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From: Petr Mladek <pmladek@suse.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org,
	Daniel Gomez <da.gomez@samsung.com>,
	Luis Chamberlain <mcgrof@kernel.org>,
	"Paul E . McKenney" <paulmck@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Petr Pavlu <petr.pavlu@suse.com>,
	Sami Tolvanen <samitolvanen@google.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jiri Kosina <jikos@kernel.org>,
	Joe Lawrence <joe.lawrence@redhat.com>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Miroslav Benes <mbenes@suse.cz>,
	Steven Rostedt <rostedt@goodmis.org>,
	linux-trace-kernel@vger.kernel.org,
	live-patching@vger.kernel.org
Subject: Re: [PATCH v2 06/28] module: Use RCU in find_module_all().
Date: Thu, 2 Jan 2025 15:16:36 +0100	[thread overview]
Message-ID: <Z3afxC738frodOTr@pathway.suse.cz> (raw)
In-Reply-To: <20241220174731.514432-7-bigeasy@linutronix.de>

On Fri 2024-12-20 18:41:20, Sebastian Andrzej Siewior wrote:
> The modules list and module::kallsyms can be accessed under RCU
> assumption.
> 
> Remove module_assert_mutex_or_preempt() from find_module_all() so it can
> be used under RCU protection without warnings. Update its callers to use
> RCU protection instead of preempt_disable().
> 
> Cc: Jiri Kosina <jikos@kernel.org>
> Cc: Joe Lawrence <joe.lawrence@redhat.com>
> Cc: Josh Poimboeuf <jpoimboe@kernel.org>
> Cc: Masami Hiramatsu <mhiramat@kernel.org>
> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Cc: Miroslav Benes <mbenes@suse.cz>
> Cc: Petr Mladek <pmladek@suse.com>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: linux-trace-kernel@vger.kernel.org
> Cc: live-patching@vger.kernel.org
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
>  include/linux/module.h      | 2 +-
>  kernel/livepatch/core.c     | 4 +---
>  kernel/module/kallsyms.c    | 1 +
>  kernel/module/main.c        | 6 ++----
>  kernel/trace/trace_kprobe.c | 9 +++------
>  5 files changed, 8 insertions(+), 14 deletions(-)

I looked primary on the changes in the livepatch code. But the entire
patch looks good to me:

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr

      reply	other threads:[~2025-01-02 14:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20241220174731.514432-1-bigeasy@linutronix.de>
2024-12-20 17:41 ` [PATCH v2 06/28] module: Use RCU in find_module_all() Sebastian Andrzej Siewior
2025-01-02 14:16   ` Petr Mladek [this message]

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