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| /openbmc/linux/arch/arm64/include/asm/ |
| H A D | spinlock.h | 9511ca19 Wed Jul 22 12:25:52 CDT 2015 Will Deacon <will.deacon@arm.com> arm64: rwlocks: don't fail trylock purely due to contention
STXR can fail for a number of reasons, so don't fail an rwlock trylock
operation simply because the STXR reported failure.
I'm not aware of any issues with the current code, but this makes it
consistent with spin_trylock and also other architectures (e.g. arch/arm).
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
9511ca19 Wed Jul 22 12:25:52 CDT 2015 Will Deacon <will.deacon@arm.com> arm64: rwlocks: don't fail trylock purely due to contention
STXR can fail for a number of reasons, so don't fail an rwlock trylock
operation simply because the STXR reported failure.
I'm not aware of any issues with the current code, but this makes it
consistent with spin_trylock and also other architectures (e.g. arch/arm).
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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