Tejun Heo a8638030f6 cgroup: add cgroup_subsys->post_create() ...

Currently, there's no way for a controller to find out whether a new
cgroup finished all ->create() allocatinos successfully and is
considered "live" by cgroup.

This becomes a problem later when we add generic descendants walking
to cgroup which can be used by controllers as controllers don't have a
synchronization point where it can synchronize against new cgroups
appearing in such walks.

This patch adds ->post_create().  It's called after all ->create()
succeeded and the cgroup is linked into the generic cgroup hierarchy.
This plays the counterpart of ->pre_destroy().

When used in combination with the to-be-added generic descendant
iterators, ->post_create() can be used to implement reliable state
inheritance.  It will be explained with the descendant iterators.

v2: Added a paragraph about its future use w/ descendant iterators per
    Michal.

v3: Forgot to add ->post_create() invocation to cgroup_load_subsys().
    Fixed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Glauber Costa <glommer@parallels.com>

2012-11-09 09:12:29 -08:00

..

debug

KGDB/KDB fixes and cleanups

2012-10-13 11:16:58 +09:00

events

Merge branch 'uprobes/core' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/urgent

2012-10-21 18:18:17 +02:00

gcov

gcov: disable CONSTRUCTORS for UML

2011-07-26 16:49:45 -07:00

irq

irqdomain: augment add_simple() to allocate descs

2012-10-10 08:57:26 +02:00

power

freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()

2012-10-26 14:27:49 -07:00

sched

Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-10-12 22:13:05 +09:00

time

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-10-12 22:17:48 +09:00

trace

Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent

2012-10-21 19:53:34 +02:00

.gitignore

…

acct.c

vfs: make path_openat take a struct filename pointer

2012-10-12 20:15:09 -04:00

async.c

[SCSI] async: make async_synchronize_full() flush all work regardless of domain

2012-07-20 09:07:37 +01:00

audit_tree.c

audit: clean up refcounting in audit-tree

2012-08-15 12:55:22 +02:00

audit_watch.c

audit: optimize audit_compare_dname_path

2012-10-12 00:32:02 -04:00

audit.c

fs: handle failed audit_log_start properly

2012-10-09 23:33:37 -04:00

audit.h

audit: optimize audit_compare_dname_path

2012-10-12 00:32:02 -04:00

auditfilter.c

audit: optimize audit_compare_dname_path

2012-10-12 00:32:02 -04:00

auditsc.c

audit: make audit_inode take struct filename

2012-10-12 20:15:09 -04:00

backtracetest.c

…

bounds.c

memcg: remove direct page_cgroup-to-page pointer

2011-03-23 19:46:28 -07:00

capability.c

userns: Teach inode_capable to understand inodes whose uids map to other namespaces.

2012-05-15 14:59:24 -07:00

cgroup_freezer.c

freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()

2012-10-26 14:27:49 -07:00

cgroup.c

cgroup: add cgroup_subsys->post_create()

2012-11-09 09:12:29 -08:00

compat.c

new helper: sigsuspend()

2012-05-21 23:52:30 -04:00

configs.c

kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n

2011-07-25 20:57:15 -07:00

cpu_pm.c

kernel/cpu_pm.c: fix various typos

2012-05-31 17:49:27 -07:00

cpu.c

CPU hotplug, debug: detect imbalance between get_online_cpus() and put_online_cpus()

2012-10-09 16:22:15 +09:00

cpuset.c

cpusets: Remove/update outdated comments

2012-07-24 13:53:28 +02:00

crash_dump.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

cred.c

userns: Make credential debugging user namespace safe.

2012-08-23 22:54:18 -07:00

delayacct.c

KVM: Steal time implementation

2011-07-14 12:59:14 +03:00

dma.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

elfcore.c

elf coredump: add extended numbering support

2010-03-06 11:26:46 -08:00

exec_domain.c

sys_personality: remove the bogus checks in sys_personality()->__set_personality() path

2010-08-09 20:45:05 -07:00

exit.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

extable.c

extable: Skip sorting if sorted at build time.

