Tejun Heo 10265075aa cgroup: make cgroup_update_dfl_csses() migrate all target processes atomically ... cgroup_update_dfl_csses() is responsible for migrating processes when controllers are enabled or disabled on the default hierarchy. As the css association changes for all the processes in the affected cgroups, this involves migrating multiple processes. Up until now, it was implemented by migrating process-by-process until the source css_sets are empty; however, this means that if a process fails to migrate after some succeed before it, the recovery is very tricky. This was considered okay as subsystems weren't allowed to reject process migration on the default hierarchy; unfortunately, enforcing this policy turned out to be problematic for certain types of resources - realtime slices for now. As such, the default hierarchy is gonna allow restricted failures during migration and to support that this patch makes cgroup_update_dfl_csses() migrate all target processes atomically rather than one-by-one. The preceding patches made subsystems ready for multi-process migration and factored out taskset operations making this almost trivial. All tasks of the target processes are put in the same taskset and the migration operations are performed once which either fails or succeeds for all. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Zefan Li <lizefan@huawei.com>		2015-09-22 12:46:53 -04:00
..
bpf	bpf: fix out of bounds access in verifier log	2015-09-09 14:11:55 -07:00
configs
debug
events	kexec: split kexec_load syscall from kexec core code	2015-09-10 13:29:01 -07:00
gcov	gcov: add support for GCC 5.1	2015-06-30 19:44:57 -07:00
irq	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-01 14:33:35 -07:00
livepatch	livepatch: Improve error handling in klp_disable_func()	2015-07-14 22:48:06 +02:00
locking	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-09-05 20:34:28 -07:00
power	Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block	2015-09-02 13:10:25 -07:00
printk	kexec: split kexec_load syscall from kexec core code	2015-09-10 13:29:01 -07:00
rcu	rcu,locking: Privatize smp_mb__after_unlock_lock()	2015-08-04 08:49:21 -07:00
sched	userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key	2015-09-04 16:54:41 -07:00
time	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-01 14:04:50 -07:00
trace	Mostly this is just clean ups and micro optimizations.	2015-09-08 14:04:14 -07:00
.gitignore
acct.c
async.c
audit_fsnotify.c	audit: clean simple fsnotify implementation	2015-08-06 16:14:53 -04:00
audit_tree.c	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-09-08 13:34:59 -07:00
audit_watch.c	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-09-08 13:34:59 -07:00
audit.c	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-09-08 13:34:59 -07:00
audit.h	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-09-08 13:34:59 -07:00
auditfilter.c	audit: implement audit by executable	2015-08-06 16:17:25 -04:00
auditsc.c	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-09-08 13:34:59 -07:00
backtracetest.c
bounds.c
capability.c
cgroup_freezer.c	cgroup: allow a cgroup subsystem to reject a fork	2015-07-14 17:29:23 -04:00
cgroup_pids.c	cgroup: pids: fix invalid get/put usage	2015-08-25 14:19:25 -04:00
cgroup.c	cgroup: make cgroup_update_dfl_csses() migrate all target processes atomically	2015-09-22 12:46:53 -04:00
compat.c
configs.c
context_tracking.c
cpu_pm.c	kernel/cpu_pm: fix cpu_cluster_pm_exit comment	2015-09-03 02:42:20 +02:00
cpu.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-08-31 20:26:22 -07:00
cpuset.c	cgroup, memcg, cpuset: implement cgroup_taskset_for_each_leader()	2015-09-22 12:46:53 -04:00
crash_dump.c
cred.c	kernel/cred.c: remove unnecessary kdebug atomic reads	2015-09-10 13:29:01 -07:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	kernel: exit: fix typo in comment	2015-08-07 13:59:49 +02:00
