November 2021 - Linux-kselftest-mirror

[PATCH 1/2] selftests: skip mincore.check_file_mmap when fs lacks needed support

by Cristian Marussi

Report mincore.check_file_mmap as SKIP instead of FAIL if the underlying filesystem lacks support of O_TMPFILE or fallocate since such failures are not really related to mincore functionality. Signed-off-by: Cristian Marussi <cristian.marussi(a)arm.com> --- This can happen especially on test-automation systems where rootfs can be configured as being on NFS or virtual disks. --- .../selftests/mincore/mincore_selftest.c | 20 +++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/mincore/mincore_selftest.c b/tools/testing/selftests/mincore/mincore_selftest.c index e54106643337..4c88238fc8f0 100644 --- a/tools/testing/selftests/mincore/mincore_selftest.c +++ b/tools/testing/selftests/mincore/mincore_selftest.c @@ -207,15 +207,21 @@ TEST(check_file_mmap) errno = 0; fd = open(".", O_TMPFILE | O_RDWR, 0600); - ASSERT_NE(-1, fd) { - TH_LOG("Can't create temporary file: %s", - strerror(errno)); + if (fd < 0) { + ASSERT_EQ(errno, EOPNOTSUPP) { + TH_LOG("Can't create temporary file: %s", + strerror(errno)); + } + SKIP(goto out_free, "O_TMPFILE not supported by filesystem."); } errno = 0; retval = fallocate(fd, 0, 0, FILE_SIZE); - ASSERT_EQ(0, retval) { - TH_LOG("Error allocating space for the temporary file: %s", - strerror(errno)); + if (retval) { + ASSERT_EQ(errno, EOPNOTSUPP) { + TH_LOG("Error allocating space for the temporary file: %s", + strerror(errno)); + } + SKIP(goto out_close, "fallocate not supported by filesystem."); } /* @@ -271,7 +277,9 @@ TEST(check_file_mmap) } munmap(addr, FILE_SIZE); +out_close: close(fd); +out_free: free(vec); } -- 2.17.1

3 years, 1 month

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[PATCH] selftests/exec: Fix build for non-regular

by Joerg Vehlow

From: Joerg Vehlow <joerg.vehlow(a)aox-tech.de> The non-regular binary was not built at all and make install failed with rsync: link_stat "tools/testing/selftests/exec/non-regular" failed: No such file or directory (2) rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1207) [sender=3.1.3] TEST_PROGS should only be used for shell scripts, not for binaries Fixes: 0f71241a8e32 ("selftests/exec: add file type errno tests") Signed-off-by: Joerg Vehlow <joerg.vehlow(a)aox-tech.de> --- tools/testing/selftests/exec/.gitignore | 1 + tools/testing/selftests/exec/Makefile | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/exec/.gitignore b/tools/testing/selftests/exec/.gitignore index 9e2f00343f15..9141262d14c1 100644 --- a/tools/testing/selftests/exec/.gitignore +++ b/tools/testing/selftests/exec/.gitignore @@ -12,3 +12,4 @@ execveat.denatured xxxxxxxx* pipe S_I*.test +non-regular diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile index dd61118df66e..46a12d6bd06f 100644 --- a/tools/testing/selftests/exec/Makefile +++ b/tools/testing/selftests/exec/Makefile @@ -3,8 +3,8 @@ CFLAGS = -Wall CFLAGS += -Wno-nonnull CFLAGS += -D_GNU_SOURCE -TEST_PROGS := binfmt_script non-regular -TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216 +TEST_PROGS := binfmt_script +TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216 non-regular TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir pipe # Makefile is a run-time dependency, since it's accessed by the execveat test TEST_FILES := Makefile -- 2.25.1

