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* scripts/spelling.txt: add "an one" pattern and fix typo instancesMasahiro Yamada2017-02-271-1/+1
| | | | | | | | | | | | | | Fix typos and add the following to the scripts/spelling.txt: an one||a one I dropped the "an" before "one or more" in drivers/net/ethernet/sfc/mcdi_pcol.h. Link: http://lkml.kernel.org/r/1481573103-11329-6-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts/spelling.txt: add "an union" pattern and fix typo instancesMasahiro Yamada2017-02-272-3/+3
| | | | | | | | | | | Fix typos and add the following to the scripts/spelling.txt: an union||a union Link: http://lkml.kernel.org/r/1481573103-11329-5-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts/spelling.txt: add "an user" pattern and fix typo instancesMasahiro Yamada2017-02-271-1/+1
| | | | | | | | | | | | | | | | | Fix typos and add the following to the scripts/spelling.txt: an user||a user an userspace||a userspace I also added "userspace" to the list since it is a common word in Linux. I found some instances for "an userfaultfd", but I did not add it to the list. I felt it is endless to find words that start with "user" such as "userland" etc., so must draw a line somewhere. Link: http://lkml.kernel.org/r/1481573103-11329-4-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tools/testing/selftests/sigaltstack/sas.c: improve output of sigaltstack ↵Stas Sergeev2017-02-271-3/+4
| | | | | | | | | | | | | | | | testcase Currently it uses %i for bitmasks, which makes it difficult to properly decode the values. Use %x instead. Link: http://lkml.kernel.org/r/b7b4c45d-2f21-de6c-d1c8-16c8386da27c@list.ru Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net> Cc: Shuah Khan <shuah@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'linux-kselftest-4.11-rc1' of ↵Linus Torvalds2017-02-2557-402/+1312
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/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 ...
| * selftests/powerpc: Fix remaining fallout from recent changesMichael Ellerman2017-02-144-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In benchmarks we need to use $(TEST_GEN_PROGS) after we include lib.mk, because lib.mk does the substitution to add $(OUTPUT). In math the vmx and fpu names were typoed so they no longer matched correctly, put back the 'v' and 'f'. In tm we need to substitute $(OUTPUT) into SIGNAL_CONTEXT_CHK_TESTS so that the rule matches. In pmu there is an extraneous ':' on the end of $$BUILD_TARGET for the clean and install rules, which breaks the logic in the child Makefiles. Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests/powerpc: Fix the clean rule since recent changesMichael Ellerman2017-02-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The clean rule is broken for the powerpc tests: make[1]: Entering directory 'tools/testing/selftests/powerpc' Makefile:63: warning: overriding recipe for target 'clean' ../lib.mk:51: warning: ignoring old recipe for target 'clean' /bin/sh: 3: Syntax error: end of file unexpected (expecting "done") Makefile:63: recipe for target 'clean' failed Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: Fix the .S and .S -> .o rulesMichael Ellerman2017-02-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both these rules incorrectly use $< (first prerequisite) rather than $^ (all prerequisites), meaning they don't work if we're using more than one .S file as input. Switch them to using $^. They also don't include $(CPPFLAGS) and other variables used in the default rules, which breaks targets that require those. Fix that by using the builtin $(COMPILE.S) and $(LINK.S) rules. Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Tested by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: Fix the .c linking ruleMichael Ellerman2017-02-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we can't build some tests, for example: $ make -C tools/testing/selftests/ TARGETS=vm ... gcc -Wall -I ../../../../usr/include -lrt -lpthread ../../../../usr/include/linux/kernel.h userfaultfd.c -o tools/testing/selftests/vm/userfaultfd /tmp/ccmOkQSM.o: In function `stress': userfaultfd.c:(.text+0xc60): undefined reference to `pthread_create' userfaultfd.c:(.text+0xca5): undefined reference to `pthread_create' userfaultfd.c:(.text+0xcee): undefined reference to `pthread_create' userfaultfd.c:(.text+0xd30): undefined