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

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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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Russell King 2009-11-19 11:12:15 +00:00

parent 22763c5cf3

commit 0eb948dd7f

1 changed files with 52 additions and 13 deletions

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arch/arm/mm/cache-l2x0.c

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