linux-kernel - Re: [PATCHSET] 0/15 IO scheduler improvements

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Date:	Fri, 14 Jul 2006 22:53:26 +0300
From:	Al Boldi <a1426z@...ab.com>
To:	Jens Axboe <axboe@...e.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCHSET] 0/15 IO scheduler improvements

Jens Axboe wrote:
> On Thu, Jul 13 2006, Al Boldi wrote:
> > Jens Axboe wrote:
> > > This is a continuation of the patches posted yesterday, I continued
> > > to build on them. The patch series does:
> > >
> > > - Move the hash backmerging into the elevator core.
> > > - Move the rbtree handling into the elevator core.
> > > - Abstract the FIFO handling into the elevator core.
> > > - Kill the io scheduler private requests, that require allocation/free
> > >   for each request passed through the system.
> > >
> > > The result is a faster elevator core (and faster IO schedulers), with
> > > a nice net reduction of kernel text and code as well.
> >
> > Thanks!
> >
> > Your efforts are much appreciated, as the current situation is a bit
> > awkward.
>
> It's a good step forward, at least.
>
> > > If you have time, please give this patch series a test spin just to
> > > verify that everything still works for you. Thanks!
> >
> > Do you have a combo-patch against 2.6.17?
>
> Not really, but git let me generate one pretty easily. It has a few
> select changes outside of the patchset as well, but should be ok. It's
> not tested though, should work but the rbtree changes needed to be done
> additionally. If it boots, it should work :-)

patch applies ok
compiles ok
panics on boot at elv_rb_del
patch -R succeeds with lot's of hunks

> I've gzip'ed the patch to avoid problems.

Thanks!

--
Al

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