This is a note to let you know that I've just added the patch titled

userfaultfd: selftest: vm: allow to build in vm/ directory

to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: userfaultfd-selftest-vm-allow-to-build-in-vm-directory.patch and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Mon Dec 18 14:47:43 CET 2017

From: Andrea Arcangeli aarcange@redhat.com Date: Thu, 9 Mar 2017 16:17:14 -0800 Subject: userfaultfd: selftest: vm: allow to build in vm/ directory

From: Andrea Arcangeli aarcange@redhat.com

[ Upstream commit 46aa6a302b53f543f8e8b8e1714dc5e449ad36a6 ]

linux/tools/testing/selftests/vm $ make

gcc -Wall -I ../../../../usr/include compaction_test.c -lrt -o /compaction_test /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.4/../../../../x86_64-pc-linux-gnu/bin/ld: cannot open output file /compaction_test: Permission denied collect2: error: ld returned 1 exit status make: *** [../lib.mk:54: /compaction_test] Error 1

Since commit a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT") selftests/vm build fails if run from the "selftests/vm" directory, but it works in the selftests/ directory. It's quicker to be able to do a local vm-only build after a tree wipe and this patch allows for it again.

Link: http://lkml.kernel.org/r/20170302173738.18994-4-aarcange@redhat.com Signed-off-by: Andrea Arcangeli aarcange@redhat.com Cc: Mike Rapoport rppt@linux.vnet.ibm.com Cc: "Dr. David Alan Gilbert" dgilbert@redhat.com Cc: Mike Kravetz mike.kravetz@oracle.com Cc: Pavel Emelyanov xemul@parallels.com Cc: Hillf Danton hillf.zj@alibaba-inc.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/vm/Makefile | 4 ++++ 1 file changed, 4 insertions(+)

--- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -1,5 +1,9 @@ # Makefile for vm selftests

+ifndef OUTPUT + OUTPUT := $(shell pwd) +endif + CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS) BINARIES = compaction_test BINARIES += hugepage-mmap

Patches currently in stable-queue which might be from aarcange@redhat.com are

queue-4.4/userfaultfd-selftest-vm-allow-to-build-in-vm-directory.patch queue-4.4/userfaultfd-shmem-__do_fault-requires-vm_fault_nopage.patch