linux-kernel - Re: [RFC][PATCH 02/10] mm: Remove likely() from mapping

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Message-ID: <4CFE6024.6000902@redhat.com>
Date:	Tue, 07 Dec 2010 11:26:12 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nick Piggin <npiggin@...nel.dk>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>
Subject: Re: [RFC][PATCH 02/10] mm: Remove likely() from mapping_unevictable()

On 12/06/2010 09:22 PM, Steven Rostedt wrote:

> The unlikely in page_mapping() was correct a total of 1909540379 times and
> incorrect 1270533123 times, with a 39% being incorrect. Perhaps this is
> enough to remove the unlikely from page_mapping() as well.
>
> Cc: Andrew Morton<akpm@...ux-foundation.org>
> Cc: Nick Piggin<nickpiggin@...oo.com.au>
> Cc: Rik van Riel<riel@...hat.com>
> Cc: Lee Schermerhorn<Lee.Schermerhorn@...com>
> Signed-off-by: Steven Rostedt<rostedt@...dmis.org>

Acked-by: Rik van Riel <riel@...hat.com>

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