldlm_run_ast_work(struct ldlm_namespace *ns, cfs_list_t *rpc_list,
+ ldlm_desc_ast_t ast_type);
+int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq);
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);
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);
+#ifdef HAVE_SERVER_SUPPORT
/* 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_inodebits.c */
+int ldlm_process_inodebits_lock(struct ldlm_lock *lock, int *flags,
+ int first_enq, ldlm_error_t *err,
+ cfs_list_t *work_list);
+#endif
/* ldlm_extent.c */
+#ifdef HAVE_SERVER_SUPPORT
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);
+#endif
+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_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);
+ ldlm_error_t *err, cfs_list_t *work_list);
+int ldlm_init_flock_export(struct obd_export *exp);
+void ldlm_destroy_flock_export(struct obd_export *exp);
/* l_lock.c */
void l_check_ns_lock(struct ldlm_namespace *ns);
struct ldlm_bl_pool *ldlm_bl_pool;
};
+/* interval tree, for LDLM_EXTENT. */
+extern cfs_mem_cache_t *ldlm_interval_slab; /* slab cache for ldlm_interval */
+extern void ldlm_interval_attach(struct ldlm_interval *n, struct ldlm_lock *l);
+extern struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l);
+extern struct ldlm_interval *ldlm_interval_alloc(struct ldlm_lock *lock);
+extern void ldlm_interval_free(struct ldlm_interval *node);
+/* this function must be called with res lock held */
+static inline struct ldlm_extent *
+ldlm_interval_extent(struct ldlm_interval *node)
+{
+ struct ldlm_lock *lock;
+ LASSERT(!cfs_list_empty(&node->li_group));
+
+ lock = cfs_list_entry(node->li_group.next, struct ldlm_lock,
+ l_sl_policy);
+ return &lock->l_policy_data.l_extent;
+}
+
int ldlm_init(void);
void ldlm_exit(void);
enum ldlm_policy_res {
LDLM_POLICY_CANCEL_LOCK,
- LDLM_POLICY_KEEP_LOCK
+ LDLM_POLICY_KEEP_LOCK,
+ LDLM_POLICY_SKIP_LOCK
};
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); \
} \
int rc; \
\
rc = lprocfs_wr_uint(file, buffer, count, &tmp); \
- if (rc) { \
+ if (rc < 0) { \
CERROR("Can't parse user input, rc = %d\n", rc); \
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 | LDLM_FL_CANCEL)))
+ ret = 1;
+ unlock_res_and_lock(lock);
+
+ return ret;
+}
+
+typedef void (*ldlm_policy_wire_to_local_t)(const ldlm_wire_policy_data_t *,
+ ldlm_policy_data_t *);
+
+typedef void (*ldlm_policy_local_to_wire_t)(const ldlm_policy_data_t *,
+ ldlm_wire_policy_data_t *);
+
+void ldlm_plain_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
+ ldlm_policy_data_t *lpolicy);
+void ldlm_plain_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
+ ldlm_wire_policy_data_t *wpolicy);
+void ldlm_ibits_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
+ ldlm_policy_data_t *lpolicy);
+void ldlm_ibits_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
+ ldlm_wire_policy_data_t *wpolicy);
+void ldlm_extent_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
+ ldlm_policy_data_t *lpolicy);
+void ldlm_extent_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
+ ldlm_wire_policy_data_t *wpolicy);
+void ldlm_flock_policy_wire18_to_local(const ldlm_wire_policy_data_t *wpolicy,
+ ldlm_policy_data_t *lpolicy);
+void ldlm_flock_policy_wire21_to_local(const ldlm_wire_policy_data_t *wpolicy,
+ ldlm_policy_data_t *lpolicy);
+
+void ldlm_flock_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
+ ldlm_wire_policy_data_t *wpolicy);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff