Merge remote-tracking branch 'lsk/v3.10/topic/gator' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index 2d9b83104dcf715197f1a84d34b892783ff79fe2..5d6febaea56d647d91fcd6b1f737be76ceb7a2a8 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1365,6 +1365,13 @@ config FUTEX
          support for "fast userspace mutexes".  The resulting kernel may not
          run glibc-based applications correctly.
 
+config HAVE_FUTEX_CMPXCHG
+       bool
+       help
+         Architectures should select this if futex_atomic_cmpxchg_inatomic()
+         is implemented and always working. This removes a couple of runtime
+         checks.
+
 config EPOLL
        bool "Enable eventpoll support" if EXPERT
        default y