ARM: improve compiler's ability to optimize page tables

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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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Russell King 2010-11-21 14:42:47 +00:00

parent 589136bfa7

commit c0ba10b512

1 changed files with 3 additions and 0 deletions

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arch/arm/include/asm/pgtable.h

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