The patch titled
um: disable CMPXCHG_DOUBLE as it breaks UML build
has been added to the -mm tree. Its filename is
um-disable-cmpxchg_double-as-it-breaks-uml-build.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: um: disable CMPXCHG_DOUBLE as it breaks UML build
From: Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Reviewed-by: Christoph Lameter <cl@xxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/um/Kconfig.x86 | 4 ++++
1 file changed, 4 insertions(+)
diff -puN arch/um/Kconfig.x86~um-disable-cmpxchg_double-as-it-breaks-uml-build arch/um/Kconfig.x86
--- a/arch/um/Kconfig.x86~um-disable-cmpxchg_double-as-it-breaks-uml-build
+++ a/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
_
Patches currently in -mm which might be from cascardo@xxxxxxxxxxxxxx are
um-disable-cmpxchg_double-as-it-breaks-uml-build.patch
lis3lv02d-avoid-divide-by-zero-due-to-unchecked.patch
lis3-update-maintainer-information.patch
lis3-add-support-for-hp-elitebook-2730p.patch
lis3-add-support-for-hp-elitebook-8540w.patch
hp_accel-add-hp-probook-655x.patch
config_hp_accel-fix-help-text.patch
lis3-free-regulators-if-probe-fails.patch
lis3-change-naming-to-consistent.patch
lis3-change-exported-function-to-use-given.patch
lis3-remove-the-references-to-the-global-variable-in-core-driver.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
