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Message-Id: <20220427080014.18483-1-jiahao.os@bytedance.com>
Date: Wed, 27 Apr 2022 16:00:12 +0800
From: Hao Jia <jiahao.os@...edance.com>
To: mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com,
vincent.guittot@...aro.org, dietmar.eggemann@....com,
rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
bristot@...hat.com
Cc: linux-kernel@...r.kernel.org, Hao Jia <jiahao.os@...edance.com>
Subject: [PATCH v3 0/2] sched/core: Avoid obvious double update_rq_clock warning
These two patches are about the kernel scheduler:
patch 1: fixed the issue that kernel may trigger WARN_DOUBLE_CLOCK warning.
patch 2: removed some no longer needed comments in the deadline scheduler
and cleaned up the code.
Thanks for suggestion from Dietmar Eggemann & Peter Zijlstra.
v2->v3:
- Modify some descriptions and errors in the commit information.
- Fixed a bug that might trigger the WARN_DOUBLE_CLOCK warning in
migrate_task_rq_dl().
- Add Reviewed-by: Dietmar Eggemann <dietmar.eggemann@....com> for
patch 2.
v1->v2:
- Added double_rq_clock_clear_update inline helper to clear RQCF_UPDATED
of rq->clock_update_flags.
- split into two separate patches.
[v1] https://lore.kernel.org/lkml/20220418090929.54005-1-jiahao.os@bytedance.com/
[v2] https://lore.kernel.org/lkml/20220422090944.52618-1-jiahao.os@bytedance.com/
Hao Jia (2):
sched/core: Avoid obvious double update_rq_clock warning
sched/deadline: Remove superfluous rq clock update in push_dl_task()
kernel/sched/core.c | 6 +++---
kernel/sched/deadline.c | 13 ++++---------
kernel/sched/rt.c | 5 +++--
kernel/sched/sched.h | 31 +++++++++++++++++++++++++++----
4 files changed, 37 insertions(+), 18 deletions(-)
--
2.32.0
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