linux-kernel - Re: [PATCH v3 25/28] bpf: Use RCU in all users of __module_text

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Message-ID: <CAADnVQKOB0AB+VGuO5aG6LCMdfkEp3ACyDmqkX0fk9nFNeUmDw@mail.gmail.com>
Date: Thu, 9 Jan 2025 13:00:41 -0800
From: Alexei Starovoitov <alexei.starovoitov@...il.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: linux-modules@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, 
	Daniel Gomez <da.gomez@...sung.com>, Luis Chamberlain <mcgrof@...nel.org>, 
	"Paul E . McKenney" <paulmck@...nel.org>, Peter Zijlstra <peterz@...radead.org>, 
	Petr Pavlu <petr.pavlu@...e.com>, Sami Tolvanen <samitolvanen@...gle.com>, 
	Thomas Gleixner <tglx@...utronix.de>, Alexei Starovoitov <ast@...nel.org>, Andrii Nakryiko <andrii@...nel.org>, 
	Daniel Borkmann <daniel@...earbox.net>, Eduard Zingerman <eddyz87@...il.com>, Hao Luo <haoluo@...gle.com>, 
	Jiri Olsa <jolsa@...nel.org>, John Fastabend <john.fastabend@...il.com>, 
	KP Singh <kpsingh@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, 
	Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
	Matt Bobrowski <mattbobrowski@...gle.com>, Song Liu <song@...nel.org>, 
	Stanislav Fomichev <sdf@...ichev.me>, Steven Rostedt <rostedt@...dmis.org>, 
	Yonghong Song <yonghong.song@...ux.dev>, bpf <bpf@...r.kernel.org>, 
	linux-trace-kernel <linux-trace-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 25/28] bpf: Use RCU in all users of __module_text_address().

On Thu, Jan 9, 2025 at 12:54 PM Sebastian Andrzej Siewior
<bigeasy@...utronix.de> wrote:
>
> On 2025-01-09 10:38:03 [-0800], Alexei Starovoitov wrote:
> > lgtm.
> > Should we take into bpf-next or the whole set is handled together
> > somewhere?
>
> If you don't mind, I would hope to route the whole series via the
> modules tree. Some of the lower functions (__module_address()) check for
> disabled preemption and will trigger warnings at runtime if this gets
> applied before (earlier in the series) the check gets replaced.

I see. Then

Acked-by: Alexei Starovoitov <ast@...nel.org>