From: Steven Rostedt <rostedt@goodmis.org>
To: "Jérémy Jean" <Jeremy.Jean@oss.cyber.gouv.fr>
Cc: mhiramat@kernel.org, mathieu.desnoyers@efficios.com,
brads@mainlining.org, linux-kernel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH v2] tracing/user_events: Clear copied tracing state before fork duplication
Date: Thu, 27 Aug 2026 08:08:39 -0400 [thread overview]
Message-ID: <20260827080839.35e44d04@gandalf.local.home> (raw)
In-Reply-To: <20260826214414.1971632-2-Jeremy.Jean@oss.cyber.gouv.fr>
On Wed, 26 Aug 2026 21:44:15 +0000
Jérémy Jean <Jeremy.Jean@oss.cyber.gouv.fr> wrote:
> diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c
> index 2bbc89d4a266..339e18085af3 100644
> --- a/kernel/trace/trace_events_user.c
> +++ b/kernel/trace/trace_events_user.c
> @@ -865,9 +865,12 @@ void user_event_mm_remove(struct task_struct *t)
>
> void user_event_mm_dup(struct task_struct *t, struct user_event_mm *old_mm)
> {
> - struct user_event_mm *mm = user_event_mm_alloc(t);
> + struct user_event_mm *mm;
Why this change?
> struct user_event_enabler *enabler;
>
> + t->user_event_mm = NULL;
> + mm = user_event_mm_alloc(t);
I don't see why you moved the mm assignment down here. The t->user_event_mm
is not used in user_event_mm_alloc().
-- Steve
> +
> if (!mm)
> return;
>
next prev parent reply other threads:[~2026-08-27 12:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-26 21:44 [PATCH v2] tracing/user_events: Clear copied tracing state before fork duplication Jérémy Jean
2026-08-26 22:37 ` Bradley Morgan
2026-08-27 7:15 ` Jérémy Jean
2026-08-27 9:45 ` Bradley Morgan
2026-08-27 12:15 ` Steven Rostedt
2026-08-27 12:17 ` Bradley Morgan
2026-08-27 12:08 ` Steven Rostedt [this message]
2026-08-27 12:09 ` Bradley Morgan
2026-08-27 12:19 ` Steven Rostedt
2026-08-27 12:24 ` Bradley Morgan
2026-08-27 12:27 ` Jérémy Jean
2026-08-27 12:29 ` Bradley Morgan
2026-08-27 12:43 ` Steven Rostedt
2026-08-27 12:44 ` Bradley Morgan
2026-08-27 12:42 ` Steven Rostedt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260827080839.35e44d04@gandalf.local.home \
--to=rostedt@goodmis.org \
--cc=Jeremy.Jean@oss.cyber.gouv.fr \
--cc=brads@mainlining.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mhiramat@kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox