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Date: Thu, 28 Jun 2012 01:34:54 -0700
From: Joel Becker <jlbec@evilplan.org>
To: Junxiao Bi <junxiao.bi@oracle.com>
Cc: ocfs2-devel@oss.oracle.com, linux-aio@kvack.org, mfasheh@suse.com,
        akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
        joe.jin@oracle.com
Subject: Re: [V4]fix ocfs2 aio/dio writing process hang
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Btw, do you want me to pull these through the ocfs2 tree, or are you
sending them along yourself?

Joel

On Wed, Jun 27, 2012 at 05:09:53PM +0800, Junxiao Bi wrote:
> 
> V4 changes:
> add Acked-by: Joel Becker <jlbec@evilplan.org>
> 
> V3 changes:
> - add Cc: stable@vger.kernel.org in the patch header to align with stable rules
> - add Acked-by: Jeff Moyer <jmoyer@redhat.com>
> 
> V2 changes:
> - update the patch header of the first patch to make it more clear.
> 
> 
> This patch list fixes an issue about ocfs2 aio/dio write process hang.
> The call trace is like this:
> @  cat /proc/15913/stack
> @ [<ffffffffa06e1085>] ocfs2_aiodio_wait+0x85/0xc0 [ocfs2]
> @ [<ffffffffa06e3e39>] ocfs2_file_aio_write+0x99/0xa0 [ocfs2]
> @ [<ffffffff811ace97>] aio_rw_vect_retry+0x87/0x150
> @ [<ffffffff811aebd1>] aio_run_iocb+0x71/0x170
> @ [<ffffffff811af59b>] io_submit_one+0x1ab/0x280
> @ [<ffffffff811af77c>] do_io_submit+0x10c/0x1c0
> @ [<ffffffff811af840>] sys_io_submit+0x10/0x20
> @ [<ffffffff81509b42>] system_call_fastpath+0x16/0x1b
> @ [<ffffffffffffffff>] 0xffffffffffffffff
> --
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-- 

 Joel's Second Law:

	If a code change requires additional user setup, it is wrong.

			http://www.jlbec.org/
			jlbec@evilplan.org
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