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SubjectRe: [PATCH v9 00/16] re-enable DAX PMD support
On Thu, Nov 03, 2016 at 11:51:02AM -0600, Ross Zwisler wrote:
> On Thu, Nov 03, 2016 at 12:58:26PM +1100, Dave Chinner wrote:
> > On Tue, Nov 01, 2016 at 01:54:02PM -0600, Ross Zwisler wrote:
> > > DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based
> > > locking. This series allows DAX PMDs to participate in the DAX radix tree
> > > based locking scheme so that they can be re-enabled.
> >
> > I've seen patch 0/16 - where did you send the other 16? I need to
> > pick up the bug fix that is in this patch set...
>
> I CC'd your "david@fromorbit.com" address on the entire set, as well as all
> the usual lists (linux-xfs, linux-fsdevel, linux-nvdimm, etc).

Ok, now I'm /really/ confused. Procmail logs show:

From ross.zwisler@linux.intel.com Wed Nov 02 06:56:46 2016
Subject: [PATCH v9 00/16] re-enable DAX PMD support
Folder: incoming/xfs-linux/new/1478030206.9177_1.dastard 5348
From ross.zwisler@linux.intel.com Wed Nov 02 06:56:48 2016
Subject: [PATCH v9 01/16] ext4: tell DAX the size of allocation holes
Folder: incoming/xfs-linux/new/1478030208.9182_1.dastard 3725
From ross.zwisler@linux.intel.com Wed Nov 02 06:56:49 2016
Subject: [PATCH v9 02/16] dax: remove buffer_size_valid()
Folder: incoming/xfs-linux/new/1478030209.9187_1.dastard 4692
.....

so procmail has seen them, and put them all in the same bucket like
it has for everything else.

But only patch 0 appeared in my linux-xfs mail box - the rest of the
files logged by procmail don't exist. No errors or indications of
failures anywhere. They've just vanished into thin air...

> They are also available via the libnvdimm patchwork:
>
> https://patchwork.kernel.org/project/linux-nvdimm/list/
>
> or via my tree:
>
> https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_pmd_v9
>
> The only patch that is different between v8 and v9 is:
> [PATCH v9 14/16] dax: add struct iomap based DAX PMD support

OK, thanks, I'll pull it in.

>
> > > Previously we had talked about this series going through the XFS tree, but
> > > Jan has a patch set that will need to build on this series and it heavily
> > > modifies the MM code. I think he would prefer that series to go through
> > > Andrew Morton's -MM tree, so it probably makes sense for this series to go
> > > through that same tree.
> >
> > Seriously, I was 10 minutes away from pushing out the previous
> > version of this patchset as a stable topic branch, just like has
> > been discussed and several times over the past week. Indeed, I
> > mentioned that I was planning on pushing out this topic branch today
> > not more than 4 hours ago, and you were on the cc list.
>
> I'm confused - I sent v9 of this series out 2 days ago, on Tuesday?
> I have seen multiple messages from you this week saying you were going to pick
> this series up, but I saw them all after I had already sent this series out.

That's what I'm really confused - I replied immediately after this
email appeared in my in-box - I was working from v8 because I didn't
know this version existed. This v9 patch zero email hit procmail on
"Wed Nov 02 06:56:46 2016" and i replied immediately when i saw it:
"On Thu, Nov 03, 2016 at 12:58:26PM +1100,"

So there's some 30 hours between it passing through procmail and
mutt adding it to my inbox. And mutt hasn't see any of the other
emails in the thread.

/me sighs and wonders how much other email has been going missing
lately....

> Sorry for the confusion,

Clearly not your fault, Ross.

> I was just trying to figure out a way that Jan's
> changes could also be merged. Please do pick up v9 of my PMD set. :)

Will do, but I've got to find my way out of WTF-Landia first...

Cheers,

Dave.

--
Dave Chinner
david@fromorbit.com

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