From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 8 Jun 2011 01:50:55 +0000 (-0700)
Subject: isci: cleanup/optimize pool implementation
X-Git-Tag: v3.0-rc6~1^2~1^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac668c69709c7d927015c5cf3d9e87bf4eaaf57d;p=pandora-kernel.git

isci: cleanup/optimize pool implementation

The circ_buf macros are ~6% faster, as measured by perf, because they take
advantage of power-of-two math assumptions i.e. no test and branch for
rollover. Their semantics are clearer than the hidden side effects in pool.h
(like sci_pool_get() which hides an assignment).

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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