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

..

alarmtimer.c

alarmtimer: Check RTC features instead of ops

2021-05-11 21:28:04 +02:00

clockevents.c

clockevents: Use list_move() instead of list_del()/list_add()

2021-06-22 17:16:46 +02:00

clocksource-wdtest.c

clocksource: Provide kernel module to test clocksource watchdog

2021-06-22 16:53:17 +02:00

clocksource.c

clocksource: Print deviation in nanoseconds when a clocksource becomes unstable

2021-06-22 16:53:17 +02:00

hrtimer.c

Merge tag 'timers-core-2021-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-04-26 09:54:03 -07:00

itimer.c

time: Prevent undefined behaviour in timespec64_to_ns()

2020-10-26 11:48:11 +01:00

jiffies.c

clocksource: Reduce clocksource-skew threshold

2021-06-22 16:53:16 +02:00

Kconfig

Merge tag 'timers-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-06-29 12:31:16 -07:00

Makefile

time: Improve performance of time64_to_tm()

2021-06-24 11:51:59 +02:00

namespace.c

memcg: enable accounting for new namesapces and struct nsproxy

2021-09-03 09:58:12 -07:00

ntp_internal.h

ntp: Make the RTC synchronization more reliable

2020-12-11 10:40:52 +01:00

ntp.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

posix-clock.c

posix-clocks: Rename the clock_get() callback to clock_get_timespec()

2020-01-14 12:20:49 +01:00

posix-cpu-timers.c

posix-cpu-timers: Fix rearm racing against process tick

2021-07-15 01:20:10 +02:00

posix-stubs.c

posix-timers: Make clock_nanosleep() time namespace aware

2020-01-14 12:20:55 +01:00

posix-timers.c

memcg: enable accounting for posix_timers_cache slab

2021-09-03 09:58:13 -07:00

posix-timers.h

posix-clocks: Introduce clock_get_ktime() callback

2020-01-14 12:20:51 +01:00

sched_clock.c

time/sched_clock: Mark sched_clock_read_begin/retry() as notrace

2020-10-26 11:34:31 +01:00

test_udelay.c

time/debug: Remove dentry pointer for debugfs

2021-03-18 11:20:26 +01:00

tick-broadcast-hrtimer.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

tick-broadcast.c

timer_list: Print name of per-cpu wakeup device

2021-05-31 17:04:49 +02:00

tick-common.c

tick/broadcast: Prefer per-cpu oneshot wakeup timers to broadcast

2021-05-31 17:04:45 +02:00

tick-internal.h

timer_list: Print name of per-cpu wakeup device

2021-05-31 17:04:49 +02:00

tick-legacy.c

timekeeping: remove xtime_update

2020-10-30 21:57:07 +01:00

tick-oneshot.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

tick-sched.c

Merge tag 'timers-nohz-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-06-28 12:22:06 -07:00

tick-sched.h

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

time_test.c

time/kunit: Add missing MODULE_LICENSE()

2021-06-28 07:40:23 +02:00

time.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00

timeconst.bc

…

timeconv.c

time: Improve performance of time64_to_tm()

2021-06-24 11:51:59 +02:00

timecounter.c

time/timecounter: Mark 1st argument of timecounter_cyc2time() as const

2021-04-16 21:03:50 +02:00

timekeeping_debug.c

…

timekeeping_internal.h

timekeeping/vsyscall: Provide vdso_update_begin/end()

2020-08-06 10:57:30 +02:00

timekeeping.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-05-01 10:14:08 -07:00

timekeeping.h

Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

2020-12-16 00:07:17 -08:00

timer_list.c

timer_list: Print name of per-cpu wakeup device

2021-05-31 17:04:49 +02:00

timer.c

timers: Move clearing of base::timer_running under base:: Lock

2021-07-27 20:57:44 +02:00

vsyscall.c

timekeeping, clocksource: Fix various typos in comments

2021-03-22 23:06:48 +01:00