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* x86: Add xadd helper macroJeremy Fitzhardinge2011-08-29
| | | | | | | | Add a common xadd implementation. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Link: http://lkml.kernel.org/r/4E5BCC40.3030501@goop.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* x86, cmpxchg: Unify cmpxchg into cmpxchg.hJeremy Fitzhardinge2011-08-29
| | | | | | | | | | | | Everything that's actually common between 32 and 64-bit is moved into cmpxchg.h. xchg/cmpxchg will fail with a link error if they're passed an unsupported size (which includes 64-bit args on 32-bit systems). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Link: http://lkml.kernel.org/r/4E5BCC40.3030501@goop.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* x86, um: ... and asm-x86 moveAl Viro2008-10-23
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>