linux-kernel - [PATCH 1/5] posix-cpu-timers: cpu_clock_sample

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Date:   Fri, 28 Feb 2020 11:08:45 -0600
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     <linux-kernel@...r.kernel.org>
Cc:     Oleg Nesterov <oleg@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 1/5] 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 longers needs siglock
protection so remove the stale comment.

Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 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 8ff6da77a01f..46cc188bf5ab 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)
-- 
2.25.0