Re: [PATCH 0/4] ext4: DAX fixes

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On Mon, May 16, 2016 at 8:59 AM, Jan Kara <jack@xxxxxxx> wrote:
> On Mon 16-05-16 08:13:50, Dan Williams wrote:
>> On Mon, May 16, 2016 at 8:08 AM, Theodore Ts'o <tytso@xxxxxxx> wrote:
>> > On Mon, May 16, 2016 at 04:26:16PM +0200, Jan Kara wrote:
>> >> 1) Just push patches as is and have ext4 dax broken between ext4 merge and
>> >> nvdimm merge.
>> >>
>> >> 2) Split out the one-line change from "dax: Remove dead zeroing code from
>> >> fault handlers" in __dax_fault() which fixes the behavior for ext4 and
>> >> merge it through ext4 tree. Merge the rest through nvdimm tree.
>> >
>> > I'm good either way, although I have a slight preference for (2).
>> > It's really tiny preference, though, so if you or Dan want to run the
>> > fix through the dax branch, that's fine too.
>>
>> Would you fold the change and trigger a rebase or just apply it on
>> top?  If just applying on top then it seems the same exposure as
>> merging it intact through nvdimm.git.
>
> The patch which fixes ext4 behavior is attached. Just that we know what we
> are speaking about... Rebasing all the patches on top of this is trivial
> (git rebase just handles the conflict automatically).
>
> I've scheduled full ext4 & XFS xfstest run with just this patch and ext4
> fixes to make sure it doesn't introduce some intermediate regresion
> somewhere.
>

Ok, sounds good.  It makes the most sense to base the nvdimm.git
branch on top of this fix.
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