linux-kernel - Re: [PATCH v3] lib/idr.c rewrite, percpu ida/tag allocator

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Message-Id: <20130708131627.02af52fbf809ed44dc044b89@linux-foundation.org>
Date:	Mon, 8 Jul 2013 13:16:27 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc:	Kent Overstreet <kmo@...erainc.com>, linux-kernel@...r.kernel.org,
	tj@...nel.org, sfr@...b.auug.org.au, andi@...stfloor.org,
	oleg@...hat.com, mingo@...hat.com, axboe@...nel.dk,
	"Michael S. Tsirkin" <mst@...hat.com>,
	target-devel <target-devel@...r.kernel.org>
Subject: Re: [PATCH v3] lib/idr.c rewrite, percpu ida/tag allocator

On Sat, 06 Jul 2013 15:59:06 -0700 "Nicholas A. Bellinger" <nab@...ux-iscsi.org> wrote:

> On Fri, 2013-07-05 at 22:08 -0700, Kent Overstreet wrote:
> > Previous posting: http://thread.gmane.org/gmane.linux.kernel/1511216
> > 
> > The only real change since the last version is that I've reworked the
> > new ida implementation to not use one giant allocation - it's still
> > logically one big arary, but it's implemented as an array of arrays.
> > 
> > With that, it scales up to INT_MAX allocated ids just fine. Benchmarks
> > are included in that patch.
> > 
> > Patch series is available in my git repo:
> > git://evilpiepirate.org/~kent/linux-bcache.git idr
> > 
> > Andrew, want to pick this up for 3.12?
> 
> Just FYI that the target-pending/target-per-cpu-ida branch utilizing
> per-cpu ida logic for vhost-scsi has been rebased to include this latest
> series.  Thanks Kent!
> 
> Andrew, what are your plans for this..?

Firstly, to review it.  It's a lot of code so I'll be doing this after
-rc1 is released.

Meanwhile, we probably need a resend - all the patches hit my inbox
directly, but quite a lot of them failed to come through on
linux-kernel - it appears that the patches which had huuuuuge Cc lists
were suppressed.
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