From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 19 Nov 2009 11:12:15 +0000 (+0000)
Subject: ARM: cache-l2x0: avoid taking spinlock for every iteration
X-Git-Tag: v2.6.33-rc1~12^2^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0eb948dd7f7c3cec37440c16a6c738c8e75efcda;p=pandora-kernel.git

ARM: cache-l2x0: avoid taking spinlock for every iteration

Taking the spinlock for every iteration is very expensive; instead,
batch iterations up into 4K blocks, releasing and reacquiring the
spinlock between each block.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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