Shakeel Butt 84029fd04c memcg: account security cred as well to kmemcg ... The cred_jar kmem_cache is already memcg accounted in the current kernel but cred->security is not. Account cred->security to kmemcg. Recently we saw high root slab usage on our production and on further inspection, we found a buggy application leaking processes. Though that buggy application was contained within its memcg but we observe much more system memory overhead, couple of GiBs, during that period. This overhead can adversely impact the isolation on the system. One source of high overhead we found was cred->security objects, which have a lifetime of at least the life of the process which allocated them. Link: http://lkml.kernel.org/r/20191205223721.40034-1-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Acked-by: Chris Down <chris@chrisdown.name> Reviewed-by: Roman Gushchin <guro@fb.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-01-04 13:55:09 -08:00
..
bpf	bpf: Fix precision tracking for unbounded scalars	2019-12-22 17:21:10 -08:00
cgroup	Merge branch 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2019-11-25 19:23:46 -08:00
configs	…
debug	kdb: Tweak escape handling for vi users	2019-10-28 12:08:29 +00:00
dma	lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr	2019-12-04 19:44:13 -08:00
events	perf/core: Add SRCU annotation for pmus list walk	2019-12-17 13:32:46 +01:00
gcov	um: Enable CONFIG_CONSTRUCTORS	2019-09-15 21:37:13 +02:00
irq	irqchip updates for Linux 5.5	2019-11-20 14:16:34 +01:00
livepatch	New tracing features:	2019-11-27 11:42:01 -08:00
locking	Revert "locking/mutex: Complain upon mutex API misuse in IRQ contexts"	2019-12-11 00:27:43 +01:00
power	Additional power management updates for 5.5-rc1	2019-12-04 10:48:09 -08:00
printk	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 09:29:50 -08:00
rcu	Merge branches 'doc.2019.10.29a', 'fixes.2019.10.30a', 'nohz.2019.10.28a', 'replace.2019.10.30a', 'torture.2019.10.05a' and 'lkmm.2019.10.05a' into HEAD	2019-10-30 08:47:13 -07:00
sched	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-21 10:52:10 -08:00
time	ptp: fix the race between the release of ptp_clock and cdev	2019-12-30 20:19:27 -08:00
trace	tracing: Fix endianness bug in histogram trigger	2019-12-21 16:08:59 -05:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	sched/Kconfig: Fix spelling mistake in user-visible help text	2019-11-12 11:35:32 +01:00
Makefile	Kbuild updates for v5.5	2019-12-02 17:35:04 -08:00
acct.c	…
async.c	…
audit.c	audit: remove redundant condition check in kauditd_thread()	2019-10-25 11:48:14 -04:00
audit.h	…
audit_fsnotify.c	…
audit_tree.c	…
audit_watch.c	audit_get_nd(): don't unlock parent too early	2019-11-10 11:56:55 -05:00
auditfilter.c	…
auditsc.c	Revert "bpf: Emit audit messages upon successful prog load and unload"	2019-11-23 09:56:02 -08:00
backtracetest.c	…
bounds.c	…
capability.c	…
compat.c	y2038: itimer: compat handling to itimer.c	2019-11-15 14:38:30 +01:00
configs.c	…
context_tracking.c	context_tracking: Rename context_tracking_is_enabled() => context_tracking_enabled()	2019-10-29 10:01:12 +01:00
cpu.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-11-26 16:02:40 -08:00
cpu_pm.c	…
crash_core.c	…
crash_dump.c	…
cred.c	memcg: account security cred as well to kmemcg	2020-01-04 13:55:09 -08:00
delayacct.c	…
dma.c	…
elfcore.c	kernel/elfcore.c: include proper prototypes	2019-09-25 17:51:39 -07:00
exec_domain.c	…
exit.c	for-linus-2020-01-03	2020-01-03 11:17:14 -08:00
extable.c	bpf: Add support for BTF pointers to x86 JIT	2019-10-17 16:44:36 +02:00
fail_function.c	…
