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android_kernel_google_msm/kernel
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Thomas Gleixner 7f8c125206 smpboot: Provide infrastructure for percpu hotplug threads 
Provide a generic interface for setting up and tearing down percpu
threads.

On registration the threads for already online cpus are created and
started. On deregistration (modules) the threads are stoppped.

During hotplug operations the threads are created, started, parked and
unparked. The datastructure for registration provides a pointer to
percpu storage space and optional setup, cleanup, park, unpark
functions. These functions are called when the thread state changes.

Each implementation has to provide a function which is queried and
returns whether the thread should run and the thread function itself.

The core code handles all state transitions and avoids duplicated code
in the call sites.

[ paulmck: Preemption leak fix ]

Change-Id: Ibd0993d9e7f95c47aee75836632b2cb950aa777c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20120716103948.352501068@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-29 23:12:39 +08:00
..
debug debug: add parameters to prevent entering debug mode on errors 2012-05-18 17:03:10 -07:00
events FROMLIST: security,perf: Allow further restriction of perf_event_open 2016-06-20 19:00:29 +00:00
gcov
irq random: remove rand_initialize_irq() 2013-09-09 17:01:42 -07:00
power Power: Changes the permission to read only for sysfs file 2014-08-05 19:00:47 +00:00
sched smp: Provide generic idle thread allocation 2016-10-29 23:12:38 +08:00
time tick: Cleanup NOHZ per cpu data on cpu down 2016-10-29 23:12:18 +08:00
trace tracing/syscalls: Ignore numbers outside NR_syscalls' range 2016-10-29 23:12:11 +08:00
.gitignore kernel/hz.bc: ignore. 2016-10-29 23:12:15 +08:00
acct.c Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-01-08 12:19:57 -08:00
async.c kernel/async: remove redundant declaration. 2012-01-13 09:32:18 +10:30
audit.c constify path argument of audit_log_d_path() 2012-03-20 21:29:40 -04:00
audit.h audit: remove AUDIT_SETUP_CONTEXT as it isn't used 2012-01-17 16:16:57 -05:00
audit_tree.c VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors 2015-07-13 11:17:46 -07:00
audit_watch.c
auditfilter.c audit: allow interfield comparison in audit rules 2012-01-17 16:17:01 -05:00
auditsc.c seccomp: remove duplicated failure logging 2014-10-31 19:46:13 -07:00
backtracetest.c
bounds.c
capability.c Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call" 2012-01-17 10:19:41 -08:00
cgroup.c cgroup: remove synchronize_rcu() from cgroup_attach_{task|proc}() 2014-12-01 16:09:15 -08:00
cgroup_freezer.c cgroup: remove cgroup_subsys argument from callbacks 2012-02-02 09:20:22 -08:00
compat.c compat: Fix RT signal mask corruption via sigprocmask 2012-05-10 08:58:33 -07:00
configs.c
cpu.c smpboot: Provide infrastructure for percpu hotplug threads 2016-10-29 23:12:39 +08:00
cpu_pm.c
cpuset.c Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 2012-04-02 08:53:24 -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 Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
elfcore.c
exec_domain.c
exit.c flo: Put device-specific code behind #ifndef CONFIG_UML. 2015-05-20 15:22:06 +09:00
extable.c
fork.c introduce for_each_thread() to replace the buggy while_each_thread() 2014-10-31 19:46:30 -07:00
freezer.c freezer: skip waking up tasks with PF_FREEZER_SKIP set 2013-07-12 14:22:56 -07:00
futex.c futex: Make lookup_pi_state more robust 2014-06-11 15:16:22 -07:00
futex_compat.c futex: Mark get_robust_list as deprecated 2012-03-29 11:37:17 +02:00
groups.c
hrtimer.c hrtimer: Prevent remote enqueue of leftmost timers 2016-10-29 23:12:34 +08:00
hung_task.c hung_task: fix the broken rcu_lock_break() logic 2012-03-05 15:49:42 -08:00
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 static keys: Inline the static_key_enabled() function 2012-02-28 20:01:08 +01:00
kallsyms.c vsprintf: Fix %ps on non symbols when using kallsyms 2013-02-08 15:14:22 -08:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage 2012-03-23 13:18:57 +01:00
Kconfig.preempt locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage 2012-03-23 13:18:57 +01:00
kexec.c Merge branch 'akpm' (Andrew's patch-bomb) 2012-03-28 17:19:28 -07:00
kfifo.c
kmod.c PM / Sleep: Mitigate race between the freezer and request_firmware() 2012-03-28 23:30:28 +02:00
kprobes.c kprobes: return proper error code from register_kprobe() 2012-03-05 15:49:42 -08:00
ksysfs.c rcu: Add a module parameter to force use of expedited RCU primitives 2016-10-29 23:12:17 +08:00
kthread.c kthread: Implement park/unpark facility 2016-10-29 23:12:39 +08:00
