The write-behind attribute is part of bitmap, since bitmap
can be added/removed dynamically with the following.
1. mdadm --grow /dev/md0 --bitmap=none
2. mdadm --grow /dev/md0 --bitmap=internal --write-behind
So we need to destroy wb_info_pool in md_bitmap_destroy,
and create the pool before load bitmap.
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
return;
md_bitmap_wait_behind_writes(mddev);
+ mempool_destroy(mddev->wb_info_pool);
+ mddev->wb_info_pool = NULL;
mutex_lock(&mddev->bitmap_info.mutex);
spin_lock(&mddev->lock);
sector_t start = 0;
sector_t sector = 0;
struct bitmap *bitmap = mddev->bitmap;
+ struct md_rdev *rdev;
if (!bitmap)
goto out;
+ rdev_for_each(rdev, mddev)
+ mddev_create_wb_pool(mddev, rdev, true);
+
if (mddev_is_clustered(mddev))
md_cluster_ops->load_bitmaps(mddev, mddev->bitmap_info.nodes);