linux-stable.git/tools/testing/selftests/vm/Makefile, branch v5.7

selftests: vm: Fix 64-bit test builds for powerpc64le

2020-04-13T15:33:46+00:00

Some tests are built only for 64-bit systems. This makes
sure that these tests are built for both big and little
endian variants of powerpc64.

Fixes: 7549b3364201 ("selftests: vm: Build/Run 64bit tests only on 64bit arch")
Reviewed-by: Kamalesh Babulal 
Signed-off-by: Sandipan Das 
Tested-by: Michael Ellerman 
Signed-off-by: Shuah Khan

selftests: vm: Do not override definition of ARCH

2020-04-13T15:33:46+00:00

Independent builds of the vm selftests is currently broken because
commit 7549b3364201 ("selftests: vm: Build/Run 64bit tests only on
64bit arch") overrides the value of ARCH with the machine name from
uname. This does not always match the architecture names used for
tasks like header installation.

E.g. for building tests on powerpc64, we need ARCH=powerpc
and not ARCH=ppc64 or ARCH=ppc64le. Otherwise, the build
fails as shown below.

  $ uname -m
  ppc64le

  $ make -C tools/testing/selftests/vm
  make: Entering directory '/home/sandipan/linux/tools/testing/selftests/vm'
  make --no-builtin-rules ARCH=ppc64le -C ../../../.. headers_install
  make[1]: Entering directory '/home/sandipan/linux'
  Makefile:653: arch/ppc64le/Makefile: No such file or directory
  make[1]: *** No rule to make target 'arch/ppc64le/Makefile'.  Stop.
  make[1]: Leaving directory '/home/sandipan/linux'
  ../lib.mk:50: recipe for target 'khdr' failed
  make: *** [khdr] Error 2
  make: Leaving directory '/home/sandipan/linux/tools/testing/selftests/vm'

Fixes: 7549b3364201 ("selftests: vm: Build/Run 64bit tests only on 64bit arch")
Signed-off-by: Sandipan Das 
Tested-by: Michael Ellerman 
Signed-off-by: Shuah Khan

hugetlb_cgroup: add hugetlb_cgroup reservation tests

2020-04-02T16:35:32+00:00

The tests use both shared and private mapped hugetlb memory, and monitors
the hugetlb usage counter as well as the hugetlb reservation counter.
They test different configurations such as hugetlb memory usage via
hugetlbfs, or MAP_HUGETLB, or shmget/shmat, and with and without
MAP_POPULATE.

Also add test for hugetlb reservation reparenting, since this is a subtle
issue.

Signed-off-by: Mina Almasry 
Signed-off-by: Andrew Morton 
Tested-by: Sandipan Das 	[powerpc64]
Acked-by: Mike Kravetz 
Cc: Sandipan Das 
Cc: David Rientjes 
Cc: Greg Thelen 
Cc: Shakeel Butt 
Cc: Shuah Khan 
Link: http://lkml.kernel.org/r/20200211213128.73302-8-almasrymina@google.com
Signed-off-by: Linus Torvalds

selftests: add MREMAP_DONTUNMAP selftest

2020-04-02T16:35:30+00:00

Add a few simple self tests for the new flag MREMAP_DONTUNMAP, they are
simple smoke tests which also demonstrate the behavior.

[akpm@linux-foundation.org: convert eight-spaces to hard tabs]
[bgeffon@google.com: v7]
  Link: http://lkml.kernel.org/r/20200221174248.244748-2-bgeffon@google.com
[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: Brian Geffon 
Signed-off-by: Andrew Morton 
Cc: Vlastimil Babka 
Cc: "Michael S . Tsirkin" 
Cc: Brian Geffon 
Cc: Arnd Bergmann 
Cc: Andy Lutomirski 
Cc: Will Deacon 
Cc: Andrea Arcangeli 
Cc: Sonny Rao 
Cc: Minchan Kim 
Cc: Joel Fernandes 
Cc: Yu Zhao 
Cc: Jesse Barnes 
Cc: Nathan Chancellor 
Cc: Florian Weimer 
Cc: "Kirill A . Shutemov" 
Cc: Lokesh Gidra 
Link: http://lkml.kernel.org/r/20200218173221.237674-2-bgeffon@google.com
Signed-off-by: Linus Torvalds

selftests: vm: Build/Run 64bit tests only on 64bit arch

2019-11-07T21:53:29+00:00

Some virtual address range tests requires 64bit address space,
and we can not build and run those tests on the 32bit machine.

Filter the 64bit architectures in Makefile and run_vmtests,
so that those tests are built/run only on 64bit archs.

