linux-kernel - Re: [PATCH] un-improve strrchr()

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Date:	Tue, 30 Jun 2015 18:52:11 -0500
From:	Chris Rorvick <chris@...vick.com>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux@...musvillemoes.dk
Subject: Re: [PATCH] un-improve strrchr()

[ resending w/o HTML formatting ]

On Sun, Jun 28, 2015 at 11:44 AM, Alexey Dobriyan <adobriyan@...il.com> wrote:
> Previous code did 1 branch per character + 1 branch for every character
> in the last path component. Current code does 2 branches per characher
> regardless.

Shouldn't that be "+ 2 branches for every character in the last path
component"?  The structure of the loop is basically the same; you're
just performing fewer iterations if the character is found when
searching from the end.

Regards,

Chris
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