Waiman Long a2ab7f2cf5 cgroup/cpuset: Fix wrong check in update_parent_subparts_cpumask() ... commit e5ae880384 upstream. It was found that the check to see if a partition could use up all the cpus from the parent cpuset in update_parent_subparts_cpumask() was incorrect. As a result, it is possible to leave parent with no effective cpu left even if there are tasks in the parent cpuset. This can lead to system panic as reported in [1]. Fix this probem by updating the check to fail the enabling the partition if parent's effective_cpus is a subset of the child's cpus_allowed. Also record the error code when an error happens in update_prstate() and add a test case where parent partition and child have the same cpu list and parent has task. Enabling partition in the child will fail in this case. [1] https://www.spinics.net/lists/cgroups/msg36254.html Fixes: f0af1bfc27 ("cgroup/cpuset: Relax constraints to partition & cpus changes") Cc: stable@vger.kernel.org # v6.1 Reported-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-02-09 11:28:15 +01:00
..
alsa	selftests: alsa: Handle pkg-config failure more gracefully	2022-05-31 18:02:18 +02:00
amd-pstate	cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT	2022-10-05 11:05:18 -06:00
arm64	Merge branch 'for-next/kselftest' into for-next/core	2022-09-30 09:18:11 +01:00
bpf	Revert "selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID"	2023-02-01 08:34:34 +01:00
breakpoints	…
capabilities	…
cgroup	cgroup/cpuset: Fix wrong check in update_parent_subparts_cpumask()	2023-02-09 11:28:15 +01:00
clone3	…
core	…
cpu-hotplug	selftests/cpu-hotplug: Add log info when test success	2022-10-05 11:05:18 -06:00
cpufreq	…
damon	selftest/damon: add a test for duplicate context dirs creation	2022-10-03 14:03:06 -07:00
dma	selftests dma: fix compile error for dma_map_benchmark	2022-06-16 14:03:21 -06:00
dmabuf-heaps	…
drivers	selftests: devlink: fix the fd redirect in dummy_reporter_test	2022-12-31 13:32:55 +01:00
efivarfs	selftests/efivarfs: Add checking of the test return value	2022-12-31 13:31:56 +01:00
exec	…
filesystems	selftests/filesystems: grant executable permission to run_fat_tests.sh	2023-02-09 11:28:01 +01:00
firmware	selftests: firmware: Add firmware upload selftests	2022-04-29 16:49:36 +02:00
fpu	…
ftrace	selftests/ftrace: event_triggers: wait longer for test_event_enable	2022-12-31 13:31:56 +01:00
futex	selftests/futex: fix build for clang	2022-10-18 14:13:11 -06:00
gpio	selftests: gpio: fix include path to kernel headers for out of tree builds	2022-07-20 14:35:18 +02:00
ia64	…
intel_pstate	selftests/intel_pstate: fix build for ARCH=x86_64	2022-10-18 14:13:19 -06:00
ipc	…
ir	kselftests/ir : Improve readability of modprobe error message	2022-05-16 13:34:19 -06:00
kcmp	selftests/kcmp: Make the test output consistent and clear	2022-07-08 10:55:43 -06:00
kexec	selftests/kexec: fix build for ARCH=x86_64	2022-10-18 14:13:25 -06:00
kmod	…
kselftest	…
kvm	KVM: selftests: add svm part to triple_fault_test	2022-11-17 11:40:00 -05:00
landlock	selftests/landlock: Build without static libraries	2022-10-19 22:10:56 +02:00
lib	…
livepatch	Merge branch 'for-6.1/sysfs-patched-object' into for-linus	2022-10-05 13:00:03 +02:00
lkdtm	lkdtm: Update tests for memcpy() run-time warnings	2022-09-07 16:37:27 -07:00
locking	…
media_tests	…
membarrier	…
memfd	…
