linux-kernel - Re: [PATCH 1/5][RFC][CFT] percpu fixes, part 1

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Date:	Fri, 7 Mar 2014 02:52:06 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-fsdevel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Stephen Tweedie <sct@...hat.com>,
	Jeremy Eder <jeder@...hat.com>
Subject: Re: [PATCH 1/5][RFC][CFT] percpu fixes, part 1

On Thu, Mar 06, 2014 at 03:47:26PM -0500, Tejun Heo wrote:

> Not much, but it should at least help bisection if something goes
> wrong, I think.

OK.  It looks better when folding pcpu_split_block() into the caller
is done as the first step.  See the attached 3 patches - combination
is the same, modulo comment addition and switching seen_free to bool.

View attachment "0001-perpcu-fold-pcpu_split_block-into-the-only-caller.patch" of type "text/plain" (3011 bytes)

View attachment "0002-percpu-store-offsets-instead-of-lengths-in-map.patch" of type "text/plain" (9181 bytes)

View attachment "0003-percpu-speed-alloc_pcpu_area-up.patch" of type "text/plain" (2486 bytes)