[PATCH] freeze_bdev() cleanup
freeze_bdev() uses a fsync_super() without sync_blockdev(). This patch
makes __fsync_super() and shares it.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/buffer.c b/fs/buffer.c
index 6d77ce9..3b3ab52 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -160,12 +160,7 @@
}
EXPORT_SYMBOL(sync_blockdev);
-/*
- * Write out and wait upon all dirty data associated with this
- * superblock. Filesystem data as well as the underlying block
- * device. Takes the superblock lock.
- */
-int fsync_super(struct super_block *sb)
+static void __fsync_super(struct super_block *sb)
{
sync_inodes_sb(sb, 0);
DQUOT_SYNC(sb);
@@ -177,7 +172,16 @@
sb->s_op->sync_fs(sb, 1);
sync_blockdev(sb->s_bdev);
sync_inodes_sb(sb, 1);
+}
+/*
+ * Write out and wait upon all dirty data associated with this
+ * superblock. Filesystem data as well as the underlying block
+ * device. Takes the superblock lock.
+ */
+int fsync_super(struct super_block *sb)
+{
+ __fsync_super(sb);
return sync_blockdev(sb->s_bdev);
}
@@ -216,19 +220,7 @@
sb->s_frozen = SB_FREEZE_WRITE;
smp_wmb();
- sync_inodes_sb(sb, 0);
- DQUOT_SYNC(sb);
-
- lock_super(sb);
- if (sb->s_dirt && sb->s_op->write_super)
- sb->s_op->write_super(sb);
- unlock_super(sb);
-
- if (sb->s_op->sync_fs)
- sb->s_op->sync_fs(sb, 1);
-
- sync_blockdev(sb->s_bdev);
- sync_inodes_sb(sb, 1);
+ __fsync_super(sb);
sb->s_frozen = SB_FREEZE_TRANS;
smp_wmb();