Signed-off-by: Masami Hiramatsu 
Cc: Anshuman Khandual 
Cc: Aneesh Kumar K.V 
Signed-off-by: Shuah Khan

selftests: vm: Fix test build failure when built by itself

2019-06-05T22:05:40+00:00

vm test build fails when test is built by itself using

make -C tools/testing/selftests/vm
or
cd tools/testing/selftests/vm; make

When the test is built invoking its Makefile directly, it defines
OUTPUT which conflicts with lib.mk's logic to install headers.

make --no-builtin-rules INSTALL_HDR_PATH=$OUTPUT/usr \
        ARCH=x86 -C ../../../.. headers_install
make[1]: Entering directory '/mnt/data/lkml/linux_5.2'
  REMOVE  shmparam.h
rm: cannot remove '/usr/include/asm-generic/shmparam.h': Permission denied
scripts/Makefile.headersinst:96: recipe for target '/usr/include/asm-generic/.install' failed
make[3]: *** [/usr/include/asm-generic/.install] Error 1
scripts/Makefile.headersinst:32: recipe for target 'asm-generic' failed
make[2]: *** [asm-generic] Error 2
Makefile:1199: recipe for target 'headers_install' failed
make[1]: *** [headers_install] Error 2
make[1]: Leaving directory '/mnt/data/lkml/linux_5.2'
../lib.mk:52: recipe for target 'khdr' failed
make: *** [khdr] Error 2

Fixes: 8ce72dc32578 ("selftests: fix headers_install circular dependency")
Signed-off-by: Shuah Khan

selftests: vm: install test_vmalloc.sh for run_vmtests

2019-05-30T14:32:57+00:00

Add test_vmalloc.sh to TEST_FILES to make sure it gets installed for
run_vmtests.

Fixed below error:
./run_vmtests: line 217: ./test_vmalloc.sh: No such file or directory

Tested with: make TARGETS=vm install INSTALL_PATH=$PWD/x

Signed-off-by: Naresh Kamboju 
Signed-off-by: Shuah Khan

selftests: Fix test errors related to lib.mk khdr target

2018-12-13T23:51:30+00:00

Commit b2d35fa5fc80 ("selftests: add headers_install to lib.mk") added
khdr target to run headers_install target from the main Makefile. The
logic uses KSFT_KHDR_INSTALL and top_srcdir as controls to initialize
variables and include files to run headers_install from the top level
Makefile. There are a few problems with this logic.

1. Exposes top_srcdir to all tests
2. Common logic impacts all tests
3. Uses KSFT_KHDR_INSTALL, top_srcdir, and khdr in an adhoc way. Tests
   add "khdr" dependency in their Makefiles to TEST_PROGS_EXTENDED in
   some cases, and STATIC_LIBS in other cases. This makes this framework
   confusing to use.

The common logic that runs for all tests even when KSFT_KHDR_INSTALL
isn't defined by the test. top_srcdir is initialized to a default value
when test doesn't initialize it. It works for all tests without a sub-dir
structure and tests with sub-dir structure fail to build.

e.g: make -C sparc64/drivers/ or make -C drivers/dma-buf

../../lib.mk:20: ../../../../scripts/subarch.include: No such file or directory
make: *** No rule to make target '../../../../scripts/subarch.include'.  Stop.

There is no reason to require all tests to define top_srcdir and there is
no need to require tests to add khdr dependency using adhoc changes to
TEST_* and other variables.

Fix it with a consistent use of KSFT_KHDR_INSTALL and top_srcdir from tests
that have the dependency on headers_install.

Change common logic to include khdr target define and "all" target with
dependency on khdr when KSFT_KHDR_INSTALL is defined.

Only tests that have dependency on headers_install have to define just
the KSFT_KHDR_INSTALL, and top_srcdir variables and there is no need to
specify khdr dependency in the test Makefiles.

Fixes: b2d35fa5fc80 ("selftests: add headers_install to lib.mk")
Cc: stable@vger.kernel.org
Signed-off-by: Shuah Khan

tools/testing/selftests/vm/map_fixed_noreplace.c: add test for MAP_FIXED_NOREPLACE

2018-10-26T23:38:15+00:00

Add a test for MAP_FIXED_NOREPLACE, based on some code originally by Jann
Horn.  This would have caught the overlap bug reported by Daniel Micay.

I originally suggested to Michal that we create MAP_FIXED_NOREPLACE, but
instead of writing a selftest I spent my time bike-shedding whether it
should be called MAP_FIXED_SAFE/NOCLOBBER/WEAK/NEW ..  mea culpa.

Link: http://lkml.kernel.org/r/20181013133929.28653-1-mpe@ellerman.id.au
Signed-off-by: Michael Ellerman 
Reviewed-by: Kees Cook 
Reviewed-by: Khalid Aziz 
Acked-by: Michal Hocko 
Cc: Jann Horn 
Cc: Andrea Arcangeli 
Cc: Florian Weimer 
Cc: John Hubbard 
Cc: Matthew Wilcox 
Cc: Abdul Haleem 
Cc: Joel Stanley 
Cc: Jason Evans 
Cc: David Goldblatt 
Cc: Daniel Micay 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

selftests: add headers_install to lib.mk

2018-09-05T14:12:09+00:00

If the kernel headers aren't installed we can't build all the tests.
Add a new make target rule 'khdr' in the file lib.mk to generate the
kernel headers and that gets include for every test-dir Makefile that
includes lib.mk If the testdir in turn have its own sub-dirs the
top_srcdir needs to be set to the linux-rootdir to be able to generate
the kernel headers.

Signed-off-by: Anders Roxell 
Reviewed-by: Fathi Boudra 
Signed-off-by: Shuah Khan (Samsung OSG)