iocost: Fix check condition of iocg abs_vdebt

[ 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>

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 8ac4aad66ebc3783e009c51282eb52aa3edaa15d..86ba6fd254e1de0d8cf71c43c503f2d137c7011e 100644 (file)
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -1370,7 +1370,7 @@ 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;