aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorThadeu Lima de Souza Cascardo <cascardo@holoscopio.com>2011-09-14 16:21:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-09-14 18:09:37 -0700
commite5f0bdc7840bdb791247cb98dfc1dab6ea6c7da4 (patch)
treee818977d221bdb93b8bb6098310f25e99877736a
parentnuma: fix NUMA compile error when sysfs and procfs are disabled (diff)
downloadlinux-dev-e5f0bdc7840bdb791247cb98dfc1dab6ea6c7da4.tar.xz
linux-dev-e5f0bdc7840bdb791247cb98dfc1dab6ea6c7da4.zip
um: disable CMPXCHG_DOUBLE as it breaks UML build
Commit b789ef518b2 ("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>
Diffstat (limited to '')
-rw-r--r--arch/um/Kconfig.x864
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/um/Kconfig.x86 b/arch/um/Kconfig.x86
index d31ecf346b4e..21bebe63df66 100644
--- a/arch/um/Kconfig.x86
+++ b/arch/um/Kconfig.x86
@@ -10,6 +10,10 @@ config CMPXCHG_LOCAL
bool
default n
+config CMPXCHG_DOUBLE
+ bool
+ default n
+
source "arch/x86/Kconfig.cpu"
endmenu