2012-04-19 15:06:55 -07:00

fork.c

cgroup: cgroup_subsys->fork() should be called after the task is added to css_set

2012-10-16 15:03:14 -07:00

freezer.c

freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()

2012-10-26 14:27:49 -07:00

futex_compat.c

futex: Mark get_robust_list as deprecated

2012-03-29 11:37:17 +02:00

futex.c

futex: Forbid uaddr == uaddr2 in futex_wait_requeue_pi()

2012-07-24 16:02:57 +02:00

groups.c

userns: Convert in_group_p and in_egroup_p to use kgid_t

2012-05-03 03:29:33 -07:00

hrtimer.c

hrtimer: Update hrtimer base offsets each hrtimer_interrupt

2012-07-11 23:34:39 +02:00

hung_task.c

hung task debugging: Inject NMI when hung and going to panic

2012-04-25 12:39:25 +02:00

irq_work.c

irq_work: fix compile failure on tile from missing include

2012-04-13 13:15:16 -04:00

itimer.c

itimer: Use printk_once instead of WARN_ONCE

2012-04-10 11:00:30 +02:00

jump_label.c

jump_label: Export jump_label_rate_limit()

2012-08-06 19:00:35 +03:00

kallsyms.c

vsprintf: fix %ps on non symbols when using kallsyms

2012-05-29 16:22:32 -07:00

kcmp.c

syscalls, x86: add __NR_kcmp syscall

2012-05-31 17:49:32 -07:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking: Adjust spin lock inlining Kconfig options

2012-09-13 17:56:13 +02:00

Kconfig.preempt

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

kexec.c

kdump: remove unneeded include

2012-10-06 03:05:19 +09:00

kfifo.c

[media] kernel:kfifo: export __kfifo_max_r symbol

2012-04-11 18:24:37 -03:00

kmod.c

infrastructure for saner ret_from_kernel_thread semantics

2012-10-12 13:35:07 -04:00

kprobes.c

kprobes/x86: Fix to support jprobes on ftrace-based kprobe

2012-09-13 22:52:11 -04:00

ksysfs.c

kernel: ksysfs.c is implicitly using stat.h

2011-10-31 09:20:13 -04:00

kthread.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2012-10-13 10:05:52 +09:00

latencytop.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

lglock.c

brlocks/lglocks: turn into functions

2012-05-29 23:28:41 -04:00

lockdep_internals.h

lockdep: No need to disable preemption in debug atomic ops

2010-05-04 05:38:16 +02:00

lockdep_proc.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

lockdep_states.h

…

lockdep.c

lockdep: Check if nested lock is actually held

2012-09-13 17:00:44 +02:00

Makefile

Makefile: Documentation for external tool should be correct

2012-10-25 16:00:53 -07:00

modsign_pubkey.c

MODSIGN: Provide module signing public keys to the kernel

2012-10-10 20:01:22 +10:30

module_signing.c

module_signing: fix printk format warning

2012-10-22 08:56:34 +03:00

module-internal.h

MODSIGN: Move the magic string to the end of a module and eliminate the search

2012-10-19 17:30:40 -07:00

module.c

MODSIGN: Move the magic string to the end of a module and eliminate the search

2012-10-19 17:30:40 -07:00

mutex-debug.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mutex-debug.h

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

mutex.c

sched/rt: Use schedule_preempt_disabled()

2012-03-01 10:28:03 +01:00

mutex.h

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

notifier.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

nsproxy.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

padata.c

padata: Fix cpu hotplug

2012-03-29 19:52:46 +08:00

panic.c

panic: fix a possible deadlock in panic()

2012-07-30 17:25:13 -07:00

params.c

params: replace printk(KERN_<LVL>...) with pr_<lvl>(...)

2012-05-04 17:28:18 -07:00

pid_namespace.c

pidns: limit the nesting depth of pid namespaces

2012-10-25 14:37:53 -07:00

pid.c

net ip6 flowlabel: Make owner a union of struct pid * and kuid_t

2012-08-14 21:49:25 -07:00

posix-cpu-timers.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

posix-timers.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

printk.c

printk: Fix scheduling-while-atomic problem in console_cpu_notify()

2012-10-16 18:17:44 -07:00

profile.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

ptrace.c

ptrace: mark __ptrace_may_access() static

2012-08-03 14:47:17 +10:00

range.c

range: fix bogus misuse of module.h to get printk()

2011-10-31 09:20:11 -04:00

rcu.h

rcu: Allow nesting of rcu_idle_enter() and rcu_idle_exit()

2012-02-21 09:06:12 -08:00

rcupdate.c

rcu: Add PROVE_RCU_DELAY to provoke difficult races

2012-09-23 07:42:49 -07:00

rcutiny_plugin.h

rcu: Move TINY_PREEMPT_RCU away from raw_local_irq_save()