reference to `pthread_create' userfaultfd.c:(.text+0xd77): undefined reference to `pthread_join' userfaultfd.c:(.text+0xe7d): undefined reference to `pthread_join' userfaultfd.c:(.text+0xe9f): undefined reference to `pthread_cancel' userfaultfd.c:(.text+0xec6): undefined reference to `pthread_join' userfaultfd.c:(.text+0xf14): undefined reference to `pthread_join' /tmp/ccmOkQSM.o: In function `userfaultfd_stress': userfaultfd.c:(.text+0x13e2): undefined reference to `pthread_attr_setstacksize' collect2: error: ld returned 1 exit status This is because the rule for linking .c files to binaries is incorrect. The first bug is that it uses $< (first prerequisite) instead of $^ (all preqrequisites), fix it by using ^$. Secondly the ordering of the prerequisites vs $(LDLIBS) is wrong, meaning on toolchains that use --as-needed we fail to link (as above). Fix that by placing $(LDLIBS) *after* ^$. Finally switch to using the default rule $(LINK.c), so that we get $(CPPFLAGS) etc. included. Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Tested by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: Fix selftests build to just build, not run testsMichael Ellerman2017-02-141-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 88baa78d1f31 ("selftests: remove duplicated all and clean target"), the "all" target was removed from individual Makefiles and added to lib.mk. However the "all" target was added to lib.mk *after* the existing "runtests" target. This means "runtests" becomes the first (default) target for most of our Makefiles. This has the effect of causing a plain "make" to build *and run* the tests. Which is at best rude, but depending on which tests are run could oops someone's build machine. $ make -C tools/testing/selftests/ ... make[1]: Entering directory 'tools/testing/selftests/bpf' gcc -Wall -O2 -I../../../../usr/include test_verifier.c -o tools/testing/selftests/bpf/test_verifier gcc -Wall -O2 -I../../../../usr/include test_maps.c -o tools/testing/selftests/bpf/test_maps gcc -Wall -O2 -I../../../../usr/include test_lru_map.c -o tools/testing/selftests/bpf/test_lru_map #0 add+sub+mul FAIL Failed to load prog 'Function not implemented'! #1 unreachable FAIL Unexpected error message! #2 unreachable2 FAIL ... Fix it by moving the "all" target to the start of lib.mk, making it the default target. Fixes: 88baa78d1f31 ("selftests: remove duplicated all and clean target") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Tested by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests, x86, protection_keys: fix wrong offset in siginfoDave Hansen2017-02-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The siginfo contains a bunch of information about the fault. For protection keys, it tells us which protection key's permissions were violated. The wrong offset in here leads to reading garbage and thus failures in the tests. We should probably eventually move this over to using the kernel's headers defining the siginfo instead of a hard-coded offset. But, for now, just do the simplest fix. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests, x86, protection_keys: fix uninitialized variable warningDave Hansen2017-02-081-1/+1
| | | | | | | | | | | | | | 'orig_pkru' might have been uninitialized here. Fix it. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftest: cpufreq: Add special testsViresh Kumar2017-01-194-3/+146
| | | | | | | | | | | | | | | | | | This patch adds support for special tests which were reported on the PM list over the years, which helped catching core bugs by several developers. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftest: cpufreq: Add support to test cpufreq modulesViresh Kumar2017-01-193-6/+284
| | | | | | | | | | | | | | | | | | | | This patch adds support for cpufreq modules like cpufreq drivers and cpufreq governors. The tests will insert the modules in different orders and them perform basic cpufreq tests. The modules are then removed from the kernel. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftest: cpufreq: Add suspend/resume/hibernate supportViresh Kumar2017-01-192-2/+52
| | | | | | | | | | | | | | | | This patch adds support to test basic suspend/resume and hibernation to the cpufreq selftests. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftest: cpufreq: Add support for cpufreq testsViresh Kumar2017-01-196-0/+568
