From: Rusty Russell <rusty@rustcorp.com.au>
To: Pavel Emelyanov <xemul@openvz.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Module init call vs symbols exporting race?
Date: Tue, 6 Nov 2007 23:41:34 +1100 [thread overview]
Message-ID: <200711062341.34566.rusty@rustcorp.com.au> (raw)
In-Reply-To: <473031FA.2060707@openvz.org>
On Tuesday 06 November 2007 20:20:58 Pavel Emelyanov wrote:
> Hi.
>
> I looked at the sys_init_module() and found that the ->init callback
> for the module is called without the module_mutex held and *after*
> the module's symbols are exported. Doesn't this create the race when
> loading two modules in parallel? Like this.
Hi Pavel,
In a word, no. See "strong_try_module_get()".
Cheers,
Rusty.
next prev parent reply other threads:[~2007-11-06 12:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-06 9:20 Module init call vs symbols exporting race? Pavel Emelyanov
2007-11-06 12:41 ` Rusty Russell [this message]
2007-11-07 10:01 ` Jan Glauber
2007-11-08 2:10 ` Rusty Russell
2007-11-09 11:44 ` Jon Masters
2007-11-09 12:16 ` Jan Glauber
2007-11-10 7:27 ` Rusty Russell
2007-11-12 14:03 ` Jan Glauber
2007-11-09 16:06 ` Jan Glauber
2007-11-10 20:23 ` Andi Kleen
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