Thomas Gleixner c4bd822e7b NOHZ: fix thinko in the timer restart code path ... commit fb02fbc14d (NOHZ: restart tick device from irq_enter()) solves the problem of stale jiffies when long running softirqs happen in a long idle sleep period, but it has a major thinko in it: When the interrupt which came in _is_ the timer interrupt which should expire ts->sched_timer then we cancel and rearm the timer _before_ it gets expired in hrtimer_interrupt() to the next period. That means the call back function is not called. This game can go on for ever :( Prevent this by making sure to only rearm the timer when the expiry time is more than one tick_period away. Otherwise keep it running as it is either already expired or will expiry at the right point to update jiffies. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Venkatesch Pallipadi <venkatesh.pallipadi@intel.com>		2008-10-21 20:53:24 +02:00
..
irq	genirq: fix name space collision of nr_irqs in autoprobe.c	2008-10-16 16:53:30 +02:00
power	container freezer: skip frozen cgroups during power management resume	2008-10-20 08:52:34 -07:00
time	NOHZ: fix thinko in the timer restart code path	2008-10-21 20:53:24 +02:00
trace	tracing/fastboot: improve help text	2008-10-14 14:27:20 +02:00
.gitignore	Update kernel/.gitignore with new auto-generated files	2008-02-09 23:27:01 -08:00
Kconfig.freezer	container freezer: implement freezer cgroup subsystem	2008-10-20 08:52:34 -07:00
Kconfig.hz	sched: fix SCHED_HRTICK dependency	2008-07-28 14:37:38 +02:00
Kconfig.preempt	rcu: move PREEMPT_RCU config option back under PREEMPT	2008-03-10 18:01:20 -07:00
Makefile	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
acct.c	tty: Fix abusers of current->sighand->tty	2008-10-13 09:51:42 -07:00
audit.c	[PATCH] Fix the bug of using AUDIT_STATUS_RATE_LIMIT when set fail, no error output.	2008-08-01 12:15:16 -04:00
audit.h	[PATCH 1/2] audit: move extern declarations to audit.h	2008-04-28 06:28:04 -04:00
audit_tree.c	[PATCH] list_for_each_rcu must die: audit	2008-05-17 03:30:23 -04:00
auditfilter.c	Re: [PATCH] the loginuid field should be output in all AUDIT_CONFIG_CHANGE audit messages	2008-08-01 12:15:03 -04:00
auditsc.c	tty: Fix abusers of current->sighand->tty	2008-10-13 09:51:42 -07:00
backtracetest.c	backtrace: replace timer with tasklet + completions	2008-06-27 18:09:16 +02:00
bounds.c	Add kbuild.h that contains common definitions for kbuild users	2008-04-29 08:06:29 -07:00
capability.c	security: Fix setting of PF_SUPERPRIV by __capable()	2008-08-14 22:59:43 +10:00
cgroup.c	cgroups: convert tasks file to use a seq_file with shared pid array	2008-10-20 08:52:38 -07:00
cgroup_debug.c	cgroups: fix probable race with put_css_set[_taskexit] and find_css_set	2008-10-20 08:52:38 -07:00
cgroup_freezer.c	container freezer: rename check_if_frozen()	2008-10-20 08:52:34 -07:00