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2 Commits

Author SHA1 Message Date
Heiko Carstens 54eaae3028 [S390] cmpxchg: implement cmpxchg64() 
We have a cmpxchg64_local() implementation but strange enough the
SMP capable variant cmpxchg64() is missing. So implement it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2011-03-23 10:16:00 +01:00
Heiko Carstens a2c9dbe8db [S390] xchg/cmpxchg: move to own header file 
Move xchg() and cmpxchg() functions to own header file like some
other architectures have done.
With this we make sure that system.h now really looks like a place
where everything is gathered that doesn't fit anywhere else.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2011-03-23 10:15:59 +01:00