24 Aug, 2018
1 commit
-
[ Upstream commit a4d7537789724985cafbc9260a31ca4f2b7cf123 ]
When vm test is skipped because of unmet dependencies and/or unsupported
configuration, it exits with error which is treated as a fail by the
Kselftest framework. This leads to false negative result even when the
test could not be run.Change it to return kselftest skip code when a test gets skipped to
clearly report that the test could not be run.Kselftest framework SKIP code is 4 and the framework prints appropriate
messages to indicate that the test is skipped.Signed-off-by: Shuah Khan (Samsung OSG)
Acked-by: Mike Rapoport
Signed-off-by: Shuah Khan (Samsung OSG)
Signed-off-by: Sasha Levin
Signed-off-by: Greg Kroah-Hartman
30 May, 2018
1 commit
-
[ Upstream commit 0627be7d3c871035364923559543c9b2ff5357f2 ]
Fix userfaultfd_hugetlb on hosts which have more than 64 cpus.
---------------------------
running userfaultfd_hugetlb
---------------------------
invalid MiB
Usage:
[FAIL]Via userfaultfd.c we can know, hugetlb_size needs to meet hugetlb_size
>= nr_cpus * hugepage_size. hugepage_size is often 2M, so when host
cpus > 64, it requires more than 128M.[zhijianx.li@intel.com: update changelog/comments and variable name]
Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com
Link: http://lkml.kernel.org/r/20180303125027.81638-1-zhijianx.li@intel.com
Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com
Signed-off-by: Li Zhijian
Cc: Shuah Khan
Cc: SeongJae Park
Cc: Philippe Ombredanne
Cc: Aneesh Kumar K.V
Cc: Mike Kravetz
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin
Signed-off-by: Greg Kroah-Hartman
22 Feb, 2018
1 commit
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commit 4c1baad223906943b595a887305f2e8124821dad upstream.
Running the compaction_test sometimes results in out-of-memory
failures. When I debugged this, it turned out that the code to
reset the number of hugepages to the initial value is simply
broken since we write into an open sysctl file descriptor
multiple times without seeking back to the start.Adding the lseek here fixes the problem.
Cc: stable@vger.kernel.org
Reported-by: Naresh Kamboju
Link: https://bugs.linaro.org/show_bug.cgi?id=3145
Signed-off-by: Arnd Bergmann
Signed-off-by: Shuah Khan
Signed-off-by: Greg Kroah-Hartman
02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
14 Oct, 2017
1 commit
-
I was stress testing some backports and with high load, after some time,
the latest version of the selftest showed some false positive in
connection with the uffdio_copy_retry. This seems to fix it while still
exercising -EEXIST in the background transfer once in a while.The fork child will quit after the last UFFDIO_COPY is run, so a
repeated UFFDIO_COPY may not return -EEXIST. This change restricts the
-EEXIST stress to the background transfer where the memory can't go away
from under it.Also updated uffdio_zeropage, so the interface is consistent.
Link: http://lkml.kernel.org/r/20171004171541.1495-2-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli
Cc: Pavel Emelyanov
Cc: Mike Rapoport
Cc: "Dr. David Alan Gilbert"
Cc: Mike Kravetz
Cc: Shuah Khan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Sep, 2017
4 commits
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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 -
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 -
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 -
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
08 Jun, 2017
1 commit
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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
09 May, 2017
2 commits
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…l/git/shuah/linux-kselftest
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"
... -
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
04 May, 2017
1 commit
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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
22 Apr, 2017
1 commit
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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
14 Apr, 2017
1 commit
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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
11 Apr, 2017
2 commits
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Man page of mmap() says that portable applications should ensure fd
argument to be -1 if MAP_ANONYMOUS flag is set as below:
```
The mapping is not backed by any file; its contents are initialized to
zero. The fd and offset arguments are ignored; however, some
implementations require fd to be -1 if MAP_ANONYMOUS (or
MAP_ANON) is specified, and portable applications
should ensure this.
