user/sven/linux.git/tools/testing/selftests/vm, branch v4.5.2

update .gitignore in selftests/vm

2016-01-07T20:37:41Z

Signed-off-by: Yuan Sun Signed-off-by: Shuah Khan

Merge branch 'akpm' (patches from Andrew)

2015-11-11T05:14:23Z

Merge final patch-bomb from Andrew Morton: "Various leftovers, mainly Christoph's pci_dma_supported() removals" * emailed patches from Andrew Morton : pci: remove pci_dma_supported usbnet: remove ifdefed out call to dma_supported kaweth: remove ifdefed out call to dma_supported sfc: don't call dma_supported nouveau: don't call pci_dma_supported netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported cx23885: use pci_set_dma_mask insted of pci_dma_supported cx25821: use pci_set_dma_mask insted of pci_dma_supported cx88: use pci_set_dma_mask insted of pci_dma_supported saa7134: use pci_set_dma_mask insted of pci_dma_supported saa7164: use pci_set_dma_mask insted of pci_dma_supported tw68-core: use pci_set_dma_mask insted of pci_dma_supported pcnet32: use pci_set_dma_mask insted of pci_dma_supported lib/string.c: add ULL suffix to the constant definition hugetlb: trivial comment fix selftests/mlock2: add ULL suffix to 64-bit constants selftests/mlock2: add missing #define _GNU_SOURCE

Merge tag 'linux-kselftest-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2015-11-11T04:46:45Z

Pull kselftest updates from Shuah Khan: "This 12 patch update for 4.4-rc1 consists of a new pstore test and fixes to existing tests" * tag 'linux-kselftest-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: breakpoint: Actually build it selftests: vm: Try harder to allocate huge pages selftests: Make scripts executable selftests: kprobe: Choose an always-defined function to probe selftests: memfd: Stop unnecessary rebuilds selftests: Add missing #include directives selftests/seccomp: Be more precise with syscall arguments. selftests/seccomp: build and pass on arm64 selftests: memfd_test: Revised STACK_SIZE to make it 16-byte aligned selftests/pstore: add pstore test scripts going with reboot selftests/pstore: add pstore test script for pre-reboot selftests: add .gitignore for efivarfs

selftests/mlock2: add ULL suffix to 64-bit constants

2015-11-11T00:32:11Z

On 32-bit (e.g. m68k): mlock2-tests.c: In function 'lock_check': mlock2-tests.c:293: warning: integer constant is too large for 'long' type mlock2-tests.c:294: warning: integer constant is too large for 'long' type mlock2-tests.c:299: warning: integer constant is too large for 'long' type ... Signed-off-by: Geert Uytterhoeven Acked-by: Eric B Munson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

selftests/mlock2: add missing #define _GNU_SOURCE

2015-11-11T00:32:11Z

On glibc 2.3.6: mlock2-tests.c: In function 'seek_to_smaps_entry': mlock2-tests.c:158: warning: implicit declaration of function 'getline' According to the manpage of getline(), it needs _GNU_SOURCE before glibc 2.10. Signed-off-by: Geert Uytterhoeven Acked-by: Eric B Munson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

selftests: vm: add tests for lock on fault

2015-11-06T03:34:48Z

Test the mmap() flag, and the mlockall() flag. These tests ensure that pages are not faulted in until they are accessed, that the pages are unevictable once faulted in, and that VMA splitting and merging works with the new VM flag. The second test ensures that mlock limits are respected. Note that the limit test needs to be run a normal user. Also add tests to use the new mlock2 family of system calls. [treding@nvidia.com: : Fix mlock2-tests for 32-bit architectures] [treding@nvidia.com: ensure the mlock2 syscall number can be found] [treding@nvidia.com: use the right arguments for main()] Signed-off-by: Eric B Munson Cc: Shuah Khan Cc: Michal Hocko Cc: Vlastimil Babka Cc: Jonathan Corbet Cc: Catalin Marinas Cc: Geert Uytterhoeven Cc: Guenter Roeck Cc: Heiko Carstens Cc: Kirill A. Shutemov Cc: Michael Kerrisk Cc: Ralf Baechle Cc: Stephen Rothwell Signed-off-by: Thierry Reding Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

selftests: vm: Try harder to allocate huge pages

2015-11-03T23:55:02Z

If we need to increase the number of huge pages, drop caches first to reduce fragmentation and then check that we actually allocated as many as we wanted. Retry once if that doesn't work. Signed-off-by: Ben Hutchings Signed-off-by: Shuah Khan

userfaultfd: selftest: don't error out if pthread_mutex_t isn't identical

2015-09-22T22:09:53Z

On ppc big endian this check fails, the mutex doesn't necessarily need to be identical for all pages after pthread_mutex_lock/unlock cycles. The count verification (outside of the pthread_mutex_t structure) suffices and that is retained. Signed-off-by: Andrea Arcangeli Cc: Dr. David Alan Gilbert Cc: Michael Ellerman Cc: Shuah Khan Cc: Thierry Reding Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

userfaultfd: selftest: return an error if BOUNCE_VERIFY fails

2015-09-22T22:09:53Z

This will report the error in the exit code, in addition of the fprintf. Signed-off-by: Andrea Arcangeli Cc: Dr. David Alan Gilbert Cc: Michael Ellerman Cc: Shuah Khan Cc: Thierry Reding Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

userfaultfd: selftest: avoid my_bcmp false positives with powerpc

2015-09-22T22:09:53Z

Keep a non-zero placeholder after the count, for the my_bcmp comparison of the page against the zeropage. The lockless increment between 255 to 256 against a lockless my_bcmp could otherwise return false positives on ppc32le. Signed-off-by: Andrea Arcangeli Tested-by: Michael Ellerman Cc: Dr. David Alan Gilbert Cc: Shuah Khan Cc: Thierry Reding Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds