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From: Michal Hocko <mhocko@suse.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrii Nakryiko <andrii@kernel.org>,
	linux-trace-kernel@vger.kernel.org, peterz@infradead.org,
	mingo@kernel.org, bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org, kernel-team@meta.com,
	oleg@redhat.com, brauner@kernel.org, glider@google.com,
	mhiramat@kernel.org, mathieu.desnoyers@efficios.com,
	akpm@linux-foundation.org
Subject: Re: [PATCH] exit: add trace_task_exit() tracepoint before current->mm is reset
Date: Wed, 2 Apr 2025 09:18:34 +0200	[thread overview]
Message-ID: <Z-zkylk6r_rZ5V_K@tiehlicka> (raw)
In-Reply-To: <20250401173416.45a164c8@gandalf.local.home>

On Tue 01-04-25 17:34:16, Steven Rostedt wrote:
> On Tue, 1 Apr 2025 17:32:49 -0400
> Steven Rostedt <rostedt@goodmis.org> wrote:
> 
> > static void exit_mm(void)
> > {
> > 	struct mm_struct *mm = current->mm;
> > 
> > 	exit_mm_release(current, mm);
> > 	trace_exit_mm(mm);
> > 
> > ??
> 
> That should have been:
> 
> static void exit_mm(void)
> {
> 	struct mm_struct *mm = current->mm;
> 
> 	trace_exit_mm(mm);
> 	exit_mm_release(current, mm);

If the primary usecase is to get an overview of the mm before exiting
then this is more appropriate.

-- 
Michal Hocko
SUSE Labs

  reply	other threads:[~2025-04-02  7:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-01 18:40 [PATCH] exit: add trace_task_exit() tracepoint before current->mm is reset Andrii Nakryiko
2025-04-01 21:32 ` Steven Rostedt
2025-04-01 21:34   ` Steven Rostedt
2025-04-02  7:18     ` Michal Hocko [this message]
2025-04-01 22:04   ` Andrii Nakryiko
2025-04-01 22:13     ` Steven Rostedt
2025-04-01 22:17       ` Andrii Nakryiko
2025-04-02 10:27         ` Jiri Olsa
2025-04-02  7:20     ` Michal Hocko
2025-04-02 13:58       ` Steven Rostedt
2025-04-02 15:56       ` Andrii Nakryiko
2025-04-02  8:27 ` Peter Zijlstra

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