Btrfs: Fix setting umask when POSIX ACLs are not enabled

We currently set sb->s_flags |= MS_POSIXACL unconditionally, which is
incorrect -- it tells the VFS that it shouldn't set umask because we
will, yet we don't set it ourselves if we aren't using POSIX ACLs, so
the umask ends up ignored.

Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 0242c8babae9..e0a64328080c 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -344,7 +344,9 @@ static int btrfs_fill_super(struct super_block *sb,
         sb->s_export_op = &btrfs_export_ops;
         sb->s_xattr = btrfs_xattr_handlers;
         sb->s_time_gran = 1;
+#ifdef CONFIG_BTRFS_POSIX_ACL
         sb->s_flags |= MS_POSIXACL;
+#endif
 
         tree_root = open_ctree(sb, fs_devices, (char *)data);