From: Liu Tao <liutao@safe-mail.net>
To: Oliver Neukum <oliver@neukum.org>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: [patch] Add a writer prior lock methord for rwlock
Date: Wed, 04 Aug 2004 18:30:31 +0800 [thread overview]
Message-ID: <4110BAC7.5010209@safe-mail.net> (raw)
In-Reply-To: <200408041145.07452.oliver@neukum.org>
Oliver Neukum wrote:
>Am Mittwoch, 4. August 2004 11:09 schrieb Liu Tao:
>
>
>>The patch adds the write_forcelock() methord, which has higher priority than
>>read_lock() and write_lock(). The original read_lock() and write_lock()
>>is not
>>touched, and the unlock methord is still write_unlock();
>>
>>
>
>It seems to me that with this a recursive read_lock() with
>a read lock already held may deadlock.
>
> Regards
>
> Oliver
>
Can you give an example path?
Thanks
prev parent reply other threads:[~2004-08-04 10:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-04 9:09 [patch] Add a writer prior lock methord for rwlock Liu Tao
2004-08-04 9:16 ` Arjan van de Ven
2004-08-04 10:29 ` Liu Tao
2004-08-04 10:33 ` William Lee Irwin III
2004-08-04 11:30 ` Liu Tao
2004-08-04 12:14 ` Rik van Riel
2004-08-04 9:45 ` Oliver Neukum
2004-08-04 10:30 ` Liu Tao [this message]
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