-/* -*- 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.
* 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, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define MAX_STRING_SIZE 128
-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;
+extern int ldlm_srv_namespace_nr;
+extern int ldlm_cli_namespace_nr;
+extern struct mutex ldlm_srv_namespace_lock;
+extern struct list_head ldlm_srv_namespace_list;
+extern struct mutex ldlm_cli_namespace_lock;
+extern struct list_head ldlm_cli_active_namespace_list;
+extern struct list_head ldlm_cli_inactive_namespace_list;
+extern unsigned int ldlm_cancel_unused_locks_before_replay;
+
+static inline int ldlm_namespace_nr_read(ldlm_side_t client)
+{
+ return client == LDLM_NAMESPACE_SERVER ?
+ ldlm_srv_namespace_nr : ldlm_cli_namespace_nr;
+}
+
+static inline void ldlm_namespace_nr_inc(ldlm_side_t client)
+{
+ if (client == LDLM_NAMESPACE_SERVER)
+ ldlm_srv_namespace_nr++;
+ else
+ ldlm_cli_namespace_nr++;
+}
+
+static inline void ldlm_namespace_nr_dec(ldlm_side_t client)
+{
+ if (client == LDLM_NAMESPACE_SERVER)
+ ldlm_srv_namespace_nr--;
+ else
+ ldlm_cli_namespace_nr--;
+}
-static inline cfs_atomic_t *ldlm_namespace_nr(ldlm_side_t client)
+static inline struct list_head *ldlm_namespace_list(ldlm_side_t client)
{
return client == LDLM_NAMESPACE_SERVER ?
- &ldlm_srv_namespace_nr : &ldlm_cli_namespace_nr;
+ &ldlm_srv_namespace_list : &ldlm_cli_active_namespace_list;
}
-static inline cfs_list_t *ldlm_namespace_list(ldlm_side_t client)
+static inline struct list_head *ldlm_namespace_inactive_list(ldlm_side_t client)
{
return client == LDLM_NAMESPACE_SERVER ?
- &ldlm_srv_namespace_list : &ldlm_cli_namespace_list;
+ &ldlm_srv_namespace_list : &ldlm_cli_inactive_namespace_list;
}
-static inline cfs_semaphore_t *ldlm_namespace_lock(ldlm_side_t client)
+static inline struct mutex *ldlm_namespace_lock(ldlm_side_t client)
{
return client == LDLM_NAMESPACE_SERVER ?
&ldlm_srv_namespace_lock : &ldlm_cli_namespace_lock;
}
-/* ldlm_request.c */
-typedef enum {
- LDLM_ASYNC,
- LDLM_SYNC,
-} ldlm_sync_t;
+/* ns_bref is the number of resources in this namespace */
+static inline int ldlm_ns_empty(struct ldlm_namespace *ns)
+{
+ return atomic_read(&ns->ns_bref) == 0;
+}
+void ldlm_namespace_move_to_active_locked(struct ldlm_namespace *, ldlm_side_t);
+void ldlm_namespace_move_to_inactive_locked(struct ldlm_namespace *, ldlm_side_t);
+struct ldlm_namespace *ldlm_namespace_first_locked(ldlm_side_t);
+
+/* ldlm_request.c */
/* Cancel lru flag, it indicates we cancel aged locks. */
enum {
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 flags);
+int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr,
+ ldlm_cancel_flags_t sync, int flags);
int ldlm_cancel_lru_local(struct ldlm_namespace *ns,
- cfs_list_t *cancels, int count, int max,
+ struct list_head *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);
-
+extern unsigned int ldlm_enqueue_min;
/* ldlm_resource.c */
+extern struct kmem_cache *ldlm_resource_slab;
+extern struct kmem_cache *ldlm_lock_slab;
+
int ldlm_resource_putref_locked(struct ldlm_resource *res);
void ldlm_resource_insert_lock_after(struct ldlm_lock *original,
struct ldlm_lock *new);
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
+/* ldlm_lock.c */
struct ldlm_cb_set_arg {
- struct ptlrpc_request_set *set;
- cfs_atomic_t restart;
- __u32 type; /* LDLM_BL_CALLBACK or LDLM_CP_CALLBACK */
+ struct ptlrpc_request_set *set;
+ int type; /* LDLM_{CP,BL,GL}_CALLBACK */
+ atomic_t restart;
+ struct list_head *list;
+ union ldlm_gl_desc *gl_desc; /* glimpse AST descriptor */
};
typedef enum {
- LDLM_WORK_BL_AST,
- LDLM_WORK_CP_AST,
- LDLM_WORK_REVOKE_AST
+ 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, cfs_list_t *work_list);
+void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list);
+int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
+ enum req_location loc, void *data, int size);
struct ldlm_lock *
ldlm_lock_create(struct ldlm_namespace *ns, const struct ldlm_res_id *,
ldlm_type_t type, ldlm_mode_t,
const struct ldlm_callback_suite *cbs,
- void *data, __u32 lvb_len);
+ void *data, __u32 lvb_len, enum lvb_type lvb_type);
ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *, struct ldlm_lock **,
- void *cookie, int *flags);
+ void *cookie, __u64 *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,
- 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);
+ struct list_head *work_list);
+#ifdef HAVE_SERVER_SUPPORT
+int ldlm_reprocess_queue(struct ldlm_resource *res, struct list_head *queue,
+ struct list_head *work_list);
+#endif
+int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *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_check(struct ldlm_lock *lock,
