Branch HEAD

[fs/lustre-release.git] / lustre / ldlm / ldlm_internal.h

diff --git a/lustre/ldlm/ldlm_internal.h b/lustre/ldlm/ldlm_internal.h
index b8bfdac..89b63c8 100644 (file)
--- a/lustre/ldlm/ldlm_internal.h
+++ b/lustre/ldlm/ldlm_internal.h
@@ -1 +1,117 @@
-int ldlm_cancel_lru(struct ldlm_namespace *ns);
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * 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,
+} ldlm_sync_t;
+
+/* Cancel lru flag, it indicates we cancel aged locks. */
+#define LDLM_CANCEL_AGED 0x00000001
+
+int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr, ldlm_sync_t sync);
+int ldlm_cancel_lru_local(struct ldlm_namespace *ns, struct list_head *cancels,
+                          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);
+
+/* ldlm_lock.c */
+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 *,
+                 ldlm_type_t type, ldlm_mode_t, ldlm_blocking_callback,
+                 ldlm_completion_callback, ldlm_glimpse_callback, 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_decref_internal(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_bl_ast_work(struct list_head *rpc_list);
+int ldlm_run_cp_ast_work(struct list_head *rpc_list);
+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 */
+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);
+
+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_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_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);
+
+/* 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;
+
+struct ldlm_state {
+        struct ptlrpc_service *ldlm_cb_service;
+        struct ptlrpc_service *ldlm_cancel_service;
+        struct ptlrpc_client *ldlm_client;
+        struct ptlrpc_connection *ldlm_server_conn;
+        struct ldlm_bl_pool *ldlm_bl_pool;
+};
+
+int ldlm_init(void);
+void ldlm_exit(void);
+