latencytop.c
lglock.c brlocks/lglocks: turn into functions 2015-07-13 11:17:40 -07:00
lockdep.c lockdep: remove task argument from debug_check_no_locks_held 2013-07-12 14:22:56 -07:00
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
Makefile smp: Add generic smpboot facility 2016-10-29 23:12:38 +08:00
module.c module: Remove module size limit 2012-03-26 12:50:53 +10:30
mutex-debug.c
mutex-debug.h
mutex.c sched/rt: Use schedule_preempt_disabled() 2012-03-01 10:28:03 +01:00
mutex.h
notifier.c
nsproxy.c vfs: Add a user namespace reference from struct mnt_namespace 2015-07-13 11:17:54 -07:00
padata.c padata: Fix cpu hotplug 2012-03-29 19:52:46 +08:00
panic.c panic: resume console if panic after console suspend. 2013-09-09 17:16:14 -07:00
params.c params: <level>_initcall-like kernel parameters 2012-03-26 12:50:51 +10:30
pid.c proc: Usable inode numbers for the namespace file descriptors. 2015-07-13 11:18:01 -07:00
pid_namespace.c proc: Usable inode numbers for the namespace file descriptors. 2015-07-13 11:18:01 -07:00
posix-cpu-timers.c [S390] cputime: add sparse checking and cleanup 2011-12-15 14:56:19 +01:00
posix-timers.c
printk.c flo: Put device-specific code behind #ifndef CONFIG_UML. 2015-05-20 15:22:06 +09:00
profile.c
ptrace.c __ptrace_may_access() should not deny sub-threads 2016-10-29 23:12:26 +08:00
range.c
rcu.h rcu: Add a module parameter to force use of expedited RCU primitives 2016-10-29 23:12:17 +08:00
rcupdate.c rcu: Make exit_rcu() more precise and consolidate 2016-10-29 23:12:17 +08:00
rcutiny.c rcu: Add RCU_NONIDLE() for idle-loop RCU read-side critical sections 2012-02-21 09:06:13 -08:00
rcutiny_plugin.h rcu: Make exit_rcu() more precise and consolidate 2016-10-29 23:12:17 +08:00
rcutorture.c PTR_ERR should be called before its argument is cleared. 2012-02-21 09:06:10 -08:00
rcutree.c rcu: Yield simpler 2016-10-29 23:12:39 +08:00
rcutree.h rcu: Yield simpler 2016-10-29 23:12:39 +08:00
rcutree_plugin.h rcu: Yield simpler 2016-10-29 23:12:39 +08:00
rcutree_trace.c rcu: Make rcu_barrier() less disruptive 2016-10-29 23:12:18 +08:00
relay.c relay: prevent integer overflow in relay_open() 2012-02-10 09:04:49 +01:00
res_counter.c net: introduce res_counter_charge_nofail() for socket allocations 2012-01-22 15:08:46 -05:00
resource.c kernel: Restrict permissions of /proc/iomem. 2016-06-03 11:56:04 -07:00
rtmutex-debug.c
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
rtmutex.h
rtmutex_common.h
rwsem.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
seccomp.c seccomp: Use atomic operations that are present in kernel 3.4. 2014-10-31 19:46:31 -07:00
semaphore.c
signal.c signal, x86: add SIGSYS info and make it synchronous. 2014-10-31 19:46:15 -07:00
smp.c smp, idle: Allocate idle thread for each possible cpu during boot 2016-10-29 23:12:38 +08:00
smpboot.c smpboot: Provide infrastructure for percpu hotplug threads 2016-10-29 23:12:39 +08:00
smpboot.h smpboot: Provide infrastructure for percpu hotplug threads 2016-10-29 23:12:39 +08:00
softirq.c softirq: reduce latencies 2016-10-29 23:12:18 +08:00
spinlock.c locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage 2012-03-23 13:18:57 +01:00
srcu.c rcu: Call out dangers of expedited RCU primitives 2012-02-21 09:06:08 -08:00
stacktrace.c
stop_machine.c
sys.c prctl: make PR_SET_TIMERSLACK_PID pid namespace aware 2016-10-29 23:12:27 +08:00
sys_ni.c seccomp: add "seccomp" syscall 2014-10-31 19:46:27 -07:00
sysctl.c pipe: limit the per-user amount of pages allocated in pipes 2016-10-29 23:12:35 +08:00
sysctl_binary.c msm: 8x55: put reason for boot in procfs from SMEM 2013-02-08 15:14:28 -08:00
taskstats.c
test_kprobes.c
time.c jiffies: Fix timeval conversion to jiffies 2016-10-29 23:12:15 +08:00
timeconst.bc kernel: Replace timeconst.pl with a bc script 2016-10-29 23:12:15 +08:00
timer.c timer: Fix mod_timer_pinned() header comment 2016-10-29 23:12:18 +08:00
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 [S390] cputime: add sparse checking and cleanup 2011-12-15 14:56:19 +01:00
uid16.c
up.c
user-return-notifier.c
user.c proc: Usable inode numbers for the namespace file descriptors. 2015-07-13 11:18:01 -07:00
user_namespace.c proc: Usable inode numbers for the namespace file descriptors. 2015-07-13 11:18:01 -07:00
utsname.c proc: Usable inode numbers for the namespace file descriptors. 2015-07-13 11:18:01 -07:00
utsname_sysctl.c
wait.c lockdep/waitqueues: Add better annotation 2011-12-21 10:07:39 +01:00
watchdog.c kernel/watchdog.c: add comment to watchdog() exit path 2012-03-23 16:58:32 -07:00
workqueue.c workqueue: skip nr_running sanity check in worker_enter_idle() if trustee is active 2013-03-04 12:48:24 -08:00
workqueue_sched.h