summaryrefslogtreecommitdiffstats
path: root/arch/x86
diff options
context:
space:
mode:
authorPeter Xu <peterx@redhat.com>2020-04-21 03:13:45 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-21 20:11:55 +0200
commitb64d8d1e1ba5ba041e4407056a723c25a7052c49 (patch)
tree3096520959101dd8ff40939c8895e8d67492dc4d /arch/x86
parentslub: avoid redzone when choosing freepointer location (diff)
downloadlinux-b64d8d1e1ba5ba041e4407056a723c25a7052c49.tar.xz
linux-b64d8d1e1ba5ba041e4407056a723c25a7052c49.zip
mm/userfaultfd: disable userfaultfd-wp on x86_32
Userfaultfd-wp is not yet working on 32bit hosts, but it's accidentally enabled previously. Disable it. Fixes: 5a281062af1d ("userfaultfd: wp: add WP pagetable tracking to x86") Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Hillf Danton <hdanton@sina.com> Link: http://lkml.kernel.org/r/20200413141608.109211-1-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d6104ea8af0..1197b5596d5a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -149,7 +149,7 @@ config X86
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD if X86_64
- select HAVE_ARCH_USERFAULTFD_WP if USERFAULTFD
+ select HAVE_ARCH_USERFAULTFD_WP if X86_64 && USERFAULTFD
select HAVE_ARCH_VMAP_STACK if X86_64
select HAVE_ARCH_WITHIN_STACK_FRAMES
select HAVE_ASM_MODVERSIONS