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Thomas Gleixner bb6eddf767 clockevents: Prevent clockevent_devices list corruption on cpu hotplug 
Xiaotian Feng triggered a list corruption in the clock events list on
CPU hotplug and debugged the root cause.

If a CPU registers more than one per cpu clock event device, then only
the active clock event device is removed on CPU_DEAD. The unused
devices are kept in the clock events device list.

On CPU up the clock event devices are registered again, which means
that we list_add an already enqueued list_head. That results in list
corruption.

Resolve this by removing all devices which are associated to the dead
CPU on CPU_DEAD.

Reported-by: Xiaotian Feng <dfeng@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Xiaotian Feng <dfeng@redhat.com>
Cc: stable@kernel.org
2009-12-11 10:28:08 +01:00
..
gcov
microblaze: Enable GCOV_PROFILE_ALL
2009-09-21 14:29:21 +02:00
irq
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2009-12-09 19:43:33 -08:00
power
PM / Runtime: Export the PM runtime workqueue
2009-12-06 16:17:56 +01:00
time
clockevents: Prevent clockevent_devices list corruption on cpu hotplug
2009-12-11 10:28:08 +01:00
trace
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-05 15:30:21 -08:00
.gitignore
…
acct.c
bsdacct: switch credentials for writing to the accounting file
2009-08-24 11:33:40 +10:00
async.c
async: Fix lack of boot-time console due to insufficient synchronization
2009-06-08 12:31:53 -07:00
audit_tree.c
Fix rule eviction order for AUDIT_DIR
2009-06-24 00:02:38 -04:00
audit_watch.c
Audit: reorganize struct audit_watch to save 8 bytes
2009-09-24 03:50:25 -04:00
audit.c
Audit: send signal info if selinux is disabled
2009-09-24 03:50:26 -04:00
audit.h
Fix rule eviction order for AUDIT_DIR
2009-06-24 00:02:38 -04:00
auditfilter.c
Audit: clean up all op= output to include string quoting
2009-06-24 00:00:52 -04:00
auditsc.c
Audit: rearrange audit_context to save 16 bytes per struct
2009-09-24 03:50:26 -04:00
backtracetest.c
…
bounds.c
…
capability.c
remove CONFIG_SECURITY_FILE_CAPABILITIES compile option
2009-11-24 15:06:47 +11:00
cgroup_freezer.c
cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time
2009-09-24 07:20:58 -07:00
cgroup.c
cgroup: fix strstrip() misuse
2009-10-29 07:39:25 -07:00
compat.c
signals: implement sys_rt_tgsigqueueinfo
2009-04-30 19:24:24 +02:00
configs.c
…
cpu.c
timers, init: Limit the number of per cpu calibration bootup messages
2009-11-26 10:18:42 +01:00
cpuset.c
cpumask: Partition_sched_domains takes array of cpumask_var_t
2009-11-04 13:16:40 +01:00
cred-internals.h
…
cred.c
creds_are_invalid() needs to be exported for use by modules:
2009-09-23 11:02:26 -07:00
delayacct.c
headers: taskstats_kern.h trim
2009-09-18 09:48:52 -07:00
dma.c
…
exec_domain.c
…
exit.c
Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
2009-12-08 08:19:16 -08:00
extable.c
…
fork.c
Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
2009-12-08 08:19:16 -08:00
freezer.c
sched: fix nr_uninterruptible accounting of frozen tasks really
2009-07-18 14:19:53 +02:00
futex_compat.c
futex: Fix compat_futex to be same as futex for REQUEUE_PI
2009-08-10 15:41:12 +02:00
futex.c
futex: Fix spurious wakeup for requeue_pi really
2009-10-28 20:34:34 +01:00
groups.c
groups: move code to kernel/groups.c
2009-06-16 19:47:48 -07:00
hrtimer.c
hrtimer: move timer stats helper functions to hrtimer.c
2009-12-10 13:08:11 +01:00
hung_task.c
softlockup: Fix hung_task_check_count sysctl
2009-11-27 06:21:57 +01:00
hw_breakpoint.c
hw-breakpoints: Use struct perf_event_attr to define kernel breakpoints
