LU-1347 build: remove the vim/emacs modelines

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

diff --git a/lustre/ldlm/ldlm_internal.h b/lustre/ldlm/ldlm_internal.h
index c6345cb..8f7cb5c 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.
@@ -28,6 +26,8 @@
 /*
  * 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/
@@ -38,9 +38,9 @@
 
 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 cfs_atomic_t *ldlm_namespace_nr(ldlm_side_t client)
@@ -55,7 +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;
@@ -94,16 +94,24 @@ void ldlm_namespace_free_prior(struct ldlm_namespace *ns,
 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;
+        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;
-        __u32 type; /* LDLM_BL_CALLBACK or LDLM_CP_CALLBACK */
+        cfs_atomic_t refcount;
+        cfs_waitq_t  waitq;
 };
 
+static inline void ldlm_csa_put(struct ldlm_cb_set_arg *arg)
+{
+        if (cfs_atomic_dec_and_test(&arg->refcount)) {
+                LASSERT(cfs_atomic_read(&arg->rpcs) == 0);
+
+                OBD_FREE_PTR(arg);
+        }
+}
+
 typedef enum {
         LDLM_WORK_BL_AST,
         LDLM_WORK_CP_AST,
@@ -124,9 +132,12 @@ 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);
-int ldlm_run_ast_work(cfs_list_t *rpc_list, ldlm_desc_ast_t ast_type);
+#endif
+int ldlm_run_ast_work(struct ldlm_namespace *ns, cfs_list_t *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);
@@ -145,13 +156,22 @@ 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);
 
@@ -159,11 +179,6 @@ void ldlm_extent_unlink_lock(struct ldlm_lock *lock);
 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);
-
 /* l_lock.c */
 void l_check_ns_lock(struct ldlm_namespace *ns);
 void l_check_no_ns_lock(struct ldlm_namespace *ns);
@@ -252,9 +267,35 @@ static inline int is_granted_or_cancelled(struct ldlm_lock *lock)
         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))
+            (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);