btrfs: Replace fs_info->qgroup_rescan_worker workqueue with btrfs_workqueue.

Replace the fs_info->qgroup_rescan_worker with the newly created
btrfs_workqueue.

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

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index c07b67f..7b50def 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1648,9 +1648,9 @@ struct btrfs_fs_info {
        /* qgroup rescan items */
        struct mutex qgroup_rescan_lock; /* protects the progress item */
        struct btrfs_key qgroup_rescan_progress;
-       struct btrfs_workers qgroup_rescan_workers;
+       struct btrfs_workqueue_struct *qgroup_rescan_workers;
        struct completion qgroup_rescan_completion;
-       struct btrfs_work qgroup_rescan_work;
+       struct btrfs_work_struct qgroup_rescan_work;
 
        /* filesystem state */
        unsigned long fs_state;

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f5da1fd..9aaf9c3 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2010,7 +2010,7 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
        btrfs_destroy_workqueue(fs_info->caching_workers);
        btrfs_destroy_workqueue(fs_info->readahead_workers);
        btrfs_destroy_workqueue(fs_info->flush_workers);
-       btrfs_stop_workers(&fs_info->qgroup_rescan_workers);
+       btrfs_destroy_workqueue(fs_info->qgroup_rescan_workers);
 }
 
 static void free_root_extent_buffers(struct btrfs_root *root)
@@ -2523,15 +2523,14 @@ int open_ctree(struct super_block *sb,
                btrfs_alloc_workqueue("delayed-meta", flags, max_active, 0);
        fs_info->readahead_workers =
                btrfs_alloc_workqueue("readahead", flags, max_active, 2);
-       btrfs_init_workers(&fs_info->qgroup_rescan_workers, "qgroup-rescan", 1,
-                          &fs_info->generic_worker);
+       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);
-       ret |= btrfs_start_workers(&fs_info->qgroup_rescan_workers);
        if (ret) {
                err = -ENOMEM;
                goto fail_sb_buffer;
@@ -2543,7 +2542,8 @@ int open_ctree(struct super_block *sb,
              fs_info->endio_write_workers && fs_info->endio_raid56_workers &&
              fs_info->endio_freespace_worker && fs_info->rmw_workers &&
              fs_info->caching_workers && fs_info->readahead_workers &&
-             fs_info->fixup_workers && fs_info->delayed_workers)) {
+             fs_info->fixup_workers && fs_info->delayed_workers &&
+             fs_info->qgroup_rescan_workers)) {
                err = -ENOMEM;
                goto fail_sb_buffer;
        }

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 472302a..38617cc 100644 (file)
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1509,8 +1509,8 @@ int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
                ret = qgroup_rescan_init(fs_info, 0, 1);
                if (!ret) {
                        qgroup_rescan_zero_tracking(fs_info);
-                       btrfs_queue_worker(&fs_info->qgroup_rescan_workers,
-                                          &fs_info->qgroup_rescan_work);
+                       btrfs_queue_work(fs_info->qgroup_rescan_workers,
+                                        &fs_info->qgroup_rescan_work);
                }
                ret = 0;
        }
@@ -1984,7 +1984,7 @@ out:
        return ret;
 }
 
-static void btrfs_qgroup_rescan_worker(struct btrfs_work *work)
+static void btrfs_qgroup_rescan_worker(struct btrfs_work_struct *work)
 {
        struct btrfs_fs_info *fs_info = container_of(work, struct btrfs_fs_info,
                                                     qgroup_rescan_work);
@@ -2095,7 +2095,8 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
 
        memset(&fs_info->qgroup_rescan_work, 0,
               sizeof(fs_info->qgroup_rescan_work));
-       fs_info->qgroup_rescan_work.func = btrfs_qgroup_rescan_worker;
+       btrfs_init_work(&fs_info->qgroup_rescan_work,
+                       btrfs_qgroup_rescan_worker, NULL, NULL);
 
        if (ret) {
 err:
@@ -2158,8 +2159,8 @@ btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info)
 
        qgroup_rescan_zero_tracking(fs_info);
 
-       btrfs_queue_worker(&fs_info->qgroup_rescan_workers,
-                          &fs_info->qgroup_rescan_work);
+       btrfs_queue_work(fs_info->qgroup_rescan_workers,
+                        &fs_info->qgroup_rescan_work);
 
        return 0;
 }
@@ -2190,6 +2191,6 @@ void
 btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info)
 {
        if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
-               btrfs_queue_worker(&fs_info->qgroup_rescan_workers,
-                                  &fs_info->qgroup_rescan_work);
+               btrfs_queue_work(fs_info->qgroup_rescan_workers,
+                                &fs_info->qgroup_rescan_work);
 }