Btrfs: put ENOSPC debugging under a mount option

[mv-sheeva.git] / fs / btrfs / super.c

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 0209b5fc772c9dffe4caf18a5e2c120a5ed7d0a6..db0a827252bd0809917324a702ee6f4d79c6c892 100644 (file)
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -155,7 +155,8 @@ enum {
        Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, Opt_compress,
        Opt_compress_type, Opt_compress_force, Opt_compress_force_type,
        Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard,
-       Opt_space_cache, Opt_clear_cache, Opt_user_subvol_rm_allowed, Opt_err,
+       Opt_space_cache, Opt_clear_cache, Opt_user_subvol_rm_allowed,
+       Opt_enospc_debug, Opt_err,
 };
 
 static match_table_t tokens = {
@@ -184,6 +185,7 @@ static match_table_t tokens = {
        {Opt_space_cache, "space_cache"},
        {Opt_clear_cache, "clear_cache"},
        {Opt_user_subvol_rm_allowed, "user_subvol_rm_allowed"},
+       {Opt_enospc_debug, "enospc_debug"},
        {Opt_err, NULL},
 };
 
@@ -358,6 +360,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
                case Opt_user_subvol_rm_allowed:
                        btrfs_set_opt(info->mount_opt, USER_SUBVOL_RM_ALLOWED);
                        break;
+               case Opt_enospc_debug:
+                       btrfs_set_opt(info->mount_opt, ENOSPC_DEBUG);
+                       break;
                case Opt_err:
                        printk(KERN_INFO "btrfs: unrecognized mount option "
                               "'%s'\n", p);