```However, few mmap() calls under selftests/vm/ uses 0 as fd though they
use MAP_ANONYMOUS flag. This commit changes the argument to be -1 as
recommended.Signed-off-by: SeongJae Park
Acked-by: Andrew Morton
Signed-off-by: Shuah Khan -
vm tests rely on shared memory settings. Enable system V IPC to run these
tests.Signed-off-by: Fathi Boudra
Tested-by: Naresh Kamboju
Signed-off-by: Shuah Khan
10 Mar, 2017
1 commit
-
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 1Since 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
Cc: Mike Rapoport
Cc: "Dr. David Alan Gilbert"
Cc: Mike Kravetz
Cc: Pavel Emelyanov
Cc: Hillf Danton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Feb, 2017
1 commit
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…l/git/shuah/linux-kselftest
Pull Kselftest update from Shuah Khan:
"This update consists of:- fixes to several existing tests from Stafford Horne
- cpufreq tests from Viresh Kumar
- Selftest build and install fixes from Bamvor Jian Zhang and Michael
Ellerman- Fixes to protection-keys tests from Dave Hansen
- Warning fixes from Shuah Khan"
* tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (28 commits)
selftests/powerpc: Fix remaining fallout from recent changes
selftests/powerpc: Fix the clean rule since recent changes
selftests: Fix the .S and .S -> .o rules
selftests: Fix the .c linking rule
selftests: Fix selftests build to just build, not run tests
selftests, x86, protection_keys: fix wrong offset in siginfo
selftests, x86, protection_keys: fix uninitialized variable warning
selftest: cpufreq: Update MAINTAINERS file
selftest: cpufreq: Add special tests
selftest: cpufreq: Add support to test cpufreq modules
selftest: cpufreq: Add suspend/resume/hibernate support
selftest: cpufreq: Add support for cpufreq tests
selftests: Add intel_pstate to TARGETS
selftests/intel_pstate: Update makefile to match new style
selftests/intel_pstate: Fix warning on loop index overflow
cpupower: Restore format of frequency-info limit
selftests/futex: Add headers to makefile dependencies
selftests/futex: Add stdio used for logging
selftests: x86 protection_keys remove dead code
selftests: x86 protection_keys fix unused variable compile warnings
...
25 Feb, 2017
2 commits
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Now when madvise(MADV_REMOVE) notifies uffd reader, we should verify
that appliciation actually sees zeros at the removed range.Link: http://lkml.kernel.org/r/1484814154-1557-4-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport
Reviewed-by: Andrea Arcangeli
Cc: Hillf Danton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Patch series "userfaultfd: non-cooperative: add madvise() event for
MADV_REMOVE request".These patches add notification of madvise(MADV_REMOVE) event to
non-cooperative userfaultfd monitor.The first pacth renames EVENT_MADVDONTNEED to EVENT_REMOVE along with
relevant functions and structures. Using _REMOVE instead of
_MADVDONTNEED describes the event semantics more clearly and I hope it's
not too late for such change in the ABI.This patch (of 3):
The UFFD_EVENT_MADVDONTNEED purpose is to notify uffd monitor about
removal of certain range from address space tracked by userfaultfd.
Hence, UFFD_EVENT_REMOVE seems to better reflect the operation
semantics. Respectively, 'madv_dn' field of uffd_msg is renamed to
'remove' and the madvise_userfault_dontneed callback is renamed to
userfaultfd_remove.Link: http://lkml.kernel.org/r/1484814154-1557-2-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport
Reviewed-by: Andrea Arcangeli
Acked-by: Hillf Danton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Feb, 2017
7 commits
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This will verify -EINVAL is returned with hugetlbfs/shmem and it'll do a
functional test of UFFDIO_ZEROPAGE on anonymous memory.Link: http://lkml.kernel.org/r/20161216144821.5183-42-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Kravetz
Cc: Mike Rapoport
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add test for userfaultfd events used in non-cooperative scenario when
the process that monitors the userfaultfd and handles user faults is not
the same process that causes the page faults.Link: http://lkml.kernel.org/r/20161216144821.5183-41-aarcange@redhat.com
Signed-off-by: Mike Rapoport
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Kravetz
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
With future addition of event tests, copy_page will be called with
different userfault file descriptorsLink: http://lkml.kernel.org/r/20161216144821.5183-40-aarcange@redhat.com
Signed-off-by: Mike Rapoport
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Kravetz
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
userfaultfd_open will be needed by the non cooperative selftest.