3 years, 1 month

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[PATCH] selftests/exec: Fix build

by Joerg Vehlow

From: Joerg Vehlow <joerg.vehlow(a)aox-tech.de> This fixes make: *** No rule to make target 'tools/testing/selftests/exec/pipe', needed by 'all'. Stop. Targets defined in TEST_DEN_FILES must exist as targets in the makefile, but pipe is only created by the test at runtime, so it should be cleaned only. Fixes: 61016db15b8e ("selftests/exec: Verify execve of non-regular files fail") Signed-off-by: Joerg Vehlow <joerg.vehlow(a)aox-tech.de> --- tools/testing/selftests/exec/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile index dd61118df66e..ac8acca7a942 100644 --- a/tools/testing/selftests/exec/Makefile +++ b/tools/testing/selftests/exec/Makefile @@ -5,14 +5,14 @@ CFLAGS += -D_GNU_SOURCE TEST_PROGS := binfmt_script non-regular TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216 -TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir pipe +TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir # Makefile is a run-time dependency, since it's accessed by the execveat test TEST_FILES := Makefile TEST_GEN_PROGS += recursion-depth EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx* \ - $(OUTPUT)/S_I*.test + $(OUTPUT)/S_I*.test $(OUTPUT)/pipe include ../lib.mk -- 2.25.1

3 years, 1 month

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[PATCH v10 0/5] gpio-sim: configfs-based GPIO simulator

by Bartosz Golaszewski

Here's the tenth revision of the simulator. As there was no reasoning with configfs maintainers for many months, this time the whole concept of committable items has been dropped. Instead, each configfs chip item (or rather a group - more on that later) exposes a new attribute called 'live'. Writing 1 to it brings the chip on-line (registers the platform device) and writing 0 tears it down. There are some caveats to that approach - for example: we can't block the user-space from deleting chip items when chips are live but is just handled by silently destroying the chip device in the background. Andy (rightfully) pointed out that parsing of the lists of line names is awkward so in this iteration it's been replaced by a system that is more elegant and will allow to easily extend configuration options for specific GPIO lines. This is achieved by turning the chip's configfs item into a configfs group and allowing the user-space to create additional items inside it. The items must be called line<offset> (e.g. line0, line12 etc.) where the offset part indicates to the module the offset for which given item stores the configuration for. Within each such line item, there are additional attributes that allow specifying configuration for specific lines. In v10 there are additional significant changes: Kent and Andy suggested that we should wait for probe() to finish and propagate any errors to user-space. In this version that is implemented. However there's no mechanism for propagating error codes from probe so we always return -ENXIO to the user-space if probe fails. Thanks to this approach, there's no longer need for using udev in user-space to wait for the device to appear. Once we return from the write() to live, the device is good to go. The lines can now be hogged from the kernel-space. This will allow the user-space to tests various use-cases involving busy lines without having to use the very tested interface to take them in the first place. I dropped the separate locks for lines because in most cases the chip lock needed to be taken anyway. It simplified the locking in general a lot. The sysfs interface has been reworked. Instead of creating a single group with a variable number of attributes (for each line) we go for a separate group for each line and a constant number of attributes that can be easily extended in the future. v1 -> v2: - add selftests for gpio-sim - add helper programs for selftests - update the configfs rename callback to work with the new API introduced in v5.11 - fix a missing quote in the documentation - use !! whenever using bits operation that are required to return 0 or 1 - use provided bitmap API instead of reimplementing copy or fill operations - fix a deadlock in gpio_sim_direction_output() - add new read-only configfs attributes for mapping of configfs items to GPIO device names - and address other minor issues pointed out in reviews of v1 v2 -> v3: - use devm_bitmap_alloc() instead of the zalloc variant if we're initializing the bitmap with 1s - drop the patch exporting device_is_bound() - don't return -ENODEV from dev_nam and chip_name configfs attributes, return a string indicating that the device is not available yet ('n/a') - fix indentation where it makes sense - don't protect IDA functions which use their own locking and where it's not needed - use kmemdup() instead of kzalloc() + memcpy() - collected review tags - minor coding style fixes v3 -> v4: - return 'none' instead of 'n/a' from dev_name and chip_name before the device is registered - use sysfs_emit() instead of s*printf() - drop GPIO_SIM_MAX_PROP as it's only used in an array's definition where it's fine to hardcode the value v4 -> v5: - drop lib patches that are already upstream - use BIT() instead of (1UL << bit) for flags - fix refcounting for the configfs_dirent in rename() - drop d_move() from the rename() callback - free memory allocated for the live and pending groups in configfs_d_iput() and not in detach_groups() - make sure that if a group of some name is in the live directory, a new group with the same name cannot be created in the pending directory v5 -> v6: - go back to using (1UL << bit) instead of BIT() - if the live group dentry doesn't exist for whatever reason at the time when mkdir() in the pending group is called (would be a BUG()), return -ENOENT instead of -EEXIST which should only be returned if given subsystem already exists in either live or pending group v6 -> v7: - as detailed by Andy in commit 6fda593f3082 ("gpio: mockup: Convert to use software nodes") removing device properties after the platform device is removed but before the GPIO device gets dropped can lead to a use-after-free bug - use software nodes to manually control the freeing of the properties v7 -> v8: - fixed some minor coding style issues as pointed out by Andy v8 -> v9: - dropped the patches implementing committable-items and reworked the driver to not use them - reworked the gpio-line-names property and configuring specific lines in general - many smaller tweaks here and there v9 -> v10: - make writing to 'live' wait for the probe to finish and report an error to user-space if it failed - add the ability to hog lines from the kernel-space - rework locking (drop separate locks for line context objects) - rework the sysfs interface (create a separate group for each line with a constant number of attributes instead of going the other way around) Bartosz Golaszewski (5): gpiolib: provide gpiod_remove_hogs() gpio: sim: new testing module selftests: gpio: provide a helper for reading chip info selftests: gpio: add a helper for reading GPIO line names selftests: gpio: add test cases for gpio-sim Documentation/admin-guide/gpio/gpio-sim.rst | 80 + drivers/gpio/Kconfig | 8 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-sim.c | 1370 +++++++++++++++++ drivers/gpio/gpiolib.c | 11 + include/linux/gpio/machine.h | 2 + tools/testing/selftests/gpio/.gitignore | 2 + tools/testing/selftests/gpio/Makefile | 4 +- tools/testing/selftests/gpio/config | 1 + tools/testing/selftests/gpio/gpio-chip-info.c | 57 + tools/testing/selftests/gpio/gpio-line-name.c | 55 + tools/testing/selftests/gpio/gpio-sim.sh | 306 ++++ 12 files changed, 1895 insertions(+), 2 deletions(-) create mode 100644 Documentation/admin-guide/gpio/gpio-sim.rst create mode 100644 drivers/gpio/gpio-sim.c create mode 100644 tools/testing/selftests/gpio/gpio-chip-info.c create mode 100644 tools/testing/selftests/gpio/gpio-line-name.c create mode 100755 tools/testing/selftests/gpio/gpio-sim.sh -- 2.25.1

