Qiaowei Ren f09174c501 x86: add user_atomic_cmpxchg_inatomic at uaccess.h ... This patch adds user_atomic_cmpxchg_inatomic() to use CMPXCHG instruction against a user space address. This generalizes the already existing futex_atomic_cmpxchg_inatomic() so it can be used in other contexts. This will be used in the upcoming support for Intel MPX (Memory Protection Extensions.) [ hpa: replaced #ifdef inside a macro with IS_ENABLED() ] Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com> Link: http://lkml.kernel.org/r/1387002303-6620-1-git-send-email-qiaowei.ren@intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>		2013-12-16 09:07:57 -08:00
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asm	x86: add user_atomic_cmpxchg_inatomic at uaccess.h	2013-12-16 09:07:57 -08:00
uapi/asm	More ACPI and power management updates for 3.13-rc1	2013-11-20 13:25:04 -08:00