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(parent: a2604fb) | patch
arm64: rwsem: use asm-generic rwsem implementation
authorWill Deacon <will.deacon@arm.com>
Fri, 14 Mar 2014 17:47:05 +0000 (17:47 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 14 Mar 2014 18:02:09 +0000 (18:02 +0000)
commitb84799f49e9ad1ce78bc0c09de1a76a0634aaa1c
tree206ccdfb1d2afcaffc1e662fc6e487cd6a26a597tree | snapshot
parenta2604fb0b09a948a36f6bc63f46127f9db453fd6commit | diff
arm64: rwsem: use asm-generic rwsem implementation

asm-generic offers an atomic-add based rwsem implementation, which
can avoid the need for heavier, spinlock-based synchronisation on the
fast path.

This patch makes use of the optimised implementation for arm64 CPUs.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/Kconfig diff | blob | history
arch/arm64/include/asm/Kbuild diff | blob | history
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