3 years, 1 month

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[PATCH] selftests:vm: use swap() to make code cleaner

by cgel.zte＠gmail.com

From: chiminghao <chi.minghao(a)zte.com.cn> Fix the following coccicheck REVIEW: ./tools/testing/selftests/vm/userfaultfd.c:1531:21-22:use swap() to make code cleaner Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: chiminghao <chi.minghao(a)zte.com.cn> --- tools/testing/selftests/vm/userfaultfd.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 8a09057d2f22..dedbe9c9287e 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -1413,7 +1413,6 @@ static void userfaultfd_pagemap_test(unsigned int test_pgsize) static int userfaultfd_stress(void) { void *area; - char *tmp_area; unsigned long nr; struct uffdio_register uffdio_register; struct uffd_stats uffd_stats[nr_cpus]; @@ -1524,13 +1523,9 @@ static int userfaultfd_stress(void) count_verify[nr], nr); /* prepare next bounce */ - tmp_area = area_src; - area_src = area_dst; - area_dst = tmp_area; + swap(area_src, area_dst); - tmp_area = area_src_alias; - area_src_alias = area_dst_alias; - area_dst_alias = tmp_area; + swap(area_src_alias, area_dst_alias); uffd_stats_report(uffd_stats, nr_cpus); } -- 2.25.1

