arm64: percpu: kill off final ACCESS_ONCE() uses

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For several reasons it is preferable to use {READ,WRITE}_ONCE() rather than
ACCESS_ONCE(). For example, these handle aggregate types, result in shorter
source code, and better document the intended access (which may be useful for
instrumentation features such as the upcoming KTSAN).

Over a number of patches, most uses of ACCESS_ONCE() in arch/arm64 have been
migrated to {READ,WRITE}_ONCE(). For consistency, and the above reasons, this
patch migrates the final remaining uses.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Rutland 2016-11-04 18:17:06 +00:00 • committed by Catalin Marinas

parent 0c2f0afe35

commit 094339443e

1 changed files with 8 additions and 8 deletions

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arch/arm64/include/asm/percpu.h

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