memory-hotplug	selftests/memory-hotplug: Remove the redundant warning information	2022-10-18 14:21:18 -06:00
mincore	…
mount	…
mount_setattr	…
move_mount_set_group	…
mqueue	selftests: mqueue: drop duplicate min definition	2022-04-19 19:28:47 -06:00
nci	…
net	selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking	2023-02-09 11:28:11 +01:00
netfilter	selftests: netfilter: fix transaction test script timeout handling	2023-01-18 11:58:21 +01:00
nolibc	selftests/nolibc: Avoid generated files being committed	2022-08-31 05:17:45 -07:00
nsfs	…
ntb	…
openat2	…
perf_events	selftests/perf_events: Add a SIGTRAP stress test with disables	2022-10-17 16:32:06 +02:00
pid_namespace	selftests: fix header dependency for pid_namespace selftests	2022-04-04 13:32:31 -06:00
pidfd	selftests/pidfd_test: Remove the erroneous ','	2022-11-02 03:09:57 -06:00
powerpc	selftests/powerpc: Fix resource leaks	2022-12-31 13:32:51 +01:00
prctl	…
proc	proc: fix PIE proc-empty-vm, proc-pid-vm tests	2023-01-24 07:24:33 +01:00
pstore	…
ptp	…
ptrace	…
rcutorture	torture: Create kvm-check-branches.sh output in proper location	2022-06-21 15:57:04 -07:00
resctrl	selftests/resctrl: Fix null pointer dereference on open failed	2022-04-26 09:20:00 -06:00
rlimits	…
rseq	selftests/rseq: check if libc rseq support is registered	2022-06-28 09:08:28 +02:00
rtc	…
safesetid	LSM: SafeSetID: add setgroups() testing to selftest	2022-07-15 18:24:42 +00:00
sched	…
seccomp	selftests/seccomp: Fix compile warning when CC=clang	2022-07-27 12:12:16 -07:00
sgx	selftests/sgx: Ignore OpenSSL 3.0 deprecated functions warning	2022-08-15 16:50:07 -06:00
sigaltstack	…
size	…
sparc64	…
splice	…
static_keys	…
sync	remove CONFIG_ANDROID	2022-07-01 10:41:09 +02:00
syscall_user_dispatch	…
sysctl	selftests/sysctl: add sysctl macro test	2022-05-03 10:15:07 +02:00
tc-testing	selftests/tc-testing: update qdisc/cls/action features in config	2022-09-30 18:41:35 -07:00
timens	Revert "selftests/timens: add a test for vfork+exit"	2022-09-13 10:38:43 -07:00
timers	selftests: timers: clocksource-switch: adapt to kselftest framework	2022-07-14 14:36:52 -06:00
tmpfs	…
tpm2	selftest: tpm2: Add Client.__del__() to close /dev/tpm* handle	2022-10-05 00:25:56 +03:00
uevent	…
user	…
user_events	tracing/user_events: Use bits vs bytes for enabled status page data	2022-09-29 10:17:37 -04:00
vDSO	selftests/vDSO: fix array_size.cocci warning	2022-04-04 13:27:11 -06:00
vm	selftests/vm/pkeys: Add a regression test for setting PKRU through ptrace	2023-01-14 10:33:42 +01:00
watchdog	…
wireguard	wireguard: selftests: do not install headers on UML	2022-09-20 11:26:14 -07:00
x86	selftests/x86/corrupt_xstate_header: Use provided __cpuid_count() macro	2022-04-25 15:13:03 -06:00
zram	…
.gitignore	…
Makefile	selftests: add openvswitch selftest suite	2022-10-27 12:31:24 +02:00
gen_kselftest_tar.sh	…
kselftest.h	selftests: Provide local define of __cpuid_count()	2022-04-25 15:12:36 -06:00
kselftest_deps.sh	selftests: Make the usage formatting consistent in kselftest_deps.sh	2022-06-27 14:14:27 -06:00
kselftest_harness.h	selftests/harness: Pass variant to teardown	2022-04-04 13:37:48 -06:00
kselftest_install.sh	…
kselftest_module.h	selftest: Taint kernel when test module loaded	2022-07-11 16:58:11 -06:00
lib.mk	kselftest: Fix error message for unconfigured LLVM builds	2023-02-06 08:06:32 +01:00
run_kselftest.sh	…