Btrfs: Add ACL support

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 4cb6aac5122e..a6a418b6894b 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -68,7 +68,7 @@ static void btrfs_put_super (struct super_block * sb)
 enum {
         Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow,
         Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier,
-        Opt_ssd, Opt_thread_pool, Opt_err,
+        Opt_ssd, Opt_thread_pool, Opt_noacl,  Opt_err,
 };
 
 static match_table_t tokens = {
@@ -83,7 +83,8 @@ static match_table_t tokens = {
         {Opt_alloc_start, "alloc_start=%s"},
         {Opt_thread_pool, "thread_pool=%d"},
         {Opt_ssd, "ssd"},
-        {Opt_err, NULL}
+        {Opt_noacl, "noacl"},
+        {Opt_err, NULL},
 };
 
 u64 btrfs_parse_size(char *str)
@@ -215,6 +216,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
                                         info->alloc_start);
                         }
                         break;
+                case Opt_noacl:
+                        root->fs_info->sb->s_flags &= ~MS_POSIXACL;
+                        break;
                 default:
                         break;
                 }
@@ -301,6 +305,7 @@ static int btrfs_fill_super(struct super_block * sb,
         sb->s_op = &btrfs_super_ops;
         sb->s_xattr = btrfs_xattr_handlers;
         sb->s_time_gran = 1;
+        sb->s_flags |= MS_POSIXACL;
 
         tree_root = open_ctree(sb, fs_devices, (char *)data);