Btrfs: remove OPT_acl parse when acl disabled

Even CONFIG_BTRFS_FS_POSIX_ACL is not defined, the acl still could
been enabled using a mount option, and now fs/btrfs/acl.o is not
built, so the mount options will appear to be supported but will
be silently ignored.

Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index d80a2786f563..77fcb5706700 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -580,8 +580,15 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
                         }
                         break;
                 case Opt_acl:
+#ifdef CONFIG_BTRFS_FS_POSIX_ACL
                         root->fs_info->sb->s_flags |= MS_POSIXACL;
                         break;
+#else
+                        btrfs_err(root->fs_info,
+                                "support for ACL not compiled in!");
+                        ret = -EINVAL;
+                        goto out;
+#endif
                 case Opt_noacl:
                         root->fs_info->sb->s_flags &= ~MS_POSIXACL;
                         break;