Vasily Averin c509723ec2 memcg: enable accounting for posix_timers_cache slab ... A program may create multiple interval timers using timer_create(). For each timer the kernel preallocates a "queued real-time signal", Consequently, the number of timers is limited by the RLIMIT_SIGPENDING resource limit. The allocated object is quite small, ~250 bytes, but even the default signal limits allow to consume up to 100 megabytes per user. It makes sense to account for them to limit the host's memory consumption from inside the memcg-limited container. Link: https://lkml.kernel.org/r/57795560-025c-267c-6b1a-dea852d95530@virtuozzo.com Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Shakeel Butt <shakeelb@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andrei Vagin <avagin@gmail.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Jeff Layton <jlayton@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kirill Tkhai <ktkhai@virtuozzo.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Roman Gushchin <guro@fb.com> Cc: Serge Hallyn <serge@hallyn.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Yutian Yang <nglaive@gmail.com> Cc: Zefan Li <lizefan.x@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-09-03 09:58:13 -07:00
..
bpf	bpf: Fix ringbuf helper function compatibility	2021-08-23 23:09:10 +02:00
cgroup	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
configs
debug
dma
entry
events
gcov
irq	genirq/msi: Ensure deactivation on teardown	2021-08-10 15:55:19 +02:00
kcsan
livepatch
locking	locking/rtmutex: Use the correct rtmutex debugging config option	2021-08-10 08:21:52 +02:00
power
printk
rcu
sched	sched: Fix get_push_task() vs migrate_disable()	2021-08-26 19:02:00 +02:00
time	memcg: enable accounting for posix_timers_cache slab	2021-09-03 09:58:13 -07:00
trace	tracing: Limit the shooting in the foot of tp_printk	2021-08-17 09:47:18 -10:00
.gitignore
acct.c
async.c
audit.c
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cfi.c	cfi: Use rcu_read_{un}lock_sched_notrace	2021-08-11 13:11:12 -07:00
compat.c
configs.c
context_tracking.c
cpu.c
cpu_pm.c
crash_core.c
crash_dump.c
cred.c	ucounts: Increase ucounts reference counter before the security hook	2021-08-23 16:13:04 -05:00
delayacct.c
dma.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c	ucounts: Fix regression preventing increasing of rlimits in init_user_ns	2021-08-23 16:10:42 -05:00
freezer.c
futex.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c
kexec_elf.c
kexec_file.c
kexec_internal.h
kheaders.c
kmod.c
kprobes.c
ksysfs.c
kthread.c
latencytop.c
Makefile
module-internal.h
module.c
module_signature.c
module_signing.c
notifier.c
nsproxy.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
padata.c
panic.c
params.c
pid.c
pid_namespace.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
profile.c
ptrace.c
range.c
reboot.c
regset.c
relay.c
resource.c
resource_kunit.c
rseq.c
scftorture.c
scs.c
seccomp.c	seccomp: Fix setting loaded filter count during TSYNC	2021-08-11 11:48:28 -07:00
signal.c	memcg: enable accounting for signals	2021-09-03 09:58:12 -07:00
smp.c
smpboot.c	smpboot: fix duplicate and misplaced inlining directive	2021-07-25 11:06:37 -07:00
smpboot.h
softirq.c
stackleak.c
stacktrace.c
static_call.c
stop_machine.c
sys.c
sys_ni.c
sysctl-test.c
sysctl.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Use rcu get state and cond sync for static call updates	2021-08-06 10:54:41 -04:00
tsacct.c
ucount.c	ucounts: add missing data type changes	2021-08-09 15:45:02 -05:00
uid16.c
uid16.h
umh.c
up.c
user-return-notifier.c
user.c
user_namespace.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
usermode_driver.c
utsname.c
utsname_sysctl.c
watch_queue.c
watchdog.c
watchdog_hld.c
workqueue.c
workqueue_internal.h