2009-11-27 06:22:59 +01:00
itimer.c
itimers: Fix racy writes to cpu_itimer fields
2009-11-18 16:32:12 +01:00
kallsyms.c
hw-breakpoints: Fix broken hw-breakpoint sample module
2009-11-10 11:23:29 +01:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
mutex: Better control mutex adaptive spinning config
2009-12-03 11:50:11 +01:00
Kconfig.preempt
…
kexec.c
kexec: fix omitting offset in extended crashkernel syntax
2009-07-29 19:10:34 -07:00
kfifo.c
kfifo: Use "const" definitions
2009-09-19 13:13:17 -07:00
kgdb.c
sched: Remove unused __schedule() declaration
2009-11-04 11:43:42 +01:00
kmod.c
security: report the module name to security_module_request
2009-11-10 09:33:46 +11:00
kprobes.c
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-05 15:30:21 -08:00
ksysfs.c
…
kthread.c
sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c
2009-11-03 07:25:00 +01:00
latencytop.c
…
lockdep_internals.h
lockdep: BFS cleanup
2009-07-24 10:53:29 +02:00
lockdep_proc.c
seq_file: constify seq_operations
2009-09-23 07:39:29 -07:00
lockdep_states.h
…
lockdep.c
tracing: Rename 'lockdep' event subsystem into 'lock'
2009-11-13 10:48:27 +01:00
Makefile
Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2009-12-08 08:02:38 -08:00
module.c
modules: don't export section names of empty sections via sysfs
2009-12-02 15:38:25 -08:00
mutex-debug.c
headers: remove sched.h from interrupt.h
2009-10-11 11:20:58 -07:00
mutex-debug.h
…
mutex.c
mutex: Better control mutex adaptive spinning config
2009-12-03 11:50:11 +01:00
mutex.h
…
notifier.c
kprobes: Fix to add __kprobes to notify_die
2009-08-30 03:08:26 +02:00
ns_cgroup.c
cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time
2009-09-24 07:20:58 -07:00
nsproxy.c
nsproxy: extract create_nsproxy()
2009-06-18 13:03:56 -07:00
panic.c
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-10-08 12:16:35 -07:00
params.c
param: fix setting arrays of bool
2009-10-29 08:56:20 +10:30
perf_event.c
Merge branch 'for-next' into for-linus
2009-12-07 18:36:35 +01:00
pid_namespace.c
pidns: deny CLONE_PARENT|CLONE_NEWPID combination
2009-09-24 07:21:04 -07:00
pid.c
mm: also use alloc_large_system_hash() for the PID hash table
2009-09-22 07:17:38 -07:00
pm_qos_params.c
pm_qos: clean up racy global "name" variable
2009-10-14 15:31:10 +02:00
posix-cpu-timers.c
posix-cpu-timers: optimize and document timer_create callback
2009-11-18 12:36:05 +01:00
posix-timers.c
time: Introduce CLOCK_REALTIME_COARSE
2009-08-21 21:43:46 +02:00
printk.c
Merge branch 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-05 09:50:22 -08:00
profile.c
kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file
2009-09-20 20:15:40 +02:00
ptrace.c
ptrace: __ptrace_detach: do __wake_up_parent() if we reap the tracee
2009-09-24 07:20:59 -07:00
rcupdate.c
rcu: Re-arrange code to reduce #ifdef pain
2009-11-22 18:58:16 +01:00
rcutiny.c
rcu: Eliminate unneeded function wrapping
2009-11-22 18:58:16 +01:00
rcutorture.c
rcu: Add expedited grace-period support for preemptible RCU
2009-12-03 11:35:25 +01:00
rcutree_plugin.h
rcu: Add expedited grace-period support for preemptible RCU
2009-12-03 11:35:25 +01:00
rcutree_trace.c
rcu: Add expedited grace-period support for preemptible RCU
2009-12-03 11:35:25 +01:00
rcutree.c
rcu: Add expedited grace-period support for preemptible RCU
2009-12-03 11:35:25 +01:00
rcutree.h
rcu: Add expedited grace-period support for preemptible RCU
2009-12-03 11:35:25 +01:00
relay.c
const: mark struct vm_struct_operations
2009-09-27 11:39:25 -07:00
res_counter.c
memcg: some modification to softlimit under hierarchical memory reclaim.
