Re: [PATCH v10 1/2] arch/*: Add CONFIG_ARCH_HAVE_CMPXCHG64

2018-05-18 Thread Palmer Dabbelt
On Tue, 15 May 2018 15:51:20 PDT (-0700), bart.vanass...@wdc.com wrote: The next patch in this series introduces a call to cmpxchg64() in the block layer core for those architectures on which this functionality is available. Make it possible to test whether cmpxchg64() is available by introducing

Re: [PATCH v10 1/2] arch/*: Add CONFIG_ARCH_HAVE_CMPXCHG64

2018-05-15 Thread Michael Ellerman
Bart Van Assche writes: > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index c32a181a7cbb..901365d12dcd 100644 > --- a/arch/powerpc/Kconfig > +++ b/arch/powerpc/Kconfig > @@ -149,6 +149,7 @@ config PPC > select ARCH_HAS_UACCESS_FLUSHCACHE if PPC64 > select ARCH_HAS_

[PATCH v10 1/2] arch/*: Add CONFIG_ARCH_HAVE_CMPXCHG64

2018-05-15 Thread Bart Van Assche
The next patch in this series introduces a call to cmpxchg64() in the block layer core for those architectures on which this functionality is available. Make it possible to test whether cmpxchg64() is available by introducing CONFIG_ARCH_HAVE_CMPXCHG64. Signed-off-by: Bart Van Assche Cc: Catalin