extable.c	kernel/extable.c: remove duplicated include	2015-09-10 13:29:01 -07:00
fork.c	sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem	2015-09-16 12:53:17 -04:00
freezer.c
futex_compat.c
futex.c	futex: Make should_fail_futex() static	2015-07-20 21:43:54 +02:00
groups.c
hung_task.c
irq_work.c
jump_label.c	locking/static_keys: Add selftest	2015-08-03 11:34:16 +02:00
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec_core.c	kexec: export KERNEL_IMAGE_SIZE to vmcoreinfo	2015-09-10 13:29:01 -07:00
kexec_file.c	kexec: split kexec_file syscall code to kexec_file.c	2015-09-10 13:29:01 -07:00
kexec_internal.h	kexec: split kexec_file syscall code to kexec_file.c	2015-09-10 13:29:01 -07:00
kexec.c	kexec: split kexec_load syscall from kexec core code	2015-09-10 13:29:01 -07:00
kmod.c	kmod: handle UMH_WAIT_PROC from system unbound workqueue	2015-09-10 13:29:01 -07:00
kprobes.c	perf/x86/hw_breakpoints: Disallow kernel breakpoints unless kprobe-safe	2015-08-04 10:16:54 +02:00
ksysfs.c	kexec: split kexec_load syscall from kexec core code	2015-09-10 13:29:01 -07:00
kthread.c	kernel/kthread.c:kthread_create_on_node(): clarify documentation	2015-09-04 16:54:41 -07:00
latencytop.c
Makefile	sys_membarrier(): system-wide memory barrier (generic, x86)	2015-09-11 15:21:34 -07:00
membarrier.c	sys_membarrier(): system-wide memory barrier (generic, x86)	2015-09-11 15:21:34 -07:00
memremap.c	add devm_memremap_pages	2015-08-27 19:40:58 -04:00
module_signing.c	PKCS#7: Appropriately restrict authenticated attributes and content type	2015-08-12 17:01:01 +01:00
module-internal.h
module.c	module: weaken locking assertion for oops path.	2015-07-29 06:13:22 +09:30
notifier.c	Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-01 08:40:25 -07:00
nsproxy.c
padata.c
panic.c	kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path	2015-06-30 19:44:57 -07:00
params.c	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
pid_namespace.c
pid.c	rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN()	2015-07-22 15:27:32 -07:00
profile.c	mm: rename alloc_pages_exact_node() to __alloc_pages_node()	2015-09-08 15:35:28 -07:00
ptrace.c	seccomp: add ptrace options for suspend/resume	2015-07-15 11:52:52 -07:00
range.c
reboot.c	kexec: split kexec_load syscall from kexec core code	2015-09-10 13:29:01 -07:00
relay.c	kernel/relay.c: use kvfree() in relay_free_page_array()	2015-06-30 19:44:59 -07:00
resource.c	mm: enhance region_is_ram() to region_intersects()	2015-08-10 23:07:05 -04:00
seccomp.c	Merge tag 'seccomp-next' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into next	2015-07-20 17:19:19 +10:00
signal.c	signal: fix information leak in copy_siginfo_to_user	2015-08-07 04:39:40 +03:00
smp.c
smpboot.c	smpboot: allow passing the cpumask on per-cpu thread registration	2015-09-04 16:54:41 -07:00
smpboot.h
softirq.c
stacktrace.c
stop_machine.c	stop_machine: Remove cpu_stop_work's from list in cpu_stop_park()	2015-08-03 12:21:28 +02:00
sys_ni.c	sys_membarrier(): system-wide memory barrier (generic, x86)	2015-09-11 15:21:34 -07:00
sys.c	vfs: Commit to never having exectuables on proc and sysfs.	2015-07-10 10:39:25 -05:00
sysctl_binary.c
sysctl.c	sysctl: fix int -> unsigned long assignments in INT_MIN case	2015-09-10 13:29:01 -07:00
task_work.c	task_work: remove fifo ordering guarantee	2015-09-05 13:46:58 -07:00
taskstats.c
test_kprobes.c
torture.c
tracepoint.c
tsacct.c
uid16.c
up.c
user_namespace.c	capabilities: ambient capabilities	2015-09-04 16:54:41 -07:00
user-return-notifier.c
user.c
utsname_sysctl.c
utsname.c
watchdog.c	watchdog: rename watchdog_suspend() and watchdog_resume()	2015-09-04 16:54:41 -07:00
workqueue_internal.h
workqueue.c	Merge branch 'for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2015-09-02 08:02:20 -07:00