Move grabbing s_umount to callers of grab_super()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-03-23 11:11:05 -04:00
parent 7ed1ee6118
commit d3f2147307
2 changed files with 3 additions and 2 deletions
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -245,6 +245,7 @@ struct super_block *freeze_bdev(struct block_device *bdev)
 	sb = get_active_super(bdev);
 	if (!sb)
 		goto out;
+	down_write(&sb->s_umount);
 	if (sb->s_flags & MS_RDONLY) {
 		sb->s_frozen = SB_FREEZE_TRANS;
 		up_write(&sb->s_umount);