From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian Foster Subject: Re: [PATCH 6/8] xfs: add DAX truncate support Date: Mon, 6 Apr 2015 13:49:07 -0400 Message-ID: <20150406174906.GD58965@bfoster.bfoster> References: <1427194266-2885-1-git-send-email-david@fromorbit.com> <1427194266-2885-7-git-send-email-david@fromorbit.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, willy@linux.intel.com, jack@suse.cz To: Dave Chinner Return-path: Received: from mx1.redhat.com ([209.132.183.28]:37112 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752791AbbDFRtI (ORCPT ); Mon, 6 Apr 2015 13:49:08 -0400 Content-Disposition: inline In-Reply-To: <1427194266-2885-7-git-send-email-david@fromorbit.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Tue, Mar 24, 2015 at 09:51:04PM +1100, Dave Chinner wrote: > From: Dave Chinner > > When we truncate a DAX file, we need to call through the DAX page > truncation path rather than through block_truncate_page() so that > mappings and block zeroing are all handled correctly. Otherwise, > truncate does not need to change. > > Signed-off-by: Dave Chinner > --- Reviewed-by: Brian Foster > fs/xfs/xfs_iops.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c > index 8b9e688..9ca5352 100644 > --- a/fs/xfs/xfs_iops.c > +++ b/fs/xfs/xfs_iops.c > @@ -851,7 +851,11 @@ xfs_setattr_size( > * to hope that the caller sees ENOMEM and retries the truncate > * operation. > */ > - error = block_truncate_page(inode->i_mapping, newsize, xfs_get_blocks); > + if (IS_DAX(inode)) > + error = dax_truncate_page(inode, newsize, xfs_get_blocks_dax); > + else > + error = block_truncate_page(inode->i_mapping, newsize, > + xfs_get_blocks); > if (error) > return error; > truncate_setsize(inode, newsize); > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs