linux-kernel - [tip: sched/core] stop_machine: Add caller debug info to queue_stop_cpus

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Date:   Tue, 23 Mar 2021 15:08:57 -0000
From:   "tip-bot2 for Valentin Schneider" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Valentin Schneider <valentin.schneider@....com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: sched/core] stop_machine: Add caller debug info to queue_stop_cpus_work

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     2a2f80ff63bc36a874ed569bcaef932a8fe43514
Gitweb:        https://git.kernel.org/tip/2a2f80ff63bc36a874ed569bcaef932a8fe43514
Author:        Valentin Schneider <valentin.schneider@....com>
AuthorDate:    Thu, 10 Dec 2020 16:38:29 
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Tue, 23 Mar 2021 16:01:58 +01:00

stop_machine: Add caller debug info to queue_stop_cpus_work

Most callsites were covered by commit

  a8b62fd08505 ("stop_machine: Add function and caller debug info")

but this skipped queue_stop_cpus_work(). Add caller debug info to it.

Signed-off-by: Valentin Schneider <valentin.schneider@....com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/20201210163830.21514-2-valentin.schneider@arm.com
---
 kernel/stop_machine.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 971d8ac..cbc3027 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -409,6 +409,7 @@ static bool queue_stop_cpus_work(const struct cpumask *cpumask,
 		work->fn = fn;
 		work->arg = arg;
 		work->done = done;
+		work->caller = _RET_IP_;
 		if (cpu_stop_queue_work(cpu, work))
 			queued = true;
 	}