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds supports for basic cpufreq tests, which can be performed independent of any platform. It does basic tests for now, like - reading all cpufreq files - trying to update them - switching frequencies - switching governors This can be extended to have more specific tests later on. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: Add intel_pstate to TARGETSStafford Horne2017-01-191-0/+1
| | | | | | | | | | | | | | | | | | This test was missing from the TARGETS list. The test requires patches to cpupower to pass correctly. Cc: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests/intel_pstate: Update makefile to match new styleStafford Horne2017-01-191-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | Recent changes from Bamvor (88baa78d1f318) have standardized the variable names like TEST_GEN_FILES and removed the need for make targets all and clean. These changes bring the intel_pstate test inline with those changes. Cc: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests/intel_pstate: Fix warning on loop index overflowStafford Horne2017-01-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The build was showing the warning: aperf.c:60:27: warning: iteration 2147483647 invokes undefined behavior [-Waggressive-loop-optimizations] for (i=0; i<0x8fffffff; i++) { This change sets i, cpu and fd to unsigned int as they should not need to be signed. Cc: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * cpupower: Restore format of frequency-info limitStafford Horne2017-01-191-9/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The intel_pstate kselftest expects that the output of `cpupower frequency-info -l | tail -1 | awk ' { print $1 } '` to get frequency limits. This does not work after the following two changes. - 562e5f1a3: rework the "cpupower frequency-info" command (Jacob Tanenbaum) removed parsable limit output - ce512b840: Do not analyse offlined cpus (Thomas Renninger) added newline to break limit parsing more This change preserves human readable output if wanted as well as parsable output for scripts/tests. Cc: Thomas Renninger <trenn@suse.com> Cc: "Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests/futex: Add headers to makefile dependenciesStafford Horne2017-01-191-1/+4
| | | | | | | | | | | | | | | | | | The futex makefile did not contain dependencies for all headers, so if we make changes to logging.h rebuild will not happen. Add headers to fix it up. Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests/futex: Add stdio used for loggingStafford Horne2017-01-191-0/+1
| | | | | | | | | | | | | | Fix missing printf compile warnings. Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: x86 protection_keys remove dead codeShuah Khan2017-01-111-10/+0
| | | | | | | | | | | | Remove commented out calls to pkey_get(). Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: x86 protection_keys fix unused variable compile warningsShuah Khan2017-01-111-5/+0
| | | | | | | | | | | | Fix unused variable compile warnings in protection_keys.c Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: ipc add missing generated file to .gitignoreShuah Khan2017-01-111-0/+1
| | | | | | | | | | | | Add missing generated file msgque to .gitignore Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: gpio add .gitignore for generated filesShuah Khan2017-01-111-0/+1
| | | | | | | | | | | | Add .gitignore for generated files Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: enable O and KBUILD_OUTPUTbamvor.zhangjian@huawei.com2017-01-0518-75/+122
| | | | | | | | | | | | | | | | | | 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 <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: add EXTRA_CLEAN for clean targetbamvor.zhangjian@huawei.com2017-01-057-24/+17
| | | | | | | | | | | | | | | | | | | | | | | | Some testcases need the clean extra data after running. This patch introduce the "EXTRA_CLEAN" variable to address this requirement. After KBUILD_OUTPUT is enabled in later patch, it will be easy to decide to if we need do the cleanup in the KBUILD_OUTPUT path(if the testcase ran immediately after compiled). Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: remove CROSS_COMPILE in dedicated Makefilebamvor.zhangjian@huawei.com2017-01-052-2/+0
