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From: Christoph Hellwig <hch@infradead.org>
To: Suzuki <suzuki@in.ibm.com>
Cc: linux-fsdevel@vger.kernel.org,
	"linux-aio kvack.org" <linux-aio@kvack.org>,
	lkml <linux-kernel@vger.kernel.org>, suparna <suparna@in.ibm.com>,
	akpm@osdl.org, linux-xfs@oss.sgi.com
Subject: Re: [RFC] Badness in __mutex_unlock_slowpath with XFS stress tests
Date: Thu, 9 Mar 2006 12:03:06 +0000	[thread overview]
Message-ID: <20060309120306.GA26682@infradead.org> (raw)
In-Reply-To: <440FDF3E.8060400@in.ibm.com>

On Thu, Mar 09, 2006 at 01:24:38PM +0530, Suzuki wrote:
> 
> Missed out linux-aio & linux-fs-devel lists. Forwarding.
> 
> Comments ?

I've seen this too.  The problem is that __generic_file_aio_read can return
with or without the i_mutex locked in the direct I/O case for filesystems
that set DIO_OWN_LOCKING.  It's a nasty one and I haven't found a better solution
than copying lots of code from filemap.c into xfs.

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  reply	other threads:[~2006-03-09 12:03 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-09  7:54 [RFC] Badness in __mutex_unlock_slowpath with XFS stress tests Suzuki
2006-03-09 12:03 ` Christoph Hellwig [this message]
2006-03-09 22:30   ` Nathan Scott
2006-03-09 22:42     ` Christoph Hellwig
2006-03-09 23:14       ` Nathan Scott
2006-03-10  0:50         ` Nathan Scott
2006-03-10 15:49           ` Christoph Hellwig
2006-03-14  4:46             ` Suparna Bhattacharya
2006-03-17 17:22           ` Adrian Bunk
2006-03-18  3:34             ` Nathan Scott
2006-03-18  5:03               ` Adrian Bunk
2006-07-10 16:46           ` Stephane Doyon
2006-07-11  0:18             ` Nathan Scott
2006-07-11 13:40               ` Stephane Doyon

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