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s390/cmpxchg: select HAVE_CMPXCHG_LOCAL option
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Tue, 29 May 2012 09:21:27 +0000 (11:21 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 30 May 2012 07:07:59 +0000 (09:07 +0200)
Now that hopefully all cmpxchg/xchg bugs have been fixed select
HAVE_CMPXCHG_LOCAL option which uncovered a couple of bugs on s390.

The only call site which is affected seems to be within mm/vmstat.c.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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