David Vernet 830316807e cgroup: remove racy check in test_memcg_sock() ... test_memcg_sock() in the cgroup memcg tests, verifies expected memory accounting for sockets. The test forks a process which functions as a TCP server, and sends large buffers back and forth between itself (as the TCP client) and the forked TCP server. While doing so, it verifies that memory.current and memory.stat.sock look correct. There is currently a check in tcp_client() which asserts memory.current >= memory.stat.sock. This check is racy, as between memory.current and memory.stat.sock being queried, a packet could come in which causes mem_cgroup_charge_skmem() to be invoked. This could cause memory.stat.sock to exceed memory.current. Reversing the order of querying doesn't address the problem either, as memory may be reclaimed between the two calls. Instead, this patch just removes that assertion altogether, and instead relies on the values_close() check that follows to validate the expected accounting. Link: https://lkml.kernel.org/r/20220423155619.3669555-5-void@manifault.com Signed-off-by: David Vernet <void@manifault.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2022-05-13 07:20:12 -07:00
..
alsa	kselftest: alsa: fix spelling mistake "desciptor" -> "descriptor"	2022-02-08 08:24:42 +01:00
arm64	kselftest/arm64: Log the PIDs of the parent and child in sve-ptrace	2022-03-07 21:46:57 +00:00
bpf	bpf: Adjust bpf_tcp_check_syncookie selftest to test dual-stack sockets	2022-04-06 09:44:45 -07:00
breakpoints
capabilities
cgroup	cgroup: remove racy check in test_memcg_sock()	2022-05-13 07:20:12 -07:00
clone3	selftests: fixup build warnings in pidfd / clone3 tests	2022-02-04 13:07:07 -07:00
core	selftests/core: remove ARRAY_SIZE define from close_range_test.c	2021-12-10 17:50:38 -07:00
cpu-hotplug
cpufreq	selftests: cpufreq: Write test output to stdout as well	2022-01-25 13:20:03 -07:00
damon	selftets/damon/sysfs: test existence and permission of avail_operations	2022-05-13 07:20:06 -07:00
dma	dma-mapping: benchmark: extract a common header file for map_benchmark definition	2022-03-10 07:41:14 +01:00
dmabuf-heaps
drivers	selftests: mlxsw: vxlan_flooding_ipv6: Prevent flooding of unwanted packets	2022-04-20 15:04:27 +01:00
efivarfs
exec	linux-kselftest-next-5.18-rc1	2022-03-23 12:53:00 -07:00
filesystems
firmware
fpu
ftrace	selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT	2022-02-14 13:28:17 -07:00
futex	selftests: futex: Add the uapi headers include variable	2022-02-23 17:20:32 -07:00
gpio	gpio updates for v5.17	2022-01-11 12:31:35 -08:00
ia64
intel_pstate
ipc
ir	selftests/ir: fix build with ancient kernel headers	2022-02-04 13:14:41 -07:00
kcmp
kexec	selftests/kexec: Enable secureboot tests for PowerPC	2022-01-05 11:44:57 -05:00
kmod
kselftest	selftests/kselftest/runner.sh: Pass optional command parameters in environment	2022-02-23 17:14:36 -07:00
kvm	kvm: selftests: introduce and use more page size-related constants	2022-04-21 15:41:01 -04:00
landlock	selftests: landlock: Add the uapi headers include variable	2022-02-23 17:20:47 -07:00
lib
livepatch	livepatch: Skip livepatch tests if ftrace cannot be configured	2022-02-23 16:42:00 +01:00
lkdtm	powerpc updates for 5.18	2022-03-25 09:39:36 -07:00
locking
media_tests
membarrier
memfd	selftests/memfd: clean up mapping in mfd_fail_write	2022-02-26 09:51:17 -08:00
memory-hotplug	mm/memory_hotplug: remove CONFIG_MEMORY_HOTPLUG_SPARSE	2021-11-06 13:30:42 -07:00
