linux-kernel - Re: What's in linux-2.6-block.git for 2.6.32

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Message-ID: <x49d45xa93a.fsf@segfault.boston.devel.redhat.com>
Date:	Fri, 11 Sep 2009 09:45:29 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: What's in linux-2.6-block.git for 2.6.32

Jens Axboe <jens.axboe@...cle.com> writes:

> Hi,
>
> This is just the core block bits, I have other branches pending. And a
> heads up that I had to rebase this branch today, something I haven't
> done during the .31 cycle. This was due to the history being really odd,
> with modified patches of for-2.6.32 patches being forwarded to mainline.
> So I though it would be better to clean this history and merge fixups.
> There was also a middle point that would break bisection.
>
> Nothing really earth shattering in here, nor are there really big
> changes for this cycle.
>
> - Some updates to CFQ to improve interactiveness.
> - Some cleanups and sanitization of the bio IO flags.
> - blk-iopoll, an experimental API for doing NAPI like polled completions
>   for really fast devices. In testing this has shown to be faster for
>   some cases, while slower for others. The included patch is just the
>   core bits, no driver support is being merged yet.
> - Enable CPU IO completion by default. My testing has shown this to be
>   faster, and independent testing by Intel confirms that as well.
> - A fix to only issue a block queue trace when we actually intend to
>   queue.
> - A fix for splice to update mtime and atime on files.
> - A cleanup of the failfast bits and merge fixups for the same.

Any particular reason you're holding off on the pktcdvd regression fix I
posted?

Cheers,
Jeff
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