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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-12 18:48:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-12 18:48:15 -0700 |
| commit | c29deef32e3699e40da3e9e82267610de04e6b54 (patch) | |
| tree | 820ab21fe399225f7341499e461ee793a180d414 /kernel/Kconfig.locks | |
| parent | f9da455b93f6ba076935b4ef4589f61e529ae046 (diff) | |
| parent | bd01ec1a13f9a327950c8e3080096446c7804753 (diff) | |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more locking changes from Ingo Molnar:
"This is the second round of locking tree updates for v3.16, offering
large system scalability improvements:
- optimistic spinning for rwsems, from Davidlohr Bueso.
- 'qrwlocks' core code and x86 enablement, from Waiman Long and PeterZ"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, locking/rwlocks: Enable qrwlocks on x86
locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks
locking/mutexes: Documentation update/rewrite
locking/rwsem: Fix checkpatch.pl warnings
locking/rwsem: Fix warnings for CONFIG_RWSEM_GENERIC_SPINLOCK
locking/rwsem: Support optimistic spinning
Diffstat (limited to 'kernel/Kconfig.locks')
| -rw-r--r-- | kernel/Kconfig.locks | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks index d2b32ac27a3..35536d9c096 100644 --- a/kernel/Kconfig.locks +++ b/kernel/Kconfig.locks @@ -223,3 +223,10 @@ endif config MUTEX_SPIN_ON_OWNER def_bool y depends on SMP && !DEBUG_MUTEXES + +config ARCH_USE_QUEUE_RWLOCK + bool + +config QUEUE_RWLOCK + def_bool y if ARCH_USE_QUEUE_RWLOCK + depends on SMP |