From: Tejun Heo <tj@kernel.org>
To: void@manifault.com
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
schatzberg.dan@gmail.com
Subject: [PATCHSET sched_ext/for-6.11] sched_ext: Fix scx_bpf_reenqueue_local()
Date: Tue, 9 Jul 2024 11:09:41 -1000 [thread overview]
Message-ID: <20240709211001.1198145-1-tj@kernel.org> (raw)
Fix scx_bpf_reenqueue_local()'s misbehaviors in two cases:
- when SCX_ENQ_HEAD is used to dispatch a re-enqueued task back to the same
local DSQ.
- when the CPU is being preempted by stop_task for task migration.
This patchset contains the following two patches:
0001-sched_ext-Reimplement-scx_bpf_reenqueue_local.patch
0002-sched_ext-Make-scx_bpf_reenqueue_local-skip-tasks-th.patch
and is also available in the following git branch:
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git scx-fix-reenqueue_local
diffstat follows. Thanks.
kernel/sched/ext.c | 40 +++++++++++++++++++++++++++-------------
1 file changed, 27 insertions(+), 13 deletions(-)
--
tejun
next reply other threads:[~2024-07-09 21:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-09 21:09 Tejun Heo [this message]
2024-07-09 21:09 ` [PATCH 1/2] sched_ext: Reimplement scx_bpf_reenqueue_local() Tejun Heo
2024-07-09 21:18 ` David Vernet
2024-07-09 21:09 ` [PATCH 2/2] sched_ext: Make scx_bpf_reenqueue_local() skip tasks that are being migrated Tejun Heo
2024-07-09 22:16 ` David Vernet
2024-07-09 22:31 ` [PATCHSET sched_ext/for-6.11] sched_ext: Fix scx_bpf_reenqueue_local() Tejun Heo
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