Skip to content

Commit

Permalink
um: disable CMPXCHG_DOUBLE as it breaks UML build
Browse files Browse the repository at this point in the history 
Commit b789ef5 ("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>
  • Loading branch information
Thadeu Lima de Souza Cascardo authored and Linus Torvalds committed Sep 15, 2011
1 parent 0d6617c commit e5f0bdc
Showing 1 changed file with 4 additions and 0 deletions.
4 changes: 4 additions & 0 deletions arch/um/Kconfig.x86
View file
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,10 @@ config CMPXCHG_LOCAL
bool
default n

config CMPXCHG_DOUBLE
bool
default n

source "arch/x86/Kconfig.cpu"

endmenu
Expand Down

0 comments on commit e5f0bdc

Please sign in to comment.