linux-modules.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-20 17:41 [PATCH v2 00/28] module: Use RCU instead of RCU-sched Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 01/28] module: Extend the preempt disabled section in dereference_symbol_descriptor() Sebastian Andrzej Siewior
2025-01-07 10:58   ` Sergey Senozhatsky
2024-12-20 17:41 ` [PATCH v2 02/28] module: Begin to move from RCU-sched to RCU Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 03/28] module: Use proper RCU assignment in add_kallsyms() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 04/28] module: Use RCU in find_kallsyms_symbol() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 05/28] module: Use RCU in module_get_kallsym() Sebastian Andrzej Siewior
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]
2024-12-20 17:41 ` [PATCH v2 07/28] module: Use RCU in __find_kallsyms_symbol_value() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 08/28] module: Use RCU in module_kallsyms_on_each_symbol() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 09/28] module: Remove module_assert_mutex_or_preempt() from try_add_tainted_module() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 10/28] module: Use RCU in find_symbol() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 11/28] module: Use RCU in __is_module_percpu_address() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 12/28] module: Allow __module_address() to be called from RCU section Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 13/28] module: Use RCU in search_module_extables() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 14/28] module: Use RCU in all users of __module_address() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 15/28] module: Use RCU in all users of __module_text_address() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 16/28] ARM: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 17/28] arm64: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 18/28] LoongArch/orc: Use RCU in all users of __module_address() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 19/28] LoongArch: ftrace: Use RCU in all users of __module_text_address() Sebastian Andrzej Siewior
2024-12-27 17:19   ` Steven Rostedt
2025-01-07 17:12     ` Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 20/28] powerpc/ftrace: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 21/28] x86: Use RCU in all users of __module_address() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 22/28] jump_label: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 23/28] jump_label: Use RCU in all users of __module_text_address() Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 24/28] bpf: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 25/28] kprobes: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 26/28] static_call: " Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 27/28] bug: Use RCU instead RCU-sched to protect module_bug_list Sebastian Andrzej Siewior
2024-12-20 17:41 ` [PATCH v2 28/28] cfi: Use RCU while invoking __module_address() Sebastian Andrzej Siewior
2024-12-30 21:13   ` Petr Pavlu
2025-01-02 23:59     ` Sami Tolvanen
2024-12-31  3:33   ` Elliot Berman
2025-01-03  0:24     ` Sami Tolvanen
2025-01-06 18:00       ` Elliot Berman
2025-01-06 21:24         ` Sami Tolvanen
2025-01-07 15:44           ` Sebastian Andrzej Siewior
2025-01-02 12:47 ` [PATCH v2 00/28] module: Use RCU instead of RCU-sched Christophe Leroy
2025-01-07 15:45   ` Sebastian Andrzej Siewior
2025-01-07  8:48 ` Peter Zijlstra

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=Z3afxC738frodOTr@pathway.suse.cz \
    --to=pmladek@suse.com \
    --cc=bigeasy@linutronix.de \
    --cc=da.gomez@samsung.com \
    --cc=jikos@kernel.org \
    --cc=joe.lawrence@redhat.com \
    --cc=jpoimboe@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-modules@vger.kernel.org \
    --cc=linux-trace-kernel@vger.kernel.org \
    --cc=live-patching@vger.kernel.org \
    --cc=mathieu.desnoyers@efficios.com \
    --cc=mbenes@suse.cz \
    --cc=mcgrof@kernel.org \
    --cc=mhiramat@kernel.org \
    --cc=paulmck@kernel.org \
    --cc=peterz@infradead.org \
    --cc=petr.pavlu@suse.com \
    --cc=rostedt@goodmis.org \
    --cc=samitolvanen@google.com \
    --cc=tglx@linutronix.de \
    /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;
as well as URLs for NNTP newsgroup(s).