linux-kernel - Re: [PATCH 05/13] kallsyms: refactor {,module_}kallsyms_on_each

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Date:   Mon, 1 Feb 2021 15:02:40 +0100 (CET)
From:   Miroslav Benes <mbenes@...e.cz>
To:     Christoph Hellwig <hch@....de>
cc:     Frederic Barrat <fbarrat@...ux.ibm.com>,
        Andrew Donnellan <ajd@...ux.ibm.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Jessica Yu <jeyu@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Jiri Kosina <jikos@...nel.org>, Petr Mladek <pmladek@...e.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        dri-devel@...ts.freedesktop.org, live-patching@...r.kernel.org,
        linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 05/13] kallsyms: refactor
 {,module_}kallsyms_on_each_symbol

One more thing...

> @@ -4379,8 +4379,7 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
>  	unsigned int i;
>  	int ret;
>  
> -	module_assert_mutex();
> -
> +	mutex_lock(&module_mutex);
>  	list_for_each_entry(mod, &modules, list) {
>  		/* We hold module_mutex: no need for rcu_dereference_sched */
>  		struct mod_kallsyms *kallsyms = mod->kallsyms;

This was the last user of module_assert_mutex(), which can be removed now.

Miroslav