mincore	selftests: skip mincore.check_file_mmap when fs lacks needed support	2022-01-27 16:40:45 -07:00
mount	selftests/mount: remove unneeded conversion to bool	2021-12-10 16:46:01 -07:00
mount_setattr	tests: fix idmapped mount_setattr test	2022-02-11 09:08:20 +01:00
move_mount_set_group	selftests/move_mount_set_group remove unneeded conversion to bool	2021-12-10 16:46:01 -07:00
mqueue	testing/selftests/mqueue: Fix mq_perf_tests to free the allocated cpu set	2022-04-12 13:54:49 -06:00
nci
net	selftests: net: fix nexthop warning cleanup double ip typo	2022-04-03 13:09:05 +01:00
netfilter	linux-kselftest-next-5.18-rc1	2022-03-23 12:53:00 -07:00
nsfs
ntb
openat2	selftests: openat2: Skip testcases that fail with EOPNOTSUPP	2022-01-27 16:31:07 -07:00
perf_events	selftests/perf_events: Test modification of perf_event_attr::sig_data	2022-02-02 13:11:40 +01:00
pid_namespace	selftests: fix header dependency for pid_namespace selftests	2022-04-04 13:32:31 -06:00
pidfd	selftests: fix an unused variable warning in pidfd selftest	2022-04-04 13:32:53 -06:00
powerpc	selftest/powerpc: Add PAPR sysfs attributes sniff test	2022-03-08 00:05:00 +11:00
prctl
proc	selftests/proc: fix array_size.cocci warning	2022-04-04 13:27:21 -06:00
pstore
ptp	testptp: add option to shift clock by nanoseconds	2022-02-22 17:03:40 -08:00
ptrace
rcutorture	rcutorture: Provide non-power-of-two Tasks RCU scenarios	2022-02-08 11:19:15 -08:00
resctrl
rlimits
rseq	RISC-V Patches for the 5.18 Merge Window, Part 1	2022-03-25 10:11:38 -07:00
rtc	selftests/rtc: continuously read RTC in a loop for 30s	2022-02-25 17:00:51 -07:00
safesetid
sched
seccomp	selftests/seccomp: Fix seccomp failure by adding missing headers	2022-02-14 11:14:38 -07:00
sgx	selftests/sgx: Treat CC as one argument	2022-02-17 11:55:17 -08:00
sigaltstack
size
sparc64	selftests/sparc64: remove ARRAY_SIZE define from adi-test	2021-12-10 17:51:15 -07:00
splice
static_keys
sync
syscall_user_dispatch
sysctl
tc-testing	selftests: tc-testing: Increase timeout in tdc config file	2022-03-14 10:27:52 +00:00
timens	selftests/timens: remove ARRAY_SIZE define from individual tests	2021-12-10 17:51:20 -07:00
timers	selftests: timers: Remove unneeded semicolon	2021-12-10 16:46:00 -07:00
tmpfs
tpm2	selftests: tpm: add async space test with noneexisting handle	2022-03-08 10:33:17 +02:00
uevent
user
user_events	user_events: Add self-test for validator boundaries	2022-02-10 22:38:08 -05:00
vDSO	selftests/vDSO: fix array_size.cocci warning	2022-04-04 13:27:11 -06:00
vm	userfaultfd/selftests: use swap() instead of open coding it	2022-05-13 07:20:12 -07:00
watchdog
wireguard	wireguard: selftests: enable ACPI for SMP	2022-04-22 15:59:05 -07:00
x86	selftests: x86: add 32bit build warnings for SUSE	2022-04-04 13:29:43 -06:00
zram	selftests/zram: Adapt the situation that /dev/zram0 is being used	2022-01-27 10:59:02 -07:00
.gitignore	selftests: add kselftest_install to .gitignore	2022-03-03 15:16:57 -07:00
gen_kselftest_tar.sh
kselftest_deps.sh
kselftest_harness.h	selftests/harness: Pass variant to teardown	2022-04-04 13:37:48 -06:00
kselftest_install.sh
kselftest_module.h
kselftest.h	selftests: kselftest framework: provide "finished" helper	2022-03-24 19:06:51 -07:00
lib.mk	kbuild: Make $(LLVM) more flexible	2022-03-31 12:03:46 +09:00
Makefile	selftests: Fix build when $(O) points to a relative path	2022-03-03 15:18:13 -07:00
run_kselftest.sh