From: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Date: Tue, 21 Mar 2006 05:29:05 +0000 (-0800)
Subject: [AF_UNIX]: use shift instead of integer division
X-Git-Tag: v2.6.17-rc1~1175^2~115
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9df7d7f584666533b1bdfcf5c60a43d64689198;p=pandora-kernel.git

[AF_UNIX]: use shift instead of integer division

The patch below replaces a divide by 2 with a shift -- sk_sndbuf is an
integer, so gcc emits an idiv, which takes 10x longer than a shift by 1.
This improves af_unix bandwidth by ~6-10K/s.  Also, tidy up the comment
to fit in 80 columns while we're at it.

Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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