btrfs: Cleanup the old btrfs_worker.

Since all the btrfs_worker is replaced with the newly created
btrfs_workqueue, the old codes can be easily remove.

Signed-off-by: Quwenruo <quwenruo@cn.fujitsu.com>
Tested-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9aaf9c309b54..c80d9507171c 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1994,7 +1994,6 @@ static noinline int next_root_backup(struct btrfs_fs_info *info,
 /* helper to cleanup workers */
 static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
 {
-        btrfs_stop_workers(&fs_info->generic_worker);
         btrfs_destroy_workqueue(fs_info->fixup_workers);
         btrfs_destroy_workqueue(fs_info->delalloc_workers);
         btrfs_destroy_workqueue(fs_info->workers);
@@ -2472,8 +2471,6 @@ int open_ctree(struct super_block *sb,
         }
 
         max_active = fs_info->thread_pool_size;
-        btrfs_init_workers(&fs_info->generic_worker,
-                           "genwork", 1, NULL);
 
         fs_info->workers =
                 btrfs_alloc_workqueue("worker", flags | WQ_HIGHPRI,
@@ -2526,15 +2523,6 @@ int open_ctree(struct super_block *sb,
         fs_info->qgroup_rescan_workers =
                 btrfs_alloc_workqueue("qgroup-rescan", flags, 1, 0);
 
-        /*
-         * btrfs_start_workers can really only fail because of ENOMEM so just
-         * return -ENOMEM if any of these fail.
-         */
-        ret = btrfs_start_workers(&fs_info->generic_worker);
-        if (ret) {
-                err = -ENOMEM;
-                goto fail_sb_buffer;
-        }
         if (!(fs_info->workers && fs_info->delalloc_workers &&
               fs_info->submit_workers && fs_info->flush_workers &&
               fs_info->endio_workers && fs_info->endio_meta_workers &&