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[v6,0/2] cancel all throttled bios in del_gendisk()

Message ID 20220110134758.2233758-1-yukuai3@huawei.com (mailing list archive)
Headers show
Series cancel all throttled bios in del_gendisk() | expand

Message

Yu Kuai Jan. 10, 2022, 1:47 p.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.

Changes in v2:
 - move WARN_ON_ONCE() from throtl_rb_first() to it's caller
 - merge some patches into one.

Changes in v3:
 - some code optimization in patch 1
 - hold queue lock to cancel bios in patch 2

Changes in v4:
 - delete rcu_read_lock() and rcu_read_unlock() in patch 2

Changes in v5:
 - add comment about rcu lock

Changes in v6:
 - revert to include rcu lock with some comments.

Jagan Teki (1):
  ARM: dts: stm32: Enable LVDS panel on i.Core STM32MP1 EDIMM2.2

Yu Kuai (1):
  blk-throtl: move WARN_ON_ONCE() from throtl_rb_first() to it's caller

Yu Kuai (2):
  blk-throtl: move WARN_ON_ONCE() from throtl_rb_first() to it's caller
  block: cancel all throttled bios in del_gendisk()

 block/blk-throttle.c | 82 ++++++++++++++++++++++++++++++++++++++++++--
 block/blk-throttle.h |  2 ++
 block/genhd.c        |  2 ++
 3 files changed, 83 insertions(+), 3 deletions(-)