fork.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 12:20:25 -08:00
freezer.c	Revert "libata, freezer: avoid block device removal while system is frozen"	2019-10-06 09:11:37 -06:00
futex.c	futex: Prevent exit livelock	2019-11-20 09:40:38 +01:00
gen_kheaders.sh	kheaders: explain why include/config/autoconf.h is excluded from md5sum	2019-11-11 20:10:01 +09:00
groups.c	…
hung_task.c	…
iomem.c	…
irq_work.c	irq_work: Fix IRQ_WORK_BUSY bit clearing	2019-11-15 10:48:37 +01:00
jump_label.c	jump_label: Don't warn on __exit jump entries	2019-08-29 15:10:10 +01:00
kallsyms.c	kallsyms: Don't let kallsyms_lookup_size_offset() fail on retrieving the first symbol	2019-08-27 16:19:56 +01:00
kcmp.c	…
kcov.c	kcov: remote coverage support	2019-12-04 19:44:14 -08:00
kexec.c	kexec_load: Disable at runtime if the kernel is locked down	2019-08-19 21:54:15 -07:00
kexec_core.c	kexec: bail out upon SIGKILL when allocating memory.	2019-09-25 17:51:40 -07:00
kexec_elf.c	kexec_elf: support 32 bit ELF files	2019-09-06 23:58:44 +02:00
kexec_file.c	kexec: Fix pointer-to-int-cast warnings	2019-11-01 21:42:58 +01:00
kexec_internal.h	…
kheaders.c	…
kmod.c	…
kprobes.c	Tracing updates:	2019-09-20 11:19:48 -07:00
ksysfs.c	…
kthread.c	kthread: make __kthread_queue_delayed_work static	2019-10-16 09:20:58 -07:00
latencytop.c	…
module-internal.h	…
module.c	This contains 3 changes:	2019-12-11 12:22:38 -08:00
module_signature.c	…
module_signing.c	…
notifier.c	kernel/notifier.c: remove blocking_notifier_chain_cond_register()	2019-12-04 19:44:12 -08:00
nsproxy.c	…
padata.c	padata: remove cpu_index from the parallel_queue	2019-09-13 21:15:41 +10:00
panic.c	locking/refcount: Remove unused 'refcount_error_report()' function	2019-11-25 09:15:42 +01:00
params.c	lockdown: Lock down module params that specify hardware parameters (eg. ioport)	2019-08-19 21:54:16 -07:00
pid.c	fork: extend clone3() to support setting a PID	2019-11-15 23:49:22 +01:00
pid_namespace.c	fork: extend clone3() to support setting a PID	2019-11-15 23:49:22 +01:00
profile.c	kernel/profile.c: use cpumask_available to check for NULL cpumask	2019-12-04 19:44:12 -08:00
ptrace.c	…
range.c	…
reboot.c	…
relay.c	…
resource.c	mm/memory_hotplug.c: use PFN_UP / PFN_DOWN in walk_system_ram_range()	2019-09-24 15:54:09 -07:00
rseq.c	…
seccomp.c	seccomp: Check that seccomp_notif is zeroed out by the user	2020-01-02 13:03:45 -08:00
signal.c	cgroup: freezer: call cgroup_enter_frozen() with preemption disabled in ptrace_stop()	2019-10-11 08:39:57 -07:00
smp.c	…
smpboot.c	…
smpboot.h	…
softirq.c	…
stackleak.c	…
stacktrace.c	stacktrace: Get rid of unneeded '!!' pattern	2019-11-11 10:30:59 +01:00
stop_machine.c	Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2019-10-31 09:33:19 +01:00
sys.c	kernel/sys.c: avoid copying possible padding bytes in copy_to_user	2019-12-04 19:44:12 -08:00
sys_ni.c	y2038: allow disabling time32 system calls	2019-11-15 14:38:30 +01:00
sysctl-test.c	kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()	2019-09-30 17:35:01 -06:00
sysctl.c	kernel: sysctl: make drop_caches write-only	2019-12-01 12:59:07 -08:00
sysctl_binary.c	sysctl: Remove the sysctl system call	2019-11-26 13:03:56 -06:00
task_work.c	…
taskstats.c	taskstats: fix data-race	2019-12-04 15:18:39 +01:00
test_kprobes.c	…
torture.c	…
tracepoint.c	…
tsacct.c	…
ucount.c	…
uid16.c	…
uid16.h	…
umh.c	…
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	…
utsname.c	…
utsname_sysctl.c	…
watchdog.c	…
watchdog_hld.c	…
workqueue.c	workqueue: Use pr_warn instead of pr_warning	2019-12-06 09:59:30 +01:00
workqueue_internal.h	…