linux-kernel - Re: [PATCH 2/2] ocfs2: clear unaligned io flag when dio fails

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Message-ID: <4FC6F55F.7040507@oracle.com>
Date:	Thu, 31 May 2012 12:36:47 +0800
From:	Joe Jin <joe.jin@...cle.com>
To:	Junxiao Bi <junxiao.bi@...cle.com>
CC:	ocfs2-devel@....oracle.com, linux-aio@...ck.org, mfasheh@...e.com,
	jlbec@...lplan.org, bcrl@...ck.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org,
	David John Kleikamp <dave.kleikamp@...cle.com>
Subject: Re: [PATCH 2/2] ocfs2: clear unaligned io flag when dio fails

Cc David.

On 05/31/12 12:12, Junxiao Bi wrote:
> The unaligned io flag is set in the kiocb when an unaligned
> dio is issued, it should be cleared even when the dio fails,
> or it may affect the following io which are using the same
> kiocb.
> 
> Signed-off-by: Junxiao Bi <junxiao.bi@...cle.com>
> ---
>  fs/ocfs2/file.c |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
> index 061591a..98513c8 100644
> --- a/fs/ocfs2/file.c
> +++ b/fs/ocfs2/file.c
> @@ -2422,8 +2422,10 @@ out_dio:
>  		unaligned_dio = 0;
>  	}
>  
> -	if (unaligned_dio)
> +	if (unaligned_dio) {
> +		ocfs2_iocb_clear_unaligned_aio(iocb);
>  		atomic_dec(&OCFS2_I(inode)->ip_unaligned_aio);
> +	}
>  
>  out:
>  	if (rw_level != -1)


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ORACLE | Linux and Virtualization
No. 24 Zhongguancun Software Park, Haidian District | 100193 Beijing 
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