| | | | | | | | | | | | | | | | | | | | After previous clean up patches, memfd and timers could get CROSS_COMPILE from tools/testing/selftest/lib.mk. There is no need to preserve these definition. So, this patch remove them. Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: add default rules for c source filebamvor.zhangjian@huawei.com2017-01-056-21/+10
| | | | | | | | | | | | | | | | | | | | | | | | 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 <mpe@ellerman.id.au> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: remove useless TEST_DIRSbamvor.zhangjian@huawei.com2017-01-052-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TEST_DIRS was introduced in Commit e8c1d7cdf137 ("selftests: copy TEST_DIRS to INSTALL_PATH") for coping a whole directory in ftrace. After rsync(with -a) is introduced by Commit 900d65ee11aa ("selftests: change install command to rsync"). Rsync could handle the directory without the definition of TEST_DIRS. This patch simply replace TEST_DIRS with TEST_FILES in ftrace and remove the TEST_DIRS in tools/testing/selftest/lib.mk Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * selftests: remove duplicated all and clean targetbamvor.zhangjian@huawei.com2017-01-0536-255/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* | lib/find_bit.c: micro-optimise find_next_*_bitMatthew Wilcox2017-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This saves 32 bytes on my x86-64 build, mostly due to alignment considerations and sharing more code between find_next_bit and find_next_zero_bit, but it does save a couple of instructions. There's really two parts to this commit: - First, the first half of the test: (!nbits || start >= nbits) is trivially a subset of the second half, since nbits and start are both unsigned - Second, while looking at the disassembly, I noticed that GCC was predicting the branch taken. Since this is a failure case, it's clearly the less likely of the two branches, so add an unlikely() to override GCC's heuristics. [mawilcox@microsoft.com: v2] Link: http://lkml.kernel.org/r/1483709016-1834-1-git-send-email-mawilcox@linuxonhyperv.com Link: http://lkml.kernel.org/r/1483709016-1834-1-git-send-email-mawilcox@linuxonhyperv.com Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Acked-by: Yury Norov <ynorov@caviumnetworks.com> Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | userfaultfd: non-cooperative: selftest: enable REMOVE event test for shmemMike Rapoport2017-02-241-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | 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 <rppt@linux.vnet.ibm.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.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>
* | userfaultfd: non-cooperative: rename *EVENT_MADVDONTNEED to *EVENT_REMOVEMike Rapoport2017-02-241-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <rppt@linux.vnet.ibm.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: 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>
* | Merge tag 'drm-for-v4.11-less-shouty' of ↵Linus Torvalds2017-02-232-0/+30
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~airlied/linux Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.11. Nothing too major, the tinydrm and mmu-less support should make writing smaller drivers easier for some of the simpler platforms, and there are a bunch of documentation updates. Intel grew displayport MST audio support which is hopefully useful to people, and FBC is on by default for GEN9+ (so people know where to look for regressions). AMDGPU has a lot of fixes that would like new firmware files installed for some GPUs. Other than that it's pretty scattered all over. I may have a follow up pull request as I know BenH has a bunch of AST rework and fixes and I'd like to get those in once they've been tested by AST, and I've got at least one pull request I'm just trying to get the author to fix up. Core: - drm_mm reworked - Connector list locking and iterators - Documentation updates - Format handling rework - MMU-less support for fbdev helpers - drm_crtc_from_index helper - Core CRC API - Remove drm_framebuffer_unregister_private - Debugfs cleanup - EDID/Infoframe fixes - Release callback - Tinydrm support (smaller drivers for simple hw) panel: - Add support for some new simple panels i915: - FBC by default for gen9+ - Shared dpll cleanups and docs - GEN8 powerdomain cleanup - DMC support on GLK - DP MST audio support - HuC loading