Btrfs: reserve metadata space in btrfs_ioctl_setflags()

Check and reserve space for btrfs_update_inode().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
(cherry picked from commit 4da6f1a332f6c16b6594c7892f13c31459b9b1c8)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a0fc2e0ef3c50fb08b38588ca3e292c2bdbadf63..efbffef01078c4c728bf9cdf32b70de0e902bb3d 100644 (file)
--- 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;