1 files changed, 12 insertions, 1 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f3274befd46a..196d0e280b19 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -67,7 +67,7 @@ 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_err,
+        Opt_ssd, Opt_thread_pool, Opt_err,
 };
 
 static match_table_t tokens = {
@@ -80,6 +80,7 @@ static match_table_t tokens = {
         {Opt_max_extent, "max_extent=%s"},
         {Opt_max_inline, "max_inline=%s"},
         {Opt_alloc_start, "alloc_start=%s"},
+        {Opt_thread_pool, "thread_pool=%d"},
         {Opt_ssd, "ssd"},
         {Opt_err, NULL}
 };
@@ -118,6 +119,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
         struct btrfs_fs_info *info = root->fs_info;
         substring_t args[MAX_OPT_ARGS];
         char *p, *num;
+        int intarg;
 
         if (!options)
                 return 0;
@@ -166,6 +168,15 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
                         printk(KERN_INFO "btrfs: turning off barriers\n");
                         btrfs_set_opt(info->mount_opt, NOBARRIER);
                         break;
+                case Opt_thread_pool:
+                        intarg = 0;
+                        match_int(&args[0], &intarg);
+                        if (intarg) {
+                                info->thread_pool_size = intarg;
+                                printk(KERN_INFO "btrfs: thread pool %d\n",
+                                       info->thread_pool_size);
+                        }
+                        break;
                 case Opt_max_extent:
                         num = match_strdup(&args[0]);
                         if (num) {