support - GVT init ordering fixes - GVT IOMMU workaround fix amdgpu/radeon: - Power/clockgating improvements - Preliminary SR-IOV support - TTM buffer priority and eviction fixes - SI DPM quirks removed due to firmware fixes - Powerplay improvements - VCE/UVD powergating fixes - Cleanup SI GFX code to match CI/VI - Support for > 2 displays on 3/5 crtc asics - SI headless fixes nouveau: - Rework securre boot code in prep for GP10x secure boot - Channel recovery improvements - Initial power budget code - MMU rework preperation vmwgfx: - Bunch of fixes and cleanups exynos: - Runtime PM support for MIC driver - Cleanups to use atomic helpers - UHD Support for TM2/TM2E boards - Trigger mode fix for Rinato board etnaviv: - Shader performance fix - Command stream validator fixes - Command buffer suballocator rockchip: - CDN DisplayPort support - IOMMU support for arm64 platform imx-drm: - Fix i.MX5 TV encoder probing - Remove lower fb size limits msm: - Support for HW cursor on MDP5 devices - DSI encoder cleanup - GPU DT bindings cleanup sti: - stih410 cleanups - Create fbdev at binding - HQVDP fixes - Remove stih416 chip functionality - DVI/HDMI mode selection fixes - FPS statistic reporting omapdrm: - IRQ code cleanup dwi-hdmi bridge: - Cleanups and fixes adv-bridge: - Updates for nexus sii8520 bridge: - Add interlace mode support - Rework HDMI and lots of fixes qxl: - probing/teardown cleanups ZTE drm: - HDMI audio via SPDIF interface - Video Layer overlay plane support - Add TV encoder output device atmel-hlcdc: - Rework fbdev creation logic tegra: - OF node fix fsl-dcu: - Minor fixes mali-dp: - Assorted fixes sunxi: - Minor fix" [ This was the "fixed" pull, that still had build warnings due to people not even having build tested the result. I'm not a happy camper I've fixed the things I noticed up in this merge. - Linus ] * tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits) lib/Kconfig: make PRIME_NUMBERS not user selectable drm/tinydrm: helpers: Properly fix backlight dependency drm/tinydrm: mipi-dbi: Fix field width specifier warning drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files drm/amd/powerplay: fix PSI feature on Polars12 drm/amdgpu: refuse to reserve io mem for split VRAM buffers drm/ttm: fix use-after-free races in vm fault handling drm/tinydrm: Add support for Multi-Inno MI0283QT display dt-bindings: Add Multi-Inno MI0283QT binding dt-bindings: display/panel: Add common rotation property of: Add vendor prefix for Multi-Inno drm/tinydrm: Add MIPI DBI support drm/tinydrm: Add helper functions drm: Add DRM support for tiny LCD displays drm/amd/amdgpu: post card if there is real hw resetting performed drm/nouveau/tmr: provide backtrace when a timeout is hit drm/nouveau/pci/g92: Fix rearm drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios drm/nouveau/hwmon: expose power_max and power_crit ..
| * \ Merge tag 'v4.10-rc8' into drm-nextDave Airlie2017-02-238-30/+68
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | Linux 4.10-rc8 Backmerge Linus rc8 to fix some conflicts, but also to avoid pulling it in via a fixes pull from someone.
| * \ \ Merge branch 'master' of ↵Dave Airlie2017-01-2719-77/+182
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Backmerge Linus master to get the connector locking revert. * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: (645 commits) sysctl: fix proc_doulongvec_ms_jiffies_minmax() Revert "drm/probe-helpers: Drop locking from poll_enable" MAINTAINERS: add Dan Streetman to zbud maintainers MAINTAINERS: add Dan Streetman to zswap maintainers mm: do not export ioremap_page_range symbol for external module mn10300: fix build error of missing fpu_save() romfs: use different way to generate fsid for BLOCK or MTD frv: add missing atomic64 operations mm, page_alloc: fix premature OOM when racing with cpuset mems update mm, page_alloc: move cpuset seqcount checking to slowpath mm, page_alloc: fix fast-path race with cpuset update or removal mm, page_alloc: fix check for NULL preferred_zone kernel/panic.c: add missing \n fbdev: color map copying bounds checking frv: add atomic64_add_unless() mm/mempolicy.c: do not put mempolicy before using its nodemask radix-tree: fix private list warnings Documentation/filesystems/proc.txt: add VmPin mm, memcg: do not retry precharge charges proc: add a schedule point in proc_pid_readdir() ...