Link: http://lkml.kernel.org/r/20161216144821.5183-39-aarcange@redhat.com
Signed-off-by: Mike Rapoport
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Kravetz
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The test verifies that anonymous shared mapping can be used with userfault
using the existing testing method. The shared memory area is allocated
using mmap(..., MAP_SHARED | MAP_ANONYMOUS, ...) and released using
madvise(MADV_REMOVE)Link: http://lkml.kernel.org/r/20161216144821.5183-35-aarcange@redhat.com
Signed-off-by: Mike Rapoport
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Kravetz
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Expand the userfaultfd_register/unregister routines to allow shared
memory VMAs.Currently, there is no UFFDIO_ZEROPAGE and write-protection support for
shared memory VMAs, which is reflected in ioctl methods supported by
uffdio_register.Link: http://lkml.kernel.org/r/20161216144821.5183-34-aarcange@redhat.com
Signed-off-by: Mike Rapoport
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Kravetz
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Test userfaultfd hugetlb functionality by using the existing testing
method (in userfaultfd.c). Instead of an anonymous memeory, a hugetlbfs
file is mmap'ed private. In this way fallocate hole punch can be used
to release pages. This is because madvise(MADV_DONTNEED) is not
supported for huge pages.Use the same file, but create wrappers for allocating ranges and
releasing pages. Compile userfaultfd.c with HUGETLB_TEST defined to
produce an executable to test userfaultfd hugetlb functionality.Link: http://lkml.kernel.org/r/20161216144821.5183-23-aarcange@redhat.com
Signed-off-by: Mike Kravetz
Signed-off-by: Andrea Arcangeli
Cc: "Dr. David Alan Gilbert"
Cc: Hillf Danton
Cc: Michael Rapoport
Cc: Mike Rapoport
Cc: Pavel Emelyanov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Jan, 2017
3 commits
-
Enable O and KBUILD_OUTPUT for kselftest. User could compile kselftest
to another directory by passing O or KBUILD_OUTPUT. And O is high
priority than KBUILD_OUTPUT.Signed-off-by: Bamvor Jian Zhang
Signed-off-by: Shuah Khan -
There are difference rules for compiling c source file in different
testcases. In order to enable KBUILD_OUTPUT support in later patch,
this patch introduce the default rules in
"tools/testing/selftest/lib.mk" and remove the existing rules in each
testcase.Acked-by: Michael Ellerman
Signed-off-by: Bamvor Jian Zhang
Signed-off-by: Shuah Khan -
Currently, kselftest use TEST_PROGS, TEST_PROGS_EXTENDED, TEST_FILES to
indicate the test program, extended test program and test files. It is
easy to understand the purpose of these files. But mix of compiled and
uncompiled files lead to duplicated "all" and "clean" targets.In order to remove the duplicated targets, introduce TEST_GEN_PROGS,
TEST_GEN_PROGS_EXTENDED, TEST_GEN_FILES to indicate the compiled
objects.Also, the later patch will make use of TEST_GEN_XXX to redirect these
files to output directory indicated by KBUILD_OUTPUT or O.And add this changes to "Contributing new tests(details)" of
Documentation/kselftest.txt.Signed-off-by: Bamvor Jian Zhang
Signed-off-by: Shuah Khan
08 Oct, 2016
4 commits
-
This patch will randomly perform mlock/mlock2 on a given memory region,
and verify the RLIMIT_MEMLOCK limitation works properly.Suggested-by: David Rientjes
