linux-kernel - Re: [PATCH] include/linux/pktcdvd.h: add mempool.h dependency

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Date:	Wed, 22 Apr 2009 09:06:52 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexander Beregalov <a.beregalov@...il.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Peter Osterlund <petero2@...ia.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] include/linux/pktcdvd.h: add mempool.h dependency


* Jens Axboe <jens.axboe@...cle.com> wrote:

> On Wed, Apr 22 2009, Ingo Molnar wrote:
> > 
> > * Jens Axboe <jens.axboe@...cle.com> wrote:
> > 
> > > On Wed, Apr 22 2009, Ingo Molnar wrote:
> > > > 
> > > > * Ingo Molnar <mingo@...e.hu> wrote:
> > > > 
> > > > > A last-minute build error slipped through:
> > > > >
> > > > >   In file included from fs/compat_ioctl.c:105:
> > > > >   include/linux/pktcdvd.h:285: error: expected specifier-qualifier-list before ???mempool_t???
> > > > 
> > > > Caused by:
> > > > 
> > > >   1ba0c7d: fs/compat_ioctl: fix build when !BLOCK
> > > > 
> > > > fixed by the patch below. The build error itself triggers with 
> > > > !BLOCK
> > > 
> > > This fix is already queued up in the block tree, it just didn't 
> > > make -rc3.
> > 
> > ah, i see - it was posted two days ago:
> > 
> >   [PATCH 2/2] pktcdvd.h should include mempool.h
> > 
> > but the fix should have been queued up in the tree pushing the 
> > compat_ioctl.c change (Viro's). Could have been avoided by 
> > insisting on a fuller explanation in the changelog instead of 
> > just a "Fix this build error" line.
> 
> I didn't realize it was a new build error, so just added both the 
> patches to my lineup. I see that 1/2 went in through Viro's tree, 
> not sure why he didn't pick up 2/2 as well.

this happens - and isnt really a big deal here as !BLOCK is a pretty 
special build form not affecting 99% of our testers. (I first took 
it as something more serious because it triggered on my first build 
iteration after the -rc3 merge.)

> I'll make sure to get it upstream today.

Thanks.

	Ingo
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