Btrfs: rescan for qgroups

[linux-2.6-block.git] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 92c44ed78de11012b19b462b6e339f34a9f5c915..d96305e5cc93fe2f8befc9838f9a81317f70d366 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1976,6 +1976,7 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
        btrfs_stop_workers(&fs_info->caching_workers);
        btrfs_stop_workers(&fs_info->readahead_workers);
        btrfs_stop_workers(&fs_info->flush_workers);
+       btrfs_stop_workers(&fs_info->qgroup_rescan_workers);
 }
 
 /* helper to cleanup tree roots */
@@ -2267,6 +2268,7 @@ int open_ctree(struct super_block *sb,
        fs_info->qgroup_seq = 1;
        fs_info->quota_enabled = 0;
        fs_info->pending_quota_state = 0;
+       mutex_init(&fs_info->qgroup_rescan_lock);
 
        btrfs_init_free_cluster(&fs_info->meta_alloc_cluster);
        btrfs_init_free_cluster(&fs_info->data_alloc_cluster);
@@ -2476,6 +2478,8 @@ int open_ctree(struct super_block *sb,
        btrfs_init_workers(&fs_info->readahead_workers, "readahead",
                           fs_info->thread_pool_size,
                           &fs_info->generic_worker);
+       btrfs_init_workers(&fs_info->qgroup_rescan_workers, "qgroup-rescan", 1,
+                          &fs_info->generic_worker);
 
        /*
         * endios are largely parallel and should have a very
@@ -2510,6 +2514,7 @@ int open_ctree(struct super_block *sb,
        ret |= btrfs_start_workers(&fs_info->caching_workers);
        ret |= btrfs_start_workers(&fs_info->readahead_workers);
        ret |= btrfs_start_workers(&fs_info->flush_workers);
+       ret |= btrfs_start_workers(&fs_info->qgroup_rescan_workers);
        if (ret) {
                err = -ENOMEM;
                goto fail_sb_buffer;