From: Yu Kuai <yukuai3@huawei.com>

Changes in v2:
 - Instead add ioc_pd_offline(), and move operations for iocg from
 ioc_pd_free() to ioc_pd_offline(), use refcounting to fix the problem.

Yu Kuai (2):
  blk-iocost: add refcounting for iocg
  blk-iocost: add refcounting for ioc

 block/blk-iocost.c | 86 ++++++++++++++++++++++++++++++++--------------
 1 file changed, 61 insertions(+), 25 deletions(-)

-- 
2.31.1