Btrfs: notreelog mount option

[pandora-kernel.git] / fs / btrfs / super.c

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 2ceb40b..3baa2c1 100644 (file)
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -67,7 +67,8 @@ 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_noacl,  Opt_compress, Opt_err,
+       Opt_ssd, Opt_thread_pool, Opt_noacl,  Opt_compress, Opt_notreelog,
+       Opt_err,
 };
 
 static match_table_t tokens = {
@@ -84,6 +85,7 @@ static match_table_t tokens = {
        {Opt_compress, "compress"},
        {Opt_ssd, "ssd"},
        {Opt_noacl, "noacl"},
+       {Opt_notreelog, "notreelog"},
        {Opt_err, NULL},
 };
 
@@ -223,6 +225,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
                case Opt_noacl:
                        root->fs_info->sb->s_flags &= ~MS_POSIXACL;
                        break;
+               case Opt_notreelog:
+                       printk(KERN_INFO "btrfs: disabling tree log\n");
+                       btrfs_set_opt(info->mount_opt, NOTREELOG);
+                       break;
                default:
                        break;
                }
@@ -412,6 +418,8 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
                seq_puts(seq, ",compress");
        if (btrfs_test_opt(root, SSD))
                seq_puts(seq, ",ssd");
+       if (btrfs_test_opt(root, NOTREELOG))
+               seq_puts(seq, ",notreelog");
        if (!(root->fs_info->sb->s_flags & MS_POSIXACL))
                seq_puts(seq, ",noacl");
        return 0;