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yaml --- r: 263132 b: refs/heads/master c: 05eb0f2 h: refs/heads/master v: v3
git-mirror · Jul 31, 2011 · 650c552 · 650c552
1 parent 0cf3d80
commit 650c552
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d134b00b9acca3fb054d7c88a5f5d562ecbb42d1
+refs/heads/master: 05eb0f252b04aa94ace0794f73d56c6a02351d80
diff --git a/trunk/drivers/block/loop.c b/trunk/drivers/block/loop.c
@@ -743,10 +743,10 @@ static ssize_t loop_attr_backing_file_show(struct loop_device *lo, char *buf)
 	ssize_t ret;
 	char *p = NULL;
 
-	mutex_lock(&lo->lo_ctl_mutex);
+	spin_lock_irq(&lo->lo_lock);
 	if (lo->lo_backing_file)
 		p = d_path(&lo->lo_backing_file->f_path, buf, PAGE_SIZE - 1);
-	mutex_unlock(&lo->lo_ctl_mutex);
+	spin_unlock_irq(&lo->lo_lock);
 
 	if (IS_ERR_OR_NULL(p))
 		ret = PTR_ERR(p);
@@ -1000,7 +1000,9 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
 
 	kthread_stop(lo->lo_thread);
 
+	spin_lock_irq(&lo->lo_lock);
 	lo->lo_backing_file = NULL;
+	spin_unlock_irq(&lo->lo_lock);
 
 	loop_release_xfer(lo);
 	lo->transfer = NULL;