linux-kernel - RE: [PATCH 2.6.23-rc7 0/3] async_tx and md-accel fixes for 2.6.23

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Date:	Fri, 21 Sep 2007 17:45:39 -0700
From:	"Williams, Dan J" <dan.j.williams@...el.com>
To:	"Neil Brown" <neilb@...e.de>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	<linux-kernel@...r.kernel.org>, <linux-raid@...r.kernel.org>,
	<yur@...raft.com>, <saeed.bishara@...il.com>,
	"Nelson, Shannon" <shannon.nelson@...el.com>
Subject: RE: [PATCH 2.6.23-rc7 0/3] async_tx and md-accel fixes for 2.6.23

> From: Neil Brown [mailto:neilb@...e.de]
> On Friday September 21, akpm@...ux-foundation.org wrote:
> > On Thu, 20 Sep 2007 18:27:35 -0700
> > Dan Williams <dan.j.williams@...el.com> wrote:
> >
> > > Fix a couple bugs and provide documentation for the async_tx api.
> > >
> > > Neil, please 'ack' patch #3.
> > >
> > > git://lost.foo-projects.org/~dwillia2/git/iop
async-tx-fixes-for-linus
> >
> > Well it looks like Neil is on vacation or is hiding from us or
something.
> 
> Neil is just not coping well with jet-lag....
> 
> Patch #3 looks good and necessary
>   Acked-By: NeilBrown <neilb@...e.de>
> 
> I know that should probably be a "reviewed-by"....  I was a bit
I went ahead and added reviewed-by.

> surprised that the "handle_completed_read_requests" call was so early
> in handle_stripe5 - I don't think the code was originally that early.
It is slightly earlier than 2.6.22 (outside the '/* now count some
things */' loop) to make sure the R5_Wantfill flags from the last
request have been cleared before starting a new one:

		/* maybe we can request a biofill operation
		 *
		 * new wantfill requests are only permitted while
		 * STRIPE_OP_BIOFILL is clear
		 */
		if (test_bit(R5_UPTODATE, &dev->flags) && dev->toread &&
			!test_bit(STRIPE_OP_BIOFILL, &sh->ops.pending))
			set_bit(R5_Wantfill, &dev->flags);

> But it is probably right.   Hopefully my brain will have cleared by
> Monday and I'll review it again then.
>

Ok, the tree is updated with 'Reviewed-by' tags and the proposed
documentation updates from Randy and Shannon.

git://lost.foo-projects.org/~dwillia2/git/iop async-tx-fixes-for-linus

Dan Williams (3):
      async_tx: usage documentation and developer notes (v2)
      async_tx: fix dma_wait_for_async_tx
      raid5: fix ops_complete_biofill

> NeilBrown

--
Dan
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