Check and reserve space for btrfs_update_inode().

Signed-off-by: Li Zefan <l...@cn.fujitsu.com>
---
 fs/btrfs/ioctl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9619fb0..fe8a60c 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -254,7 +254,7 @@ static int btrfs_ioctl_setflags(struct file *file, void 
__user *arg)
                ip->flags &= ~(BTRFS_INODE_COMPRESS | BTRFS_INODE_NOCOMPRESS);
        }
 
-       trans = btrfs_join_transaction(root);
+       trans = btrfs_start_transaction(root, 1);
        if (IS_ERR(trans)) {
                ret = PTR_ERR(trans);
                goto out_drop;
-- 
1.7.3.1
--
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