+ cfs_time_t last_use);
+#define ldlm_lock_remove_from_lru(lock) ldlm_lock_remove_from_lru_check(lock, 0)
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_add_to_lru(struct ldlm_lock *lock);
/* 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,
- cfs_list_t *cancels, int count, int mode);
+int ldlm_bl_to_thread_list(struct ldlm_namespace *ns,
+ struct ldlm_lock_desc *ld,
+ struct list_head *cancels, int count,
+ ldlm_cancel_flags_t cancel_flags);
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, cfs_list_t *work_list);
+int ldlm_process_plain_lock(struct ldlm_lock *lock, __u64 *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, __u64 *flags,
+ int first_enq, ldlm_error_t *err,
+ struct list_head *work_list);
+#endif
/* ldlm_extent.c */
-int ldlm_process_extent_lock(struct ldlm_lock *lock, int *flags, int first_enq,
- ldlm_error_t *err, cfs_list_t *work_list);
+#ifdef HAVE_SERVER_SUPPORT
+int ldlm_process_extent_lock(struct ldlm_lock *lock, __u64 *flags,
+ int first_enq, ldlm_error_t *err,
+ struct list_head *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, 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);
+int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
+ int first_enq, ldlm_error_t *err,
+ struct list_head *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);
void l_check_no_ns_lock(struct ldlm_namespace *ns);
-extern cfs_proc_dir_entry_t *ldlm_svc_proc_dir;
-extern cfs_proc_dir_entry_t *ldlm_type_proc_dir;
+extern struct proc_dir_entry *ldlm_svc_proc_dir;
struct ldlm_state {
struct ptlrpc_service *ldlm_cb_service;
};
/* interval tree, for LDLM_EXTENT. */
-extern cfs_mem_cache_t *ldlm_interval_slab; /* slab cache for ldlm_interval */
+extern struct kmem_cache *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);
ldlm_interval_extent(struct ldlm_interval *node)
{
struct ldlm_lock *lock;
- LASSERT(!cfs_list_empty(&node->li_group));
+ LASSERT(!list_empty(&node->li_group));
- lock = cfs_list_entry(node->li_group.next, struct ldlm_lock,
+ lock = list_entry(node->li_group.next, struct ldlm_lock,
l_sl_policy);
return &lock->l_policy_data.l_extent;
}
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;
-#define LDLM_POOL_PROC_READER(var, type) \
- static int lprocfs_rd_##var(char *page, char **start, off_t off, \
- int count, int *eof, void *data) \
- { \
- struct ldlm_pool *pl = data; \
- type tmp; \
- \
- cfs_spin_lock(&pl->pl_lock); \
- tmp = pl->pl_##var; \
- cfs_spin_unlock(&pl->pl_lock); \
- \
- return lprocfs_rd_uint(page, start, off, count, eof, &tmp); \
- } \
- struct __##var##__dummy_read {;} /* semicolon catcher */
-
-#define LDLM_POOL_PROC_WRITER(var, type) \
- int lprocfs_wr_##var(struct file *file, const char *buffer, \
- unsigned long count, void *data) \
- { \
- struct ldlm_pool *pl = data; \
- type tmp; \
- int rc; \
- \
- rc = lprocfs_wr_uint(file, buffer, count, &tmp); \
- if (rc) { \
- CERROR("Can't parse user input, rc = %d\n", rc); \
- return rc; \
- } \
- \
- cfs_spin_lock(&pl->pl_lock); \
- pl->pl_##var = tmp; \
- cfs_spin_unlock(&pl->pl_lock); \
- \
- return rc; \
- } \
- struct __##var##__dummy_write {;} /* semicolon catcher */
+#define LDLM_POOL_PROC_READER_SEQ_SHOW(var, type) \
+ static int lprocfs_##var##_seq_show(struct seq_file *m, void *v)\
+ { \
+ struct ldlm_pool *pl = m->private; \
+ type tmp; \
+ \
+ spin_lock(&pl->pl_lock); \
+ tmp = pl->pl_##var; \
+ spin_unlock(&pl->pl_lock); \
+ \
+ return lprocfs_uint_seq_show(m, &tmp); \
+ } \
+ struct __##var##__dummy_read {;} /* semicolon catcher */
+
+#define LDLM_POOL_PROC_WRITER(var, type) \
+ static int lprocfs_wr_##var(struct file *file, \
+ const char __user *buffer, \
+ unsigned long count, void *data) \
+ { \
+ struct ldlm_pool *pl = data; \
+ type tmp; \
+ int rc; \
+ \
+ rc = lprocfs_wr_uint(file, buffer, count, &tmp); \
+ if (rc < 0) { \
+ CERROR("Can't parse user input, rc = %d\n", rc);\
+ return rc; \
+ } \
+ \
+ spin_lock(&pl->pl_lock); \
+ pl->pl_##var = tmp; \
+ spin_unlock(&pl->pl_lock); \
+ \
+ return rc; \
+ } \
+ struct __##var##__dummy_write {;} /* semicolon catcher */
+
+static inline void
+ldlm_add_var(struct lprocfs_vars *vars, struct proc_dir_entry *proc_dir,
+ const char *name, void *data, const struct file_operations *ops)
+{
+ snprintf((char *)vars->name, MAX_STRING_SIZE, "%s", name);
+ vars->data = data;
+ vars->fops = ops;
+ lprocfs_add_vars(proc_dir, vars, NULL);
+}
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))
+ if ((lock->l_req_mode == lock->l_granted_mode) &&
+ !ldlm_is_cp_reqd(lock))
+ ret = 1;
+ else if (ldlm_is_failed(lock) || ldlm_is_cancel(lock))
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_wire_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