Link: http://lkml.kernel.org/r/1473325970-11393-4-git-send-email-wei.guo.simon@gmail.com
Signed-off-by: Simon Guo
Cc: Shuah Khan
Cc: Vlastimil Babka
Cc: "Kirill A. Shutemov"
Cc: Michal Hocko
Cc: Eric B Munson
Cc: Simon Guo
Cc: Mel Gorman
Cc: Alexey Klimov
Cc: Andrea Arcangeli
Cc: Thierry Reding
Cc: Mike Kravetz
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Function seek_to_smaps_entry() can be useful for other selftest
functionalities, so move it out to header file.Link: http://lkml.kernel.org/r/1473325970-11393-3-git-send-email-wei.guo.simon@gmail.com
Signed-off-by: Simon Guo
Cc: Shuah Khan
Cc: Vlastimil Babka
Cc: "Kirill A. Shutemov"
Cc: Michal Hocko
Cc: Eric B Munson
Cc: Simon Guo
Cc: Mel Gorman
Cc: Alexey Klimov
Cc: Andrea Arcangeli
Cc: Thierry Reding
Cc: Mike Kravetz
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds mlock() test for multiple invocation on the same address
area, and verify it doesn't mess the rlimit mlock limitation.Link: http://lkml.kernel.org/r/1472554781-9835-5-git-send-email-wei.guo.simon@gmail.com
Signed-off-by: Simon Guo
Cc: Alexey Klimov
Cc: Eric B Munson
Cc: Geert Uytterhoeven
Cc: "Kirill A. Shutemov"
Cc: Mel Gorman
Cc: Michal Hocko
Cc: Shuah Khan
Cc: Simon Guo
Cc: Thierry Reding
Cc: Vlastimil Babka
Cc: David Rientjes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
To prepare mlock2.h whose functionality will be reused.
Link: http://lkml.kernel.org/r/1472554781-9835-4-git-send-email-wei.guo.simon@gmail.com
Signed-off-by: Simon Guo
Cc: Alexey Klimov
Cc: Eric B Munson
Cc: Geert Uytterhoeven
Cc: "Kirill A. Shutemov"
Cc: Mel Gorman
Cc: Michal Hocko
Cc: Shuah Khan
Cc: Simon Guo
Cc: Thierry Reding
Cc: Vlastimil Babka
Cc: David Rientjes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Jun, 2016
2 commits
-
The default MEMLOCK limit is not big enough to accomodate all the
current pages of the test program process, so the test fails
at this step.
By removing the MCL_CURRENT flag, we allow the mlockall
call to succeed. The mmap is twice the size of the current limit,
so it will still fail as expected.Signed-off-by: Yannick Brosseau
Signed-off-by: Shuah Khan -
When setting back the initial value to nr_hugepages, the
test was writing a length sizeof of the string and checking
that strlen was writen. Since those values are not the same,
use strlen in both place instead.Also make the error messages more explicit to help in future
debugging.Signed-off-by: Yannick Brosseau
Signed-off-by: Shuah Khan
23 May, 2016
1 commit
-
Do not hardcode MAP_HUGETLB to 0x40000, since quite some architectures
use a different value.Tested with a parisc architecture 64bit kernel.
Signed-off-by: Helge Deller
26 Feb, 2016
1 commit
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Create the config file in each directory of testcase which need
more kernel configuration than the default defconfig. User could
use these configs with merge_config.sh script:Enable config for specific testcase:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
tools/testing/selftests/xxx/configEnable configs for all testcases:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
tools/testing/selftests/*/configSigned-off-by: Bamvor Jian Zhang
Reviewed-by: Shuah Khan
Signed-off-by: Shuah Khan
08 Jan, 2016
1 commit
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Signed-off-by: Yuan Sun
Signed-off-by: Shuah Khan
