[0/4] cancel all throttled bios in del_gendisk()

Message

Yu Kuai Nov. 27, 2021, 10:10 a.m. UTC

If del_gendisk() is done when some io are still throttled, such io
will not be handled until the throttle is done, which is not
necessary.

This patch series handle such io in del_gendisk().

Yu Kuai (4):
  Revert "blk-throttle: remove tg_drain_bios"
  blk-throtl: don't warn in tg_drain_bios()
  blk-throtl: introduce blk_throtl_cancel_bios()
  block: cancel all throttled bios in del_gendisk()

 block/blk-throttle.c | 68 +++++++++++++++++++++++++++++++++++++++++---
 block/blk-throttle.h |  2 ++
 block/genhd.c        |  2 ++
 3 files changed, 68 insertions(+), 4 deletions(-)