| * \ \ \ Merge tag 'drm-misc-next-2016-12-30' of ↵Dave Airlie2017-01-092-0/+30
| |\ \ \ \ | | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/git/drm-misc into drm-next First -misc pull for 4.11: - drm_mm rework + lots of selftests (Chris Wilson) - new connector_list locking+iterators - plenty of kerneldoc updates - format handling rework from Ville - atomic helper changes from Maarten for better plane corner-case handling in drivers, plus the i915 legacy cursor patch that needs this - bridge cleanup from Laurent - plus plenty of small stuff all over - also contains a merge of the 4.10 docs tree so that we could apply the dma-buf kerneldoc patches It's a lot more than usual, but due to the merge window blackout it also covers about 4 weeks, so all in line again on a per-week basis. The more annoying part with no pull request for 4 weeks is managing cross-tree work. The -intel pull request I'll follow up with does conflict quite a bit with -misc here. Longer-term (if drm-misc keeps growing) a drm-next-queued to accept pull request for the next merge window during this time might be useful. I'd also like to backmerge -rc2+this into drm-intel next week, we have quite a pile of patches waiting for the stuff in here. * tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc: (126 commits) drm: Add kerneldoc markup for new @scan parameters in drm_mm drm/mm: Document locking rules drm: Use drm_mm_insert_node_in_range_generic() for everyone drm: Apply range restriction after color adjustment when allocation drm: Wrap drm_mm_node.hole_follows drm: Apply tight eviction scanning to color_adjust drm: Simplify drm_mm scan-list manipulation drm: Optimise power-of-two alignments in drm_mm_scan_add_block() drm: Compute tight evictions for drm_mm_scan drm: Fix application of color vs range restriction when scanning drm_mm drm: Unconditionally do the range check in drm_mm_scan_add_block() drm: Rename prev_node to hole in drm_mm_scan_add_block() drm: Fix O= out-of-tree builds for selftests drm: Extract struct drm_mm_scan from struct drm_mm drm: Add asserts to catch overflow in drm_mm_init() and drm_mm_init_scan() drm: Simplify drm_mm_clean() drm: Detect overflow in drm_mm_reserve_node() drm: Fix kerneldoc for drm_mm_scan_remove_block() drm: Promote drm_mm alignment to u64 drm: kselftest for drm_mm and restricted color eviction ...
| | * | | drm: Add some kselftests for the DRM range manager (struct drm_mm)Chris Wilson2016-12-271-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First we introduce a smattering of infrastructure for writing selftests. The idea is that we have a test module that exercises a particular portion of the exported API, and that module provides a set of tests that can either be run as an ensemble via kselftest or individually via an igt harness (in this case igt/drm_mm). To accommodate selecting individual tests, we export a boolean parameter to control selection of each test - that is hidden inside a bunch of reusable boilerplate macros to keep writing the tests simple. v2: Choose a random random_seed unless one is specified by the user. v3: More parameters to control max_iterations and max_prime of the tests. Testcase: igt/drm_mm Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-7-chris@chris-wilson.co.uk
| | * | | lib: Add a simple prime number generatorChris Wilson2016-12-271-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prime numbers are interesting for testing components that use multiplies and divides, such as testing DRM's struct drm_mm alignment computations. v2: Move to lib/, add selftest v3: Fix initial constants (exclude 0/1 from being primes) v4: More RCU markup to keep 0day/sparse happy v5: Fix RCU unwind on module exit, add to kselftests v6: Tidy computation of bitmap size v7: for_each_prime_number_from() v8: Compose small-primes using BIT() for easier verification v9: Move rcu dance entirely into callers. v10: Improve quote for Betrand's Postulate (aka Chebyshev's theorem) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Lukas Wunner <lukas@wunner.de> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161222144514.3911-1-chris@chris-wilson.co.uk
| | * | | Merge tag 'docs-4.10' of git://git.lwn.net/linux into drm-misc-nextDaniel Vetter2016-12-131-1/+1
| | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Backmerge the docs-next branch from Jon into drm-misc so that we can apply the dma-buf documentation cleanup patches. Git found a conflict where there was none because both drm-misc and docs had identical patches to clean up file rename issues in the rst include directives. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
