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| author | Will Deacon | 2018-03-13 22:17:01 +0100 |
|---|---|---|
| committer | Will Deacon | 2018-07-05 11:05:06 +0200 |
| commit | 5d168964aece0b4a41269839c613683c5d7e0fb2 (patch) | |
| tree | e8e9fd92f1422e314c1fc13241c7f6ce646e2a8a /arch/arm64/Kconfig | |
| parent | arm64: locking: Replace ticket lock implementation with qspinlock (diff) | |
| download | kernel-qcow2-linux-5d168964aece0b4a41269839c613683c5d7e0fb2.tar.gz kernel-qcow2-linux-5d168964aece0b4a41269839c613683c5d7e0fb2.tar.xz kernel-qcow2-linux-5d168964aece0b4a41269839c613683c5d7e0fb2.zip | |
arm64: kconfig: Ensure spinlock fastpaths are inlined if !PREEMPT
When running with CONFIG_PREEMPT=n, the spinlock fastpaths fit inside
64 bytes, which typically coincides with the L1 I-cache line size.
Inline the spinlock fastpaths, like we do already for rwlocks.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index facd19625563..476de9b1d239 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -42,6 +42,16 @@ config ARM64 select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPT select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPT select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPT + select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPT + select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPT + select ARCH_INLINE_SPIN_LOCK if !PREEMPT + select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPT + select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPT + select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPT + select ARCH_INLINE_SPIN_UNLOCK if !PREEMPT + select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPT + select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPT + select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPT select ARCH_USE_CMPXCHG_LOCKREF select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS |