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authorWill Deacon <will.deacon@arm.com>2018-03-13 21:45:45 +0100
committerWill Deacon <will.deacon@arm.com>2018-07-05 11:05:06 +0200
commitc11090474d70590170cf5fa6afe85864ab494b37 (patch)
tree7bb33c5eee9bdcb1f8d84480b915a21db56eac14 /arch/arm64/include/asm/Kbuild
parentarm64: barrier: Implement smp_cond_load_relaxed (diff)
downloadlinux-c11090474d70590170cf5fa6afe85864ab494b37.tar.xz
linux-c11090474d70590170cf5fa6afe85864ab494b37.zip
arm64: locking: Replace ticket lock implementation with qspinlock
It's fair to say that our ticket lock has served us well over time, but it's time to bite the bullet and start using the generic qspinlock code so we can make use of explicit MCS queuing and potentially better PV performance in future. Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/Kbuild')
-rw-r--r--arch/arm64/include/asm/Kbuild1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 3a9b84d39d71..6cd5d77b6b44 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -16,6 +16,7 @@ generic-y += mm-arch-hooks.h
generic-y += msi.h
generic-y += preempt.h
generic-y += qrwlock.h
+generic-y += qspinlock.h
generic-y += rwsem.h
generic-y += segment.h
generic-y += serial.h