linux.git/tools/testing/selftests/vm, branch v4.14-rc2

userfaultfd: selftest: explicit failure if the SIGBUS test failed

2017-09-07T00:27:29+00:00

Showing zero in the output isn't very self explanatory as a successful
result.  Show a more explicit error output if the test fails.

Link: http://lkml.kernel.org/r/20170802165145.22628-4-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli 
Cc: "Dr. David Alan Gilbert" 
Cc: Alexey Perevalov 
Cc: Maxime Coquelin 
Cc: Mike Kravetz 
Cc: Mike Rapoport 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

userfaultfd: selftest: exercise UFFDIO_COPY/ZEROPAGE -EEXIST

2017-09-07T00:27:29+00:00

This will retry the UFFDIO_COPY/ZEROPAGE to verify it returns -EEXIST at
the first invocation and then later every 10 seconds.

In the filebacked MAP_SHARED case this also verifies the -EEXIST
triggered in the filesystem pagecache insertion, if the offset in the
file was not a hole.

shmem MAP_SHARED tries to index the newly allocated pagecache in the
radix tree before checking the pagetable so it doesn't need any
assistance to exercise that case.

hugetlbfs checks the pmd to be not none before trying to index the
hugetlbfs page in the radix tree, so it requires to run UFFDIO_COPY into
an alias mapping (the alternative would be to use MADV_DONTNEED to only
zap the pagetables, but that doesn't work on hugetlbfs).

[akpm@linux-foundation.org: fix uffdio_zeropage(), per Mike Kravetz]
Link: http://lkml.kernel.org/r/20170802165145.22628-3-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli 
Cc: "Dr. David Alan Gilbert" 
Cc: Alexey Perevalov 
Cc: Maxime Coquelin 
Cc: Mike Kravetz 
Cc: Mike Rapoport 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

userfaultfd: selftest: add tests for UFFD_FEATURE_SIGBUS feature

2017-09-07T00:27:29+00:00

Add tests for UFFD_FEATURE_SIGBUS feature.  The tests will verify signal
delivery instead of userfault events.  Also, test use of UFFDIO_COPY to
allocate memory and retry accessing monitored area after signal
delivery.

Also fix a bug in uffd_poll_thread() where 'uffd' is leaked.

Link: http://lkml.kernel.org/r/1501552446-748335-3-git-send-email-prakash.sangappa@oracle.com
Signed-off-by: Prakash Sangappa 
Cc: Shuah Khan 
Cc: Andrea Arcangeli 
Cc: Mike Kravetz 
Cc: Mike Rapoport 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

userfaultfd: selftest: enable testing of UFFDIO_ZEROPAGE for shmem

2017-09-07T00:27:28+00:00

Link: http://lkml.kernel.org/r/1497939652-16528-8-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport 
Cc: "Kirill A. Shutemov" 
Cc: Andrea Arcangeli 
Cc: Hillf Danton 
Cc: Hugh Dickins 
Cc: Pavel Emelyanov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

selftests/vm: Fix test for virtual address range mapping for arm64

2017-06-07T16:07:21+00:00

Arm64 has 256TB address space so fix the test to pass on Arm as well.

Also remove unneeded numaif header.

Signed-off-by: Michal Suchanek 
Signed-off-by: Shuah Khan

Merge tag 'linux-kselftest-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2017-05-09T03:43:30+00:00

Pull kselftest updates from Shuah Khan:
 "This update consists of:

   - important fixes for build failures and clean target related
     warnings to address regressions introduced in commit 88baa78d1f31
     ("selftests: remove duplicated all and clean target")

   - several minor spelling fixes in and log messages and comment
     blocks.

   - Enabling configs for better test coverage in ftrace, vm, and
     cpufreq tests.

   - .gitignore changes"

* tag 'linux-kselftest-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (26 commits)
  selftests: x86: add missing executables to .gitignore
  selftests: watchdog: accept multiple params on command line
  selftests: create cpufreq kconfig fragments
  selftests: x86: override clean in lib.mk to fix warnings
  selftests: sync: override clean in lib.mk to fix warnings
  selftests: splice: override clean in lib.mk to fix warnings
  selftests: gpio: fix clean target to remove all generated files and dirs
  selftests: add gpio generated files to .gitignore
  selftests: powerpc: override clean in lib.mk to fix warnings
  selftests: gpio: override clean in lib.mk to fix warnings
  selftests: futex: override clean in lib.mk to fix warnings
  selftests: lib.mk: define CLEAN macro to allow Makefiles to override clean
  selftests: splice: fix clean target to not remove default_file_splice_read.sh
  selftests: gpio: add config fragment for gpio-mockup
  selftests: breakpoints: allow to cross-compile for aarch64/arm64
  selftests/Makefile: Add missed PHONY targets
  selftests/vm/run_vmtests: Fix wrong comment
  selftests/Makefile: Add missed closing `"` in comment
  selftests/vm/run_vmtests: Polish output text
  selftests/timers: fix spelling mistake: "Asynchronous"
  ...

selftests/vm: add a test for virtual address range mapping

2017-05-09T00:15:16+00:00

This verifies virtual address mapping below and above the 128TB range
and makes sure that address returned are within the expected range
depending upon the hint passed from the user space.

Link: http://lkml.kernel.org/r/20170418095252.20533-1-khandual@linux.vnet.ibm.com
Signed-off-by: Anshuman Khandual 
Cc: Michal Suchanek 
Cc: Aneesh Kumar K.V 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

userfaultfd: selftest: combine all cases into a single executable

2017-05-03T22:52:10+00:00

Currently, selftest for userfaultfd is compiled three times: for
anonymous, shared and hugetlb memory.  Let's combine all the cases into
a single executable which will have a command line option for selection
of the test type.

Link: http://lkml.kernel.org/r/1490869741-5913-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport 
Reviewed-by: Mike Kravetz 
Cc: Andrea Arcangeli 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

selftests/vm/run_vmtests: Fix wrong comment

2017-04-21T17:22:32+00:00

A comment in `run_vmtests` is wrong because it is saying `128MB + 128MB
== 258MB`.  This commit fixes the comment.

Signed-off-by: SeongJae Park 
Signed-off-by: Shuah Khan

selftests/vm/run_vmtests: Polish output text

2017-04-13T22:08:38+00:00

Few currently running test notification messages from run_vmtests output
have mismatched highlight lines.  This commit fixes them to fit in
length.

Signed-off-by: SeongJae Park 
Signed-off-by: Shuah Khan