From: Brian Foster <bfoster@redhat.com>
To: Dave Chinner <david@fromorbit.com>
Cc: ross.zwisler@linux.intel.com, jack@suse.cz, xfs@oss.sgi.com
Subject: Re: [PATCH 4/6] xfs: DAX does not use IO completion callbacks
Date: Fri, 30 Oct 2015 08:37:04 -0400 [thread overview]
Message-ID: <20151030123704.GD54905@bfoster.bfoster> (raw)
In-Reply-To: <20151029233911.GT19199@dastard>
On Fri, Oct 30, 2015 at 10:39:11AM +1100, Dave Chinner wrote:
> On Thu, Oct 29, 2015 at 10:29:57AM -0400, Brian Foster wrote:
> > On Mon, Oct 19, 2015 at 02:27:16PM +1100, Dave Chinner wrote:
> > > From: Dave Chinner <dchinner@redhat.com>
> > >
> > > For DAX, we are now doing block zeroing and
> > > we are updating the file size during allocation. This means we no
> > > longer need an IO completion callback to do these things, so remove
> > > the completion callbacks from the __dax_fault and __dax_mkwrite
> > > calls.
> > >
> >
> > Where do we "update the file size during allocation?"
>
> Stale comment. For page faults, we'll never update the file size
> (segv if fault is beyond EOF), and DIO still does IO completion
> based file size updates.
>
Ok. With that fixed up:
Reviewed-by: Brian Foster <bfoster@redhat.com>
> Cheers,
>
> Dave.
> --
> Dave Chinner
> david@fromorbit.com
>
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next prev parent reply other threads:[~2015-10-30 12:37 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-19 3:27 [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Dave Chinner
2015-10-19 3:27 ` [PATCH 1/6] xfs: fix inode size update overflow in xfs_map_direct() Dave Chinner
2015-10-29 14:27 ` Brian Foster
2015-10-19 3:27 ` [PATCH 2/6] xfs: introduce BMAPI_ZERO for allocating zeroed extents Dave Chinner
2015-10-29 14:27 ` Brian Foster
2015-10-29 23:35 ` Dave Chinner
2015-10-30 12:36 ` Brian Foster
2015-11-02 1:21 ` Dave Chinner
2015-10-19 3:27 ` [PATCH 3/6] xfs: Don't use unwritten extents for DAX Dave Chinner
2015-10-29 14:29 ` Brian Foster
2015-10-29 23:37 ` Dave Chinner
2015-10-30 12:36 ` Brian Foster
2015-11-02 1:14 ` Dave Chinner
2015-11-02 14:15 ` Brian Foster
2015-11-02 21:44 ` Dave Chinner
2015-11-03 3:53 ` Dan Williams
2015-11-03 5:04 ` Dave Chinner
2015-11-04 0:50 ` Ross Zwisler
2015-11-04 1:02 ` Dan Williams
2015-11-04 4:46 ` Ross Zwisler
2015-11-04 9:06 ` Jan Kara
2015-11-04 15:35 ` Ross Zwisler
2015-11-04 17:21 ` Jan Kara
2015-11-03 9:16 ` Jan Kara
2015-10-19 3:27 ` [PATCH 4/6] xfs: DAX does not use IO completion callbacks Dave Chinner
2015-10-29 14:29 ` Brian Foster
2015-10-29 23:39 ` Dave Chinner
2015-10-30 12:37 ` Brian Foster [this message]
2015-10-19 3:27 ` [PATCH 5/6] xfs: add ->pfn_mkwrite support for DAX Dave Chinner
2015-10-29 14:30 ` Brian Foster
2015-10-19 3:27 ` [PATCH 6/6] xfs: xfs_filemap_pmd_fault treats read faults as write faults Dave Chinner
2015-10-29 14:30 ` Brian Foster
2015-11-05 23:48 ` [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Ross Zwisler
2015-11-06 22:32 ` Dave Chinner
2015-11-06 18:12 ` Boylston, Brian
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