linux-kernel - [tip: timers/core] posix-cpu-timers: cpu_clock_sample

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Message-ID: <158305847559.28353.10057852158165316296.tip-bot2@tip-bot2>
Date:   Sun, 01 Mar 2020 10:27:55 -0000
From:   "tip-bot2 for Eric W. Biederman" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Thomas Gleixner <tglx@...utronix.de>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: timers/core] posix-cpu-timers: cpu_clock_sample_group() no
 longer needs siglock

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@...ssion.com>
AuthorDate:    Fri, 28 Feb 2020 11:08:45 -06:00
Committer:     Thomas Gleixner <tglx@...utronix.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@...ssion.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.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)