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| author | Will Deacon <will.deacon@arm.com> | 2013-10-09 15:54:27 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-10-24 15:46:34 +0100 |
| commit | 5686b06cea34e31ec0a549d9b5ac00776e8e8d6d (patch) | |
| tree | 69f5fa9d9ccc89232bea8c1e1337a4217751ba3d /arch/arm64/include/asm/cmpxchg.h | |
| parent | 52ea2a560a9dba57fe5fd6b4726b1089751accf2 (diff) | |
| download | op-kernel-dev-5686b06cea34e31ec0a549d9b5ac00776e8e8d6d.zip op-kernel-dev-5686b06cea34e31ec0a549d9b5ac00776e8e8d6d.tar.gz | |
arm64: lockref: add support for lockless lockrefs using cmpxchg
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>
Diffstat (limited to 'arch/arm64/include/asm/cmpxchg.h')
0 files changed, 0 insertions, 0 deletions