* | | \ \ \ Merge tag 'gpio-v4.11-1' of ↵Linus Torvalds2017-02-232-1/+5
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.11 cycle Core changes: - Augment fwnode_get_named_gpiod() to configure the GPIO pin immediately after requesting it like all other APIs do. This is a treewide change also updating all users. - Pass a GPIO label down to gpiod_request() from fwnode_get_named_gpiod(). This makes debugfs and the userspace ABI correctly reflect the current in-kernel consumer of a pin taken using this abstraction. This is a treewide change also updating all users. - Rename devm_get_gpiod_from_child() to devm_fwnode_get_gpiod_from_child() to reflect the fact that this function is operating on a fwnode object. This is a treewide change also updating all users. - Make it possible to take multiple GPIOs in a single hog of device tree hogs. - The refactorings switching GPIO chips to use the .set_config() callback using standard pin control properties and providing a backend into the pin control subsystem that were also merged into the pin control tree naturally appear here too. Testing instrumentation: - A whole slew of cleanups and improvements to the mockup GPIO driver. We now have an extended userspace test exercising the subsystem, and we can inject interrupts etc from userspace to fully test the core GPIO functionality. New drivers: - New driver for the Cortina Systems Gemini GPIO controller. - New driver for the Exar XR17V352/354/358 chips. - New driver for the ACCES PCI-IDIO-16 PCI GPIO card. Driver changes: - RCAR: set the irqchip parent device, add fine-grained runtime PM support. - pca953x: support optional RESET control line on the chip. - DaVinci: cleanups and simplifications. Add support for multiple instances. - .set_multiple() and naming of lines on more or less all of the ISA/PCI GPIO controllers. - mcp23s08: refactored to use regmap as a first step to further rewrites and modernizations" * tag 'gpio-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (61 commits) gpio: reintroduce devm_get_gpiod_from_child() gpio: pci-idio-16: Fix PCI BAR index gpio: pci-idio-16: Fix PCI device ID code gpio: mockup: implement event injecting over debugfs gpio: mockup: add a dummy irqchip gpio: mockup: implement naming the lines gpio: mockup: code shrink gpio: mockup: readability tweaks gpio: Add GPIO support for the ACCES PCI-IDIO-16 gpio: Add the devm_fwnode_get_index_gpiod_from_child() helper gpio: Rename devm_get_gpiod_from_child() gpio: mcp23s08: Select REGMAP/REGMAP_I2C to fix build error gpio: ws16c48: Add support for GPIO names gpio: gpio-mm: Add support for GPIO names gpio: 104-idio-16: Add support for GPIO names gpio: 104-idi-48: Add support for GPIO names gpio: 104-dio-48e: Add support for GPIO names gpio: ws16c48: Remove unnecessary driver_data set gpio: gpio-mm: Remove unnecessary driver_data set gpio: 104-idio-16: Remove unnecessary driver_data set ...
| * | | | | | gpio-hammer: fix make consumer_label suitable to work on gpio-nailsUwe Kleine-König2017-01-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no gpio-nalils, so fix label accordingly. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | | | gpio: tools: add .gitignore for generated filesShuah Khan2017-01-111-0/+4
| |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add .gitignore for generated files. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> [Dropped include dir] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | | | | | userfaultfd: selftest: test UFFDIO_ZEROPAGE on all memory typesAndrea Arcangeli2017-02-221-1/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | userfaultfd: non-cooperative: selftest: add test for FORK, MADVDONTNEED and ↵Mike Rapoport2017-02-221-12/+163
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | REMAP events 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 <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | userfaultfd: non-cooperative: selftest: add ufd parameter to copy_pageMike Rapoport2017-02-221-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With future addition of event tests, copy_page will be called with different userfault file descriptors Link: http://lkml.kernel.org/r/20161216144821.5183-40-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | userfaultfd: non-cooperative: selftest: introduce userfaultfd_openMike Rapoport2017-02-221-16/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | userfaultfd: shmem: add userfaultfd_shmem testMike Rapoport2017-02-223-2/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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