2012-09-23 07:42:51 -07:00

rcutiny.c

rcu: Move TINY_RCU quiescent state out of extended quiescent state

2012-09-23 07:42:52 -07:00

rcutorture.c

rcu: Prevent initialization race in rcutorture kthreads

2012-09-23 07:42:23 -07:00

rcutree_plugin.h

rcu: Make RCU_FAST_NO_HZ handle adaptive ticks

2012-09-26 15:44:02 +02:00

rcutree_trace.c

Merge remote-tracking branch 'tip/smp/hotplug' into next.2012.09.25b

2012-09-25 10:01:45 -07:00

rcutree.c

rcu: Grace-period initialization excludes only RCU notifier

2012-10-08 09:06:38 -07:00

rcutree.h

rcu: Grace-period initialization excludes only RCU notifier

2012-10-08 09:06:38 -07:00

relay.c

splice: fix racy pipe->buffers uses

2012-06-13 21:16:42 +02:00

res_counter.c

rescounters: add res_counter_uncharge_until()

2012-05-29 16:22:27 -07:00

resource.c

kernel/resource.c: fix stack overflow in __reserve_region_with_split()

2012-10-06 03:05:31 +09:00

rtmutex_common.h

rtmutex: Simplify PI algorithm and make highest prio task get lock

2011-01-27 21:13:51 -05:00

rtmutex-debug.c

lockdep, rtmutex, bug: Show taint flags on error

2011-12-06 08:16:49 +01:00

rtmutex-debug.h

…

rtmutex-tester.c

rtmutex-tester: convert sysdev_class to a regular subsystem

2011-12-14 14:54:22 -08:00

rtmutex.c

Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"

2011-12-11 10:33:18 -08:00

rtmutex.h

…

rwsem.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

seccomp.c

seccomp: fix build warnings when there is no CONFIG_SECCOMP_FILTER

2012-04-18 12:24:52 +10:00

semaphore.c

semaphore: fix improper comment reference to mutex

2012-04-05 17:15:55 -07:00

signal.c

freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()

2012-10-26 14:27:49 -07:00

smp.c

smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]()

2012-06-05 17:27:14 +02:00

smpboot.c

hotplug: Fix UP bug in smpboot hotplug code

2012-08-13 17:01:07 +02:00

smpboot.h

smpboot: Provide infrastructure for percpu hotplug threads

2012-08-13 17:01:07 +02:00

softirq.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-10-01 10:43:39 -07:00

spinlock.c

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

srcu.c

workqueue: deprecate system_nrt[_freezable]_wq

2012-08-20 14:51:24 -07:00

stacktrace.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

stop_machine.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

sys_ni.c

syscalls, x86: add __NR_kcmp syscall

2012-05-31 17:49:32 -07:00

sys.c

use clamp_t in UNAME26 fix

2012-10-19 18:51:17 -07:00

sysctl_binary.c

mm: prepare for removal of obsolete /proc/sys/vm/nr_pdflush_threads

2012-07-31 18:42:40 -07:00

sysctl.c

Kconfig: clean up the "#if defined(arch)" list for exception-trace sysctl entry

2012-10-09 16:22:14 +09:00

task_work.c

task_work: task_work_add() should not succeed after exit_task_work()

2012-09-13 16:47:34 +02:00

taskstats.c

taskstats: cgroupstats_user_cmd() may leak on error

2012-10-06 03:05:31 +09:00

test_kprobes.c

kprobes: Fix selftest to clear flags field for reusing probes

2010-10-14 08:55:27 +02:00

time.c

time: Move update_vsyscall definitions to timekeeper_internal.h

2012-09-24 12:38:06 -04:00

timeconst.pl

…

timer.c

timers: Fix endless looping between cascade() and internal_add_timer()

2012-10-09 21:27:14 +02:00

tracepoint.c

static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()

2012-02-24 10:05:59 +01:00

tsacct.c

userns: Convert taskstats to handle the user and pid namespaces.

2012-09-18 01:01:32 -07:00

uid16.c

userns: Convert setting and getting uid and gid system calls to use kuid and kgid

2012-05-03 03:28:41 -07:00

up.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user_namespace.c

userns: Add kprojid_t and associated infrastructure in projid.h

2012-09-18 01:01:37 -07:00

user-return-notifier.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user.c

userns: Add kprojid_t and associated infrastructure in projid.h

2012-09-18 01:01:37 -07:00

utsname_sysctl.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

utsname.c

userns: Use cred->user_ns instead of cred->user->user_ns

2012-04-07 16:55:51 -07:00

wait.c

lockdep/waitqueues: Add better annotation

2011-12-21 10:07:39 +01:00

watchdog.c

watchdog: Use hotplug thread infrastructure

2012-08-13 17:01:07 +02:00

workqueue_sched.h

workqueue: implement concurrency managed dynamic worker pool

2010-06-29 10:07:14 +02:00

workqueue.c

workqueue: cancel_delayed_work() should return %false if work item is idle

2012-10-24 12:38:16 -07:00