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iocost: Fix check condition of iocg abs_vdebt

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[ Upstream commit d9012a59db54442d5b2fcfdfcded35cf566397d3 ]

We shouldn't skip iocg when its abs_vdebt is not zero.

Fixes: 0b80f9866e6b ("iocost: protect iocg->abs_vdebt with iocg->waitq.lock")
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chengming Zhou 2020-07-30 17:03:21 +08:00 • committed by Greg Kroah-Hartman
commit 2f53a4b54e
1 changed files with 1 additions and 1 deletions
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2
block/blk-iocost.c
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@ -1377,7 +1377,7 @@ static void ioc_timer_fn(struct timer_list *timer)
* should have woken up in the last period and expire idle iocgs.
*/
list_for_each_entry_safe(iocg, tiocg, &ioc->active_iocgs, active_list) {
if (!waitqueue_active(&iocg->waitq) && iocg->abs_vdebt &&
if (!waitqueue_active(&iocg->waitq) && !iocg->abs_vdebt &&
!iocg_is_idle(iocg))
continue;