From: "tip-bot2 for Eric W. Biederman" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Thomas Gleixner <tglx@linutronix.de>, x86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [tip: timers/core] posix-cpu-timers: cpu_clock_sample_group() no longer needs siglock
Date: Sun, 01 Mar 2020 10:27:55 -0000 [thread overview]
Message-ID: <158305847559.28353.10057852158165316296.tip-bot2@tip-bot2> (raw)
In-Reply-To: <87eeuevduq.fsf@x220.int.ebiederm.org>
The following commit has been merged into the timers/core branch of tip:
Commit-ID: a2efdbf4fcb38ec1ae99c9d54d52c34fa867dc71
Gitweb: https://git.kernel.org/tip/a2efdbf4fcb38ec1ae99c9d54d52c34fa867dc71
Author: Eric W. Biederman <ebiederm@xmission.com>
AuthorDate: Fri, 28 Feb 2020 11:08:45 -06:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Sun, 01 Mar 2020 11:21:43 +01:00
posix-cpu-timers: cpu_clock_sample_group() no longer needs siglock
As of e78c3496790e ("time, signal: Protect resource use statistics with
seqlock") cpu_clock_sample_group() no longer needs siglock protection so
remove the stale comment.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/87eeuevduq.fsf@x220.int.ebiederm.org
---
kernel/time/posix-cpu-timers.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 8ff6da7..46cc188 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -336,9 +336,7 @@ static void __thread_group_cputime(struct task_struct *tsk, u64 *samples)
/*
* Sample a process (thread group) clock for the given task clkid. If the
* group's cputime accounting is already enabled, read the atomic
- * store. Otherwise a full update is required. Task's sighand lock must be
- * held to protect the task traversal on a full update. clkid is already
- * validated.
+ * store. Otherwise a full update is required. clkid is already validated.
*/
static u64 cpu_clock_sample_group(const clockid_t clkid, struct task_struct *p,
bool start)
next prev parent reply other threads:[~2020-03-01 10:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-28 17:07 [PATCH 0/5] posix-cpu-timers: Graceful handling of reaped processes Eric W. Biederman
2020-02-28 17:08 ` [PATCH 1/5] posix-cpu-timers: cpu_clock_sample_group no longer needs siglock Eric W. Biederman
2020-03-01 10:27 ` tip-bot2 for Eric W. Biederman [this message]
2020-02-28 17:09 ` [PATCH 2/5] posix-cpu-timers: Remove unnecessary locking around cpu_clock_sample_group Eric W. Biederman
2020-03-01 10:27 ` [tip: timers/core] " tip-bot2 for Eric W. Biederman
2020-02-28 17:09 ` [PATCH 3/5] posix-cpu-timers: Pass the task into arm_timer Eric W. Biederman
2020-03-01 10:27 ` [tip: timers/core] posix-cpu-timers: Pass the task into arm_timer() tip-bot2 for Eric W. Biederman
2020-02-28 17:11 ` [PATCH 4/5] posix-cpu-timers: Store a reference to a pid not a task Eric W. Biederman
2020-03-01 10:27 ` [tip: timers/core] " tip-bot2 for Eric W. Biederman
2020-03-04 8:57 ` tip-bot2 for Eric W. Biederman
2020-02-28 17:15 ` [PATCH 5/5] posix-cpu-timers: Stop disabling timers on mt-exec Eric W. Biederman
2020-03-01 10:27 ` [tip: timers/core] " tip-bot2 for Eric W. Biederman
2020-03-04 8:57 ` tip-bot2 for Eric W. Biederman
2020-02-29 20:49 [tip: timers/core] posix-cpu-timers: cpu_clock_sample_group() no longer needs siglock tip-bot2 for Eric W. Biederman
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