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5686b06cea
Our spinlocks are only 32-bit (2x16-bit tickets) and our cmpxchg can deal with 8-bytes (as one would hope!). This patch wires up the cmpxchg-based lockless lockref implementation for arm64. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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uapi/asm |