* vim:expandtab:shiftwidth=8:tabstop=8:
*/
+#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;
+
+static inline atomic_t *ldlm_namespace_nr(ldlm_side_t client)
+{
+ 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)
+{
+ return client == LDLM_NAMESPACE_SERVER ?
+ &ldlm_srv_namespace_list : &ldlm_cli_namespace_list;
+}
+
+static inline struct semaphore *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_t;
/* Cancel lru flag, it indicates we cancel aged locks. */
-#define LDLM_CANCEL_AGED 0x00000001
+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. */
+};
-int ldlm_cancel_lru(struct ldlm_namespace *ns, 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 flags);
+ int count, int max, int cancel_flags, int flags);
+int ldlm_cancel_lru_estimate(struct ldlm_namespace *ns, int count, int max,
+ int flags);
/* 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);
/* 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 */
+};
+
+typedef enum {
+ LDLM_WORK_BL_AST,
+ LDLM_WORK_CP_AST,
+ LDLM_WORK_REVOKE_AST
+} ldlm_desc_ast_t;
+
void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list);
struct ldlm_lock *
ldlm_lock_create(struct ldlm_namespace *ns, const struct ldlm_res_id *,
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_bl_ast_work(struct list_head *rpc_list);
-int ldlm_run_cp_ast_work(struct list_head *rpc_list);
+int ldlm_run_ast_work(struct list_head *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);
+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);
/* ldlm_lockd.c */
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;
struct ldlm_state {
struct ptlrpc_service *ldlm_cb_service;
int ldlm_init(void);
void ldlm_exit(void);
+enum ldlm_policy_res {
+ LDLM_POLICY_CANCEL_LOCK,
+ LDLM_POLICY_KEEP_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; \
+ \
+ spin_lock(&pl->pl_lock); \
+ tmp = pl->pl_##var; \
+ 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; \
+ } \
+ \
+ spin_lock(&pl->pl_lock); \
+ pl->pl_##var = tmp; \
+ spin_unlock(&pl->pl_lock); \
+ \
+ return rc; \
+ } \
+ struct __##var##__dummy_write {;} /* semicolon catcher */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff