[PATCH] ocfs2: Semaphore to mutex conversion.

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: NArjan van de Ven <arjan@infradead.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/journal.c

@@ -1072,10 +1072,10 @@ static int __ocfs2_recovery_thread(void *arg)
 					NULL);
 
 bail:
-	down(&osb->recovery_lock);
+	mutex_lock(&osb->recovery_lock);
 	if (!status &&
 	    !ocfs2_node_map_is_empty(osb, &osb->recovery_map)) {
-		up(&osb->recovery_lock);
+		mutex_unlock(&osb->recovery_lock);
 		goto restart;
 	}
 
@@ -1083,7 +1083,7 @@ static int __ocfs2_recovery_thread(void *arg)
 	mb(); /* sync with ocfs2_recovery_thread_running */
 	wake_up(&osb->recovery_event);
 
-	up(&osb->recovery_lock);
+	mutex_unlock(&osb->recovery_lock);
 
 	mlog_exit(status);
 	/* no one is callint kthread_stop() for us so the kthread() api
@@ -1098,7 +1098,7 @@ void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num)
 	mlog_entry("(node_num=%d, osb->node_num = %d)\n",
 		   node_num, osb->node_num);
 
-	down(&osb->recovery_lock);
+	mutex_lock(&osb->recovery_lock);
 	if (osb->disable_recovery)
 		goto out;
 
@@ -1120,7 +1120,7 @@ void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num)
 	}
 
 out:
-	up(&osb->recovery_lock);
+	mutex_unlock(&osb->recovery_lock);
 	wake_up(&osb->recovery_event);
 
 	mlog_exit_void();

fs/ocfs2/ocfs2.h

@@ -33,6 +33,7 @@
 #include <linux/rbtree.h>
 #include <linux/workqueue.h>
 #include <linux/kref.h>
+#include <linux/mutex.h>
 
 #include "cluster/nodemanager.h"
 #include "cluster/heartbeat.h"
@@ -233,7 +234,7 @@ struct ocfs2_super
 	struct proc_dir_entry *proc_sub_dir; /* points to /proc/fs/ocfs2/<maj_min> */
 
 	atomic_t vol_state;
-	struct semaphore recovery_lock;
+	struct mutex recovery_lock;
 	struct task_struct *recovery_thread_task;
 	int disable_recovery;
 	wait_queue_head_t checkpoint_event;

fs/ocfs2/super.c

@@ -1137,9 +1137,9 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
 
 	/* disable any new recovery threads and wait for any currently
 	 * running ones to exit. Do this before setting the vol_state. */
-	down(&osb->recovery_lock);
+	mutex_lock(&osb->recovery_lock);
 	osb->disable_recovery = 1;
-	up(&osb->recovery_lock);
+	mutex_unlock(&osb->recovery_lock);
 	wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb));
 
 	/* At this point, we know that no more recovery threads can be
@@ -1283,7 +1283,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u",
 		 MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev));
 
-	init_MUTEX(&osb->recovery_lock);
+	mutex_init(&osb->recovery_lock);
 
 	osb->disable_recovery = 0;
 	osb->recovery_thread_task = NULL;