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3 Commits

Author SHA1 Message Date
Jeremy Fitzhardinge
433b352061 x86: Add xadd helper macro 
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>
 2011-08-29 13:42:20 -07:00
Jeremy Fitzhardinge
e9826380d8 x86, cmpxchg: Unify cmpxchg into cmpxchg.h 
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>
 2011-08-29 13:42:10 -07:00
Al Viro
bb8985586b x86, um: ... and asm-x86 move 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
 2008-10-22 22:55:20 -07:00