diff options
| author | Connor O'Brien <connoro@google.com> | 2024-10-10 01:53:37 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-10-14 12:52:41 +0200 |
| commit | 2b05a0b4c08ffd6dedfbd27af8708742cde39b95 (patch) | |
| tree | 3df836af0cce5aec91497cf1b24457cf62bce2aa /kernel/sched/deadline.c | |
| parent | locking/mutex: Expose __mutex_owner() (diff) | |
| download | linux-2b05a0b4c08ffd6dedfbd27af8708742cde39b95.tar.xz linux-2b05a0b4c08ffd6dedfbd27af8708742cde39b95.zip | |
sched: Add move_queued_task_locked helper
Switch logic that deactivates, sets the task cpu,
and reactivates a task on a different rq to use a
helper that will be later extended to push entire
blocked task chains.
This patch was broken out from a larger chain migration
patch originally by Connor O'Brien.
[jstultz: split out from larger chain migration patch]
Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Metin Kaya <metin.kaya@arm.com>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Qais Yousef <qyousef@layalina.io>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: Metin Kaya <metin.kaya@arm.com>
Link: https://lore.kernel.org/r/20241009235352.1614323-5-jstultz@google.com
Diffstat (limited to 'kernel/sched/deadline.c')
| -rw-r--r-- | kernel/sched/deadline.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index be1b917dc8ce..4acf5e3a5005 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -2751,9 +2751,7 @@ retry: goto retry; } - deactivate_task(rq, next_task, 0); - set_task_cpu(next_task, later_rq->cpu); - activate_task(later_rq, next_task, 0); + move_queued_task_locked(rq, later_rq, next_task); ret = 1; resched_curr(later_rq); @@ -2839,9 +2837,7 @@ static void pull_dl_task(struct rq *this_rq) if (is_migration_disabled(p)) { push_task = get_push_task(src_rq); } else { - deactivate_task(src_rq, p, 0); - set_task_cpu(p, this_cpu); - activate_task(this_rq, p, 0); + move_queued_task_locked(src_rq, this_rq, p); dmin = p->dl.deadline; resched = true; } |