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Mon, 13 Apr 2020 07:16:10 -0700 (PDT) From: Peter Xu To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: peterx@redhat.com, Andrew Morton , Andrea Arcangeli , Hillf Danton , Naresh Kamboju , kernel test robot Subject: [PATCH] mm/userfaultfd: Disable userfaultfd-wp on x86_32 Date: Mon, 13 Apr 2020 10:16:08 -0400 Message-Id: <20200413141608.109211-1-peterx@redhat.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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") Cc: Andrew Morton Cc: Andrea Arcangeli Cc: Hillf Danton Reported-by: Naresh Kamboju Reported-by: kernel test robot Tested-by: Naresh Kamboju Signed-off-by: Peter Xu --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8d078642b4be..7a7d2db366a3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -149,7 +149,7 @@ config X86 =09select HAVE_ARCH_TRACEHOOK =09select HAVE_ARCH_TRANSPARENT_HUGEPAGE =09select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD if X86_64 -=09select HAVE_ARCH_USERFAULTFD_WP=09=09if USERFAULTFD +=09select HAVE_ARCH_USERFAULTFD_WP if X86_64 && USERFAULTFD =09select HAVE_ARCH_VMAP_STACK=09=09if X86_64 =09select HAVE_ARCH_WITHIN_STACK_FRAMES =09select HAVE_ASM_MODVERSIONS --=20 2.24.1