From: Chengming Zhou <zhouchengming@bytedance.com>
To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
jolsa@kernel.org, namhyung@kernel.org, eranian@google.com
Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
duanxiongchun@bytedance.com, songmuchun@bytedance.com,
Chengming Zhou <zhouchengming@bytedance.com>
Subject: [PATCH v3 0/5] perf/core: Fixes and cleanup for cgroup events
Date: Fri, 25 Mar 2022 11:53:13 +0800 [thread overview]
Message-ID: <20220325035318.42168-1-zhouchengming@bytedance.com> (raw)
Hi,
This patchset mainly fix a race problem between cgroup_migrate_execute()
and perf_cgroup_sched_out/in().
v3:
- put two fix patches together in patch 4
- delete percpu cpu_perf_cgroup, just use cpuctx->cgrp to compare
- reorganize these patches' order
v2:
- split into two patches to fix the race problem for easier review
- use cpuctx->cgrp when start ctx time and delete unused task argument
- use cpuctx->cgrp when update ctx time from cgroup perf_event
- always set cpuctx->cgrp when the first cgroup event enabled
- remove obselete comments
v1:
- https://lore.kernel.org/lkml/20220308135948.55336-1-zhouchengming@bytedance.com/
Chengming Zhou (5):
perf/core: Don't pass task around when ctx sched in
perf/core: Use perf_cgroup_info->active to check if cgroup is active
perf/core: Don't need event_filter_match in merge_sched_in()
perf/core: Fix perf_cgroup_switch()
perf/core: Always set cpuctx cgrp when enable cgroup event
kernel/events/core.c | 212 +++++++++++--------------------------------
1 file changed, 52 insertions(+), 160 deletions(-)
--
2.20.1
next reply other threads:[~2022-03-25 3:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-25 3:53 Chengming Zhou [this message]
2022-03-25 3:53 ` [PATCH v3 1/5] perf/core: Don't pass task around when ctx sched in Chengming Zhou
2022-03-25 3:53 ` [PATCH v3 2/5] perf/core: Use perf_cgroup_info->active to check if cgroup is active Chengming Zhou
2022-03-25 3:53 ` [PATCH v3 3/5] perf/core: Don't need event_filter_match in merge_sched_in() Chengming Zhou
2022-03-25 15:11 ` Liang, Kan
2022-03-25 15:45 ` [External] " Chengming Zhou
2022-03-25 3:53 ` [PATCH v3 4/5] perf/core: Fix perf_cgroup_switch() Chengming Zhou
2022-03-25 3:53 ` [PATCH v3 5/5] perf/core: Always set cpuctx cgrp when enable cgroup event Chengming Zhou
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