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um: disable CMPXCHG_DOUBLE as it breaks UML build 

Commit b789ef518b ("slub: Add cmpxchg_double_slab()") tests for
cmpxchg_double support in the SLUB code and it breaks UML builds with
SLUB.  Since UML does not support checking for CPU features, disable
CMPXCHG_DOUBLE just like CMPXCHG_LOCAL is disabled for UML.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Thadeu Lima de Souza Cascardo 2011-09-14 16:21:08 -07:00 committed by Linus Torvalds
parent 0d6617c773
commit e5f0bdc784
1 changed files with 4 additions and 0 deletions
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4
arch/um/Kconfig.x86
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@ -10,6 +10,10 @@ config CMPXCHG_LOCAL
bool
default n
config CMPXCHG_DOUBLE
bool
default n
source "arch/x86/Kconfig.cpu"
endmenu