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Message-ID: <504FB844.7000307@linux.vnet.ibm.com>
Date: Tue, 11 Sep 2012 15:16:36 -0700
From: Wade Cline <clinew@linux.vnet.ibm.com>
MIME-Version: 1.0
To: Josef Bacik <jbacik@fusionio.com>
CC: linux-btrfs@vger.kernel.org, mcao@us.ibm.com
Subject: Re: [PATCH] Btrfs: create a pinned em when writing to a prealloc
 range in DIO
References: <1347392531-10863-1-git-send-email-jbacik@fusionio.com>
In-Reply-To: <1347392531-10863-1-git-send-email-jbacik@fusionio.com>
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On 09/11/2012 12:42 PM, Josef Bacik wrote:
> Wade Cline reported a problem where he was getting garbage and warnings when
> writing to a preallocated range via O_DIRECT.  This is because we weren't
> creating our normal pinned extent_map for the range we were writing to,
> which was causing all sorts of issues.  This patch fixes the problem and
> makes his testcase much happier.  Thanks,
>
> Reported-by: Wade Cline<clinew@linux.vnet.ibm.com>
> Signed-off-by: Josef Bacik<jbacik@fusionio.com>
I ran some basic tests and this seems to have fixed the issue.

Tested-by: Wade Cline <clinew@linux.vnet.ibm.com>

Thank you,
Wade