3 years, 1 month

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[PATCH MANUALSEL 4.19 1/4] KVM: selftests: Fix kvm_vm_free() in cr4_cpuid_sync and vmx_tsc_adjust tests

by Sasha Levin

From: Thomas Huth <thuth(a)redhat.com> [ Upstream commit 22d7108ce47290d47e1ea83a28fbfc85e0ecf97e ] The kvm_vm_free() statement here is currently dead code, since the loop in front of it can only be left with the "goto done" that jumps right after the kvm_vm_free(). Fix it by swapping the locations of the "done" label and the kvm_vm_free(). Signed-off-by: Thomas Huth <thuth(a)redhat.com> Message-Id: <20210826074928.240942-1-thuth(a)redhat.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/cr4_cpuid_sync_test.c | 3 +-- tools/testing/selftests/kvm/vmx_tsc_adjust_test.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/cr4_cpuid_sync_test.c b/tools/testing/selftests/kvm/cr4_cpuid_sync_test.c index 11ec358bf9690..8806ada996b60 100644 --- a/tools/testing/selftests/kvm/cr4_cpuid_sync_test.c +++ b/tools/testing/selftests/kvm/cr4_cpuid_sync_test.c @@ -106,8 +106,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); - done: + kvm_vm_free(vm); return 0; } diff --git a/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c b/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c index 49bcc68b02350..bae7e9072382c 100644 --- a/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c +++ b/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c @@ -169,7 +169,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); done: + kvm_vm_free(vm); return 0; } -- 2.33.0

3 years, 1 month

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[PATCH MANUALSEL 5.4 1/4] KVM: selftests: Fix kvm_vm_free() in cr4_cpuid_sync and vmx_tsc_adjust tests

by Sasha Levin

From: Thomas Huth <thuth(a)redhat.com> [ Upstream commit 22d7108ce47290d47e1ea83a28fbfc85e0ecf97e ] The kvm_vm_free() statement here is currently dead code, since the loop in front of it can only be left with the "goto done" that jumps right after the kvm_vm_free(). Fix it by swapping the locations of the "done" label and the kvm_vm_free(). Signed-off-by: Thomas Huth <thuth(a)redhat.com> Message-Id: <20210826074928.240942-1-thuth(a)redhat.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c | 3 +-- tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c index 63cc9c3f5ab67..6da030b173514 100644 --- a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c +++ b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c @@ -110,8 +110,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); - done: + kvm_vm_free(vm); return 0; } diff --git a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c index 5590fd2bcf87d..00e268b9ef4cd 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c @@ -162,7 +162,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); done: + kvm_vm_free(vm); return 0; } -- 2.33.0

3 years, 1 month

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[PATCH MANUALSEL 5.10 1/5] KVM: selftests: Fix kvm_vm_free() in cr4_cpuid_sync and vmx_tsc_adjust tests

by Sasha Levin

From: Thomas Huth <thuth(a)redhat.com> [ Upstream commit 22d7108ce47290d47e1ea83a28fbfc85e0ecf97e ] The kvm_vm_free() statement here is currently dead code, since the loop in front of it can only be left with the "goto done" that jumps right after the kvm_vm_free(). Fix it by swapping the locations of the "done" label and the kvm_vm_free(). Signed-off-by: Thomas Huth <thuth(a)redhat.com> Message-Id: <20210826074928.240942-1-thuth(a)redhat.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c | 3 +-- tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c index 140e91901582b..4d259294804fc 100644 --- a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c +++ b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c @@ -110,8 +110,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); - done: + kvm_vm_free(vm); return 0; } diff --git a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c index fbe8417cbc2c3..8b9fa313adf21 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c @@ -162,7 +162,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); done: + kvm_vm_free(vm); return 0; } -- 2.33.0

