From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 21 Nov 2010 14:42:47 +0000 (+0000)
Subject: ARM: improve compiler's ability to optimize page tables
X-Git-Tag: v2.6.37-rc4~31^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c0ba10b512eb2e2a3888b6e6cc0e089f5e7a191b;p=pandora-kernel.git

ARM: improve compiler's ability to optimize page tables

Allow the compiler to better optimize the page table walking code
by avoiding over-complex pmd_addr_end() calculations.  These
calculations prevent the compiler spotting that we'll never iterate
over the PMD table, causing it to create double nested loops where
a single loop will do.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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