1 files changed, 16 insertions, 22 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index d04db817be5c..9dbf42395153 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1305,13 +1305,6 @@ error_fs_info:
         return ERR_PTR(error);
 }
 
-static void btrfs_set_max_workers(struct btrfs_workers *workers, int new_limit)
-{
-        spin_lock_irq(&workers->lock);
-        workers->max_workers = new_limit;
-        spin_unlock_irq(&workers->lock);
-}
-
 static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
                                      int new_pool_size, int old_pool_size)
 {
@@ -1323,21 +1316,20 @@ static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
         btrfs_info(fs_info, "resize thread pool %d -> %d",
                old_pool_size, new_pool_size);
 
-        btrfs_set_max_workers(&fs_info->generic_worker, new_pool_size);
-        btrfs_set_max_workers(&fs_info->workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->delalloc_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->submit_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->caching_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->fixup_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->endio_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->endio_meta_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->endio_meta_write_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->endio_write_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->endio_freespace_worker, new_pool_size);
-        btrfs_set_max_workers(&fs_info->delayed_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->readahead_workers, new_pool_size);
-        btrfs_set_max_workers(&fs_info->scrub_wr_completion_workers,
-                              new_pool_size);
+        btrfs_workqueue_set_max(fs_info->workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->delalloc_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->submit_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->caching_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->endio_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->endio_meta_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->endio_meta_write_workers,
+                                new_pool_size);
+        btrfs_workqueue_set_max(fs_info->endio_write_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->endio_freespace_worker, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->delayed_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->readahead_workers, new_pool_size);
+        btrfs_workqueue_set_max(fs_info->scrub_wr_completion_workers,
+                                new_pool_size);
 }
 
 static inline void btrfs_remount_prepare(struct btrfs_fs_info *fs_info)
@@ -1388,6 +1380,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
         unsigned int old_metadata_ratio = fs_info->metadata_ratio;
         int ret;
 
+        sync_filesystem(sb);
         btrfs_remount_prepare(fs_info);
 
         ret = btrfs_parse_options(root, data);
@@ -1479,6 +1472,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
                 sb->s_flags &= ~MS_RDONLY;
         }
 out:
+        wake_up_process(fs_info->transaction_kthread);
         btrfs_remount_cleanup(fs_info, old_opts);
         return 0;