linux-kernel - Re: [PATCH 17/21] Percpu tag allocator

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Date:	Tue, 14 May 2013 16:24:42 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Kent Overstreet <koverstreet@...gle.com>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-aio@...ck.org, akpm@...ux-foundation.org,
	Tejun Heo <tj@...nel.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH 17/21] Percpu tag allocator

On 05/14, Oleg Nesterov wrote:
>
> I must admit, I do not understand what this code actually does ;)
> I didn't try to read it carefully though, but perhaps at least the
> changelog could explain more?

OK, this is clear...

But perhaps the changelog could explain who needs the "fast" version
of, say, find_next_zero_bit + test_and_set_bit ;) Just curious.

Oleg.

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