Tejun Heo 02bb586372 cpuset: schedule hotplug propagation from cpuset_attach() if the cpuset is empty ... cpuset is scheduled to be decoupled from cgroup_lock which will make hotplug handling race with task migration. cpus or mems will be allowed to go offline between ->can_attach() and ->attach(). If hotplug takes down all cpus or mems of a cpuset while attach is in progress, ->attach() may end up putting tasks into an empty cpuset. This patchset makes ->attach() schedule hotplug propagation if the cpuset is empty after attaching is complete. This will move the tasks to the nearest ancestor which can execute and the end result would be as if hotplug handling happened after the tasks finished attaching. cpuset_write_resmask() now also flushes cpuset_propagate_hotplug_wq to wait for propagations scheduled directly by cpuset_attach(). This currently doesn't make any functional difference as everything is protected by cgroup_mutex but enables decoupling the locking. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>		2013-01-07 08:51:08 -08:00
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debug	…
events	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-12-17 15:44:47 -08:00
gcov	…
irq	irq: tsk->comm is an array	2012-12-18 15:02:11 -08:00
power	…
sched	sched: numa: ksm: fix oops in task_numa_placment()	2012-12-20 07:06:56 -08:00
time	Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-12-13 15:31:08 -08:00
trace	Merge branch 'tip/perf/core-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace	2012-12-18 12:28:39 -08:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	Nothing all that exciting; a new module-from-fd syscall for those who want	2012-12-19 07:55:08 -08:00
acct.c	…
async.c	…
audit.c	…
audit.h	…
audit_tree.c	…
audit_watch.c	Merge branch 'for-next' of git://git.infradead.org/users/eparis/notify	2012-12-20 20:11:52 -08:00
auditfilter.c	…
auditsc.c	…
backtracetest.c	…
bounds.c	…
capability.c	…
cgroup.c	cgroup: implement cgroup_rightmost_descendant()	2013-01-07 08:50:28 -08:00
cgroup_freezer.c	…
compat.c	compat: generic compat_sys_sched_rr_get_interval() implementation	2012-12-17 17:15:18 -08:00
configs.c	…
context_tracking.c	…
cpu.c	…
cpu_pm.c	…
cpuset.c	cpuset: schedule hotplug propagation from cpuset_attach() if the cpuset is empty	2013-01-07 08:51:08 -08:00
crash_dump.c	…
cred.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-12-18 10:55:28 -08:00
delayacct.c	…
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-12-17 15:44:47 -08:00
extable.c	…
fork.c	pidns: Outlaw thread creation after unshare(CLONE_NEWPID)	2012-12-24 22:53:14 -08:00
freezer.c	…
futex.c	…
futex_compat.c	…
groups.c	…
hrtimer.c	…
hung_task.c	…
irq_work.c	…
itimer.c	…
jump_label.c	…
kallsyms.c	…
kcmp.c	kcmp: include linux/ptrace.h	2012-12-20 17:40:19 -08:00
kexec.c	…
kfifo.c	…
kmod.c	Bury the conditionals from kernel_thread/kernel_execve series	2012-12-19 18:07:38 -05:00
kprobes.c	…
ksysfs.c	…
kthread.c	…
latencytop.c	…
lglock.c	…
lockdep.c	…
lockdep_internals.h	…
lockdep_proc.c	…
lockdep_states.h	…
modsign_certificate.S	MODSIGN: Avoid using .incbin in C source	2012-12-14 13:06:44 +10:30
modsign_pubkey.c	keys: use keyring_alloc() to create module signing keyring	2012-12-20 17:40:21 -08:00
module-internal.h	…
module.c	Nothing all that exciting; a new module-from-fd syscall for those who want	2012-12-19 07:55:08 -08:00
module_signing.c	…
mutex-debug.c	…
mutex-debug.h	…
mutex.c	…
mutex.h	…
notifier.c	…
nsproxy.c	…
padata.c	…
panic.c	…
params.c	…
pid.c	pidns: Stop pid allocation when init dies	2012-12-25 16:10:05 -08:00
pid_namespace.c	pidns: Stop pid allocation when init dies	2012-12-25 16:10:05 -08:00
posix-cpu-timers.c	A few /dev/random improvements for the v3.8 merge window.	2012-12-19 20:23:37 -08:00
posix-timers.c	…
printk.c	printk: boot_delay should only affect output	2012-12-17 17:15:13 -08:00
profile.c	…
ptrace.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-12-17 20:58:12 -08:00
range.c	…
rcu.h	…
rcupdate.c	…
rcutiny.c	…
rcutiny_plugin.h	…
rcutorture.c	…
rcutree.c	…
rcutree.h	…
rcutree_plugin.h	…
rcutree_trace.c	…
relay.c	…
res_counter.c	res_counter: return amount of charges after res_counter_uncharge()	2012-12-18 15:02:12 -08:00
resource.c	…
rtmutex-debug.c	…
rtmutex-debug.h	…
rtmutex-tester.c	…
rtmutex.c	…
rtmutex.h	…
rtmutex_common.h	…
rwsem.c	…
seccomp.c	…
semaphore.c	…
signal.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-12-20 18:05:28 -08:00
smp.c	…
smpboot.c	…
smpboot.h	…
softirq.c	…
spinlock.c	…
srcu.c	…
stacktrace.c	…
stop_machine.c	…
sys.c	…
sys_ni.c	module: add syscall to load module from fd	2012-12-14 13:05:22 +10:30
sysctl.c	Automatic NUMA Balancing V11	2012-12-16 15:18:08 -08:00
sysctl_binary.c	…
task_work.c	…
taskstats.c	…
test_kprobes.c	…
time.c	…
timeconst.pl	…
timer.c	…
tracepoint.c	…
tsacct.c	…
uid16.c	…
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	userns: Fix typo in description of the limitation of userns_install	2012-12-14 18:36:36 -08:00
utsname.c	userns: Require CAP_SYS_ADMIN for most uses of setns.	2012-12-14 16:12:03 -08:00
utsname_sysctl.c	…
wait.c	…
watchdog.c	watchdog: Fix disable/enable regression	2012-12-19 12:10:33 -08:00
workqueue.c	…
workqueue_sched.h	…