2009-10-01 16:11:13 -07:00
resource.c
walk system ram range
2009-09-23 07:39:41 -07:00
rtmutex_common.h
…
rtmutex-debug.c
…
rtmutex-debug.h
…
rtmutex-tester.c
…
rtmutex.c
rtmutex: Avoid deadlock in rt_mutex_start_proxy_lock()
2009-08-06 05:50:21 +02:00
rtmutex.h
…
rwsem.c
…
sched_clock.c
sched_clock: Fix atomicity/continuity bug by using cmpxchg64()
2009-09-30 22:56:10 +02:00
sched_cpupri.c
sched: Add new prio to cpupri before removing old prio
2009-08-02 14:26:09 +02:00
sched_cpupri.h
…
sched_debug.c
sched: Rate-limit newidle
2009-11-04 19:13:48 +01:00
sched_fair.c
Merge branch 'sched/urgent' into sched/core
2009-11-26 10:50:42 +01:00
sched_features.h
sched: Add new wakeup preemption mode: WAKEUP_RUNNING
2009-09-17 10:17:25 +02:00
sched_idletask.c
sched: Simplify sys_sched_rr_get_interval() system call
2009-09-21 09:53:55 +02:00
sched_rt.c
cpumask: Simplify sched_rt.c
2009-11-04 13:16:38 +01:00
sched_stats.h
…
sched.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
2009-12-08 07:38:50 -08:00
seccomp.c
…
semaphore.c
…
signal.c
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-05 15:30:21 -08:00
slow-work-debugfs.c
SLOW_WORK: Move slow_work's proc file to debugfs
2009-12-01 08:20:31 -08:00
slow-work.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
2009-12-08 07:38:50 -08:00
slow-work.h
SLOW_WORK: Move slow_work's proc file to debugfs
2009-12-01 08:20:31 -08:00
smp.c
generic-ipi: Add smp_call_function_any()
2009-11-18 14:52:25 +01:00
softirq.c
rcu: Cleanup: balance rcu_irq_enter()/rcu_irq_exit() calls
2009-11-02 16:06:37 +01:00
softlockup.c
sysctl: remove "struct file *" argument of ->proc_handler
2009-09-24 07:21:04 -07:00
spinlock.c
locking: Reduce ifdefs in kernel/spinlock.c
2009-11-13 20:53:28 +01:00
srcu.c
rcu: Add synchronize_srcu_expedited()
2009-10-26 09:40:30 +01:00
stacktrace.c
…
stop_machine.c
…
sys_ni.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
2009-12-08 07:55:01 -08:00
sys.c
Merge branch 'bkl-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-09 08:07:17 -08:00
sysctl_binary.c
sysctl binary: Reorder the tests to process wild card entries first.
2009-11-12 01:42:31 -08:00
sysctl_check.c
ipv4 05/05: add sysctl to accept packets with local source addresses
2009-12-03 12:14:38 -08:00
sysctl.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
2009-12-08 07:38:50 -08:00
taskstats.c
genetlink: make netns aware
2009-07-12 14:03:27 -07:00
test_kprobes.c
…
time.c
Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-08 19:27:08 -08:00
timeconst.pl
…
timer.c
Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-09-23 09:46:15 -07:00
tracepoint.c
trivial: fix typo "to to" in multiple files
2009-09-21 15:14:55 +02:00
tsacct.c
…
uid16.c
headers: utsname.h redux
2009-09-23 18:13:10 -07:00
up.c
…
user_namespace.c
…
user-return-notifier.c
core: Clean up user return notifers use of per_cpu
2009-12-02 10:22:59 +01:00
user.c
uids: Prevent tear down race
2009-11-02 16:02:39 +01:00
utsname_sysctl.c
sysctl kernel: Remove binary sysctl logic
2009-11-12 02:04:55 -08:00
utsname.c
utsns: extract creeate_uts_ns()
2009-06-18 13:03:55 -07:00
wait.c
locking, sched: Give waitqueue spinlocks their own lockdep classes
2009-08-10 14:43:09 +02:00
workqueue.c
workqueue: fix race condition in schedule_on_each_cpu()
2009-11-17 17:40:33 -08:00