LU-1842 ldlm: support for sending GL ASTs to multiple locks

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

diff --git a/lustre/ldlm/ldlm_internal.h b/lustre/ldlm/ldlm_internal.h
index f6bb70e..65c1331 100644 (file)
--- a/lustre/ldlm/ldlm_internal.h
+++ b/lustre/ldlm/ldlm_internal.h
@@ -1,6 +1,4 @@
-/* -*- 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.
@@ -29,8 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011 Whamcloud, Inc.
- *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,17 +38,11 @@
 
 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_mutex_t ldlm_srv_namespace_lock;
 extern cfs_list_t ldlm_srv_namespace_list;
-extern cfs_semaphore_t ldlm_cli_namespace_lock;
+extern cfs_mutex_t ldlm_cli_namespace_lock;
 extern cfs_list_t ldlm_cli_namespace_list;
 
-static inline int ldlm_res_eq(const struct ldlm_res_id *res0,
-                       const struct ldlm_res_id *res1)
-{
-        return !memcmp(res0, res1, sizeof(*res0));
-}
-
 static inline cfs_atomic_t *ldlm_namespace_nr(ldlm_side_t client)
 {
         return client == LDLM_NAMESPACE_SERVER ?
@@ -64,7 +55,7 @@ static inline cfs_list_t *ldlm_namespace_list(ldlm_side_t client)
                 &ldlm_srv_namespace_list : &ldlm_cli_namespace_list;
 }
 
-static inline cfs_semaphore_t *ldlm_namespace_lock(ldlm_side_t client)
+static inline cfs_mutex_t *ldlm_namespace_lock(ldlm_side_t client)
 {
         return client == LDLM_NAMESPACE_SERVER ?
                 &ldlm_srv_namespace_lock : &ldlm_cli_namespace_lock;
@@ -104,17 +95,17 @@ void ldlm_namespace_free_post(struct ldlm_namespace *ns);
 /* ldlm_lock.c */
 
 struct ldlm_cb_set_arg {
-        int          type;      /* LDLM_BL_CALLBACK or LDLM_CP_CALLBACK */
-        unsigned int threshold; /* threshold to wake up the waiting proc */
-        cfs_atomic_t rpcs;      /* # of inflight rpcs in set */
-        cfs_atomic_t restart;
-        cfs_waitq_t  waitq;
+       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_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);
@@ -131,10 +122,13 @@ 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);
+#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);
@@ -153,24 +147,30 @@ int ldlm_bl_to_thread_list(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
 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);
 
+/* 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, 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, 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_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);
@@ -285,7 +285,10 @@ 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,
+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);