3 years, 1 month

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[PATCH MANUALSEL 5.15 4/8] KVM: selftests: Fix kvm_vm_free() in cr4_cpuid_sync and vmx_tsc_adjust tests

by Sasha Levin

From: Thomas Huth <thuth(a)redhat.com> [ Upstream commit 22d7108ce47290d47e1ea83a28fbfc85e0ecf97e ] The kvm_vm_free() statement here is currently dead code, since the loop in front of it can only be left with the "goto done" that jumps right after the kvm_vm_free(). Fix it by swapping the locations of the "done" label and the kvm_vm_free(). Signed-off-by: Thomas Huth <thuth(a)redhat.com> Message-Id: <20210826074928.240942-1-thuth(a)redhat.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c | 3 +-- tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c index f40fd097cb359..6f6fd189dda3f 100644 --- a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c +++ b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c @@ -109,8 +109,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); - done: + kvm_vm_free(vm); return 0; } diff --git a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c index 7e33a350b053a..e683d0ac3e45e 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c @@ -161,7 +161,7 @@ int main(int argc, char *argv[]) } } - kvm_vm_free(vm); done: + kvm_vm_free(vm); return 0; } -- 2.33.0

3 years, 1 month

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[RFC PATCH 3/3] tests: add new PR_SCHED_CORE_SHARE test

by Christian Brauner

From: Christian Brauner <christian.brauner(a)ubuntu.com> Add tests for the new PR_SCHED_CORE_SHARE command. Cc: Peter Collingbourne <pcc(a)google.com> Cc: Dietmar Eggemann <dietmar.eggemann(a)arm.com> Cc: Joel Fernandes <joel(a)joelfernandes.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Mel Gorman <mgorman(a)suse.de> Cc: Vincent Guittot <vincent.guittot(a)linaro.org> Cc: Chris Hyser <chris.hyser(a)oracle.com> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Juri Lelli <juri.lelli(a)redhat.com> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Daniel Bristot de Oliveira <bristot(a)redhat.com> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Ben Segall <bsegall(a)google.com> Cc: Balbir Singh <sblbir(a)amazon.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: linux-kernel(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner(a)ubuntu.com> --- tools/testing/selftests/sched/cs_prctl_test.c | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c index 8109b17dc764..985b83fe7221 100644 --- a/tools/testing/selftests/sched/cs_prctl_test.c +++ b/tools/testing/selftests/sched/cs_prctl_test.c @@ -229,6 +229,7 @@ int main(int argc, char *argv[]) int pidx; int pid; int opt; + int i; while ((opt = getopt(argc, argv, ":hkT:P:d:")) != -1) { switch (opt) { @@ -325,6 +326,28 @@ int main(int argc, char *argv[]) validate(get_cs_cookie(pid) != 0); validate(get_cs_cookie(pid) == get_cs_cookie(procs[pidx].thr_tids[0])); + printf("\n## Set a new cookie on a single thread/PR_SCHED_CORE_SCOPE_THREAD [%d]\n", pid); + if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, pid, PR_SCHED_CORE_SCOPE_THREAD, 0) < 0) + handle_error("core_sched create failed -- PR_SCHED_CORE_SCOPE_THREAD"); + disp_processes(num_processes, procs); + + validate(get_cs_cookie(pid) != get_cs_cookie(procs[pidx].thr_tids[0])); + + printf("\n## Copy cookie from a thread [%d] to [%d] as PR_SCHED_CORE_SCOPE_THREAD\n", pid, procs[pidx].thr_tids[0]); + if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE, procs[pidx].thr_tids[0], PR_SCHED_CORE_SCOPE_THREAD, pid) < 0) + handle_error("core_sched share cookie from and to thread failed -- PR_SCHED_CORE_SCOPE_THREAD"); + disp_processes(num_processes, procs); + + validate(get_cs_cookie(pid) == get_cs_cookie(procs[pidx].thr_tids[0])); + + printf("\n## Copy cookie from a thread [%d] to [%d] as PR_SCHED_CORE_SCOPE_THREAD_GROUP\n", pid, pid); + if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE, pid, PR_SCHED_CORE_SCOPE_THREAD_GROUP, pid) < 0) + handle_error("core_sched share cookie from and to thread-group failed -- PR_SCHED_CORE_SCOPE_THREAD_GROUP"); + disp_processes(num_processes, procs); + + for (i = 0; i < procs[pidx].num_threads; ++i) + validate(get_cs_cookie(pid) == get_cs_cookie(procs[pidx].thr_tids[i])); + if (errors) { printf("TESTS FAILED. errors: %d\n", errors); res = 10; -- 2.30.2

3 years, 1 month

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Linux-kselftest-mirror November 2021