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authorJens Axboe <axboe@kernel.dk>2018-08-06 04:32:09 +0300
committerJens Axboe <axboe@kernel.dk>2018-08-06 04:32:09 +0300
commit05b9ba4b550ff67d7362608828405f9e389e8988 (patch)
tree12b0f4e41c1491fe5087480d9c47e61aff8a1d33 /kernel/sched
parent704f83928c8e7da6e06144569efb15dec73278e8 (diff)
parentd72e90f33aa4709ebecc5005562f52335e106a60 (diff)
downloadlinux-05b9ba4b550ff67d7362608828405f9e389e8988.tar.xz
Merge tag 'v4.18-rc6' into for-4.19/block2
Pull in 4.18-rc6 to get the NVMe core AEN change to avoid a merge conflict down the line. Signed-of-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/deadline.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index fbfc3f1d368a..10c7b51c0d1f 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -2290,8 +2290,17 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p)
if (task_on_rq_queued(p) && p->dl.dl_runtime)
task_non_contending(p);
- if (!task_on_rq_queued(p))
+ if (!task_on_rq_queued(p)) {
+ /*
+ * Inactive timer is armed. However, p is leaving DEADLINE and
+ * might migrate away from this rq while continuing to run on
+ * some other class. We need to remove its contribution from
+ * this rq running_bw now, or sub_rq_bw (below) will complain.
+ */
+ if (p->dl.dl_non_contending)
+ sub_running_bw(&p->dl, &rq->dl);
sub_rq_bw(&p->dl, &rq->dl);
+ }
/*
* We cannot use inactive_task_timer() to invoke sub_running_bw()