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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-11-21 14:42:47 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-11-21 14:42:47 +0000
commitc0ba10b512eb2e2a3888b6e6cc0e089f5e7a191b (patch)
treea5e2ebdb4147df5653ce481a78465d28aa5b15c2 /arch/arm/mach-h720x
parent589136bfa784a4558b397f017ca2f06f0ca9080e (diff)
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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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