Lai Jiangshan d6e81d4f7b sched: Fix hotplug vs. set_cpus_allowed_ptr() ... commit 6acbfb9697 upstream. Lai found that: WARNING: CPU: 1 PID: 13 at arch/x86/kernel/smp.c:124 native_smp_send_reschedule+0x2d/0x4b() ... migration_cpu_stop+0x1d/0x22 was caused by set_cpus_allowed_ptr() assuming that cpu_active_mask is always a sub-set of cpu_online_mask. This isn't true since 5fbd036b55 ("sched: Cleanup cpu_active madness"). So set active and online at the same time to avoid this particular problem. Fixes: 5fbd036b55 ("sched: Cleanup cpu_active madness") Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michael wang <wangyun@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Toshi Kani <toshi.kani@hp.com> Link: http://lkml.kernel.org/r/53758B12.8060609@cn.fujitsu.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-06-11 12:04:11 -07:00
..
debug	kdb,vt_console: Fix missed data due to pager overruns	2012-10-21 09:27:59 -07:00
events	perf: Fix race in removing an event	2014-06-11 12:04:11 -07:00
gcov
irq	genirq: Remove racy waitqueue_active check	2014-03-23 21:37:05 -07:00
power	PM / Hibernate: Hibernate/thaw fixes/improvements	2014-02-20 10:45:33 -08:00
sched	sched: Fix hotplug vs. set_cpus_allowed_ptr()	2014-06-11 12:04:11 -07:00
time	time: Fix overflow when HZ is smaller than 60	2014-02-22 10:32:46 -08:00
trace	tracing: Keep overwrite in sync between regular and snapshot buffers	2014-06-07 16:02:04 -07:00
.gitignore
acct.c
async.c	Fix a dead loop in async_synchronize_full()	2012-10-02 10:30:35 -07:00
audit.c	audit: wait_for_auditd() should use TASK_UNINTERRUPTIBLE	2014-04-14 06:44:15 -07:00
audit.h
audit_tree.c	kernel/audit_tree.c: tree will leak memory when failure occurs in audit_trim_trees()	2013-05-11 13:48:14 -07:00
audit_watch.c
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cgroup.c	cgroup: cgroup_subsys->fork() should be called after the task is added to css_set	2014-03-11 16:10:03 -07:00
cgroup_freezer.c	cgroup: cgroup_subsys->fork() should be called after the task is added to css_set	2014-03-11 16:10:03 -07:00
compat.c	compat: Fix RT signal mask corruption via sigprocmask	2012-05-10 08:58:33 -07:00
configs.c
cpu.c	sched: Fix hotplug vs. set_cpus_allowed_ptr()	2014-06-11 12:04:11 -07:00
cpu_pm.c
cpuset.c	cpuset: fix a race condition in __cpuset_node_allowed_softwall()	2014-03-23 21:37:05 -07:00
crash_dump.c
cred.c	cred: copy_process() should clear child->replacement_session_keyring	2012-04-11 08:20:11 -07:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	wait: fix reparent_leader() vs EXIT_DEAD->EXIT_ZOMBIE race	2014-04-26 17:13:20 -07:00
extable.c
fork.c	cgroup: cgroup_subsys->fork() should be called after the task is added to css_set	2014-03-11 16:10:03 -07:00
freezer.c
futex.c	futex: Make lookup_pi_state more robust	2014-06-07 16:02:16 -07:00
futex_compat.c	futex: Revert "futex: Mark get_robust_list as deprecated"	2013-02-28 06:59:01 -08:00
groups.c
hrtimer.c	hrtimer: Set expiry time before switch_hrtimer_base()	2014-06-07 16:02:01 -07:00
hung_task.c
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
kallsyms.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c
kfifo.c
kmod.c	usermodehelper: check subprocess_info->path != NULL	2013-05-19 10:54:50 -07:00
kprobes.c
ksysfs.c
kthread.c	kthread_worker: reimplement flush_kthread_work() to allow freeing the work item being executed	2012-10-02 10:30:40 -07:00
latencytop.c
lockdep.c
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
Makefile
module.c	ftrace/module: Hardcode ftrace_module_init() call into load_module()	2014-06-07 16:02:00 -07:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
nsproxy.c
padata.c
panic.c	panic: fix a possible deadlock in panic()	2013-04-12 09:38:47 -07:00
params.c
pid.c
pid_namespace.c
posix-cpu-timers.c	posix-cpu-timers: Fix nanosleep task_struct leak	2013-02-28 06:58:59 -08:00
posix-timers.c	posix-timer: Don't call idr_find() with out-of-range ID	2013-03-04 06:06:38 +08:00
printk.c	printk: Fix rq->lock vs logbuf_lock unlock lock inversion	2014-04-14 06:44:16 -07:00
profile.c
ptrace.c	exec/ptrace: fix get_dumpable() incorrect tests	2013-11-29 10:50:34 -08:00
range.c
rcu.h
rcupdate.c
rcutiny.c
rcutiny_plugin.h
rcutorture.c
rcutree.c	rcu: Fix batch-limit size problem	2012-12-17 10:37:46 -08:00
rcutree.h
rcutree_plugin.h
rcutree_trace.c
relay.c	splice: fix racy pipe->buffers uses	2012-07-16 09:04:42 -07:00
res_counter.c
resource.c	kernel/resource.c: fix stack overflow in __reserve_region_with_split()	2013-02-14 10:48:53 -08:00
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rtmutex_common.h
rwsem.c
seccomp.c
semaphore.c
signal.c	kernel/signal.c: stop info leak via the tkill and the tgkill syscalls	2013-04-25 21:19:54 -07:00
smp.c	smp: Fix SMP function call empty cpu mask race	2013-02-03 18:24:42 -06:00
softirq.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys.c	reboot: rigrate shutdown/reboot to boot cpu	2013-06-20 11:58:45 -07:00
sys_ni.c
sysctl.c	hung_task: check the value of "sysctl_hung_task_timeout_sec"	2014-05-06 07:51:45 -07:00
sysctl_binary.c	sysctl: fix null checking in bin_dn_node_address()	2013-03-04 06:06:41 +08:00
taskstats.c
test_kprobes.c
time.c
timeconst.pl	timeconst.pl: Eliminate Perl warning	2013-02-28 06:58:58 -08:00
timer.c	timer: Prevent overflow in apply_slack	2014-06-07 16:02:00 -07:00
tracepoint.c	tracepoint: Do not waste memory on mods with no tracepoints	2014-05-18 05:25:56 -07:00
tsacct.c
uid16.c
up.c
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
wait.c
watchdog.c	watchdog: using u64 in get_sample_period()	2012-12-03 11:47:17 -08:00
workqueue.c	workqueue: cond_resched() after processing each work item	2014-04-14 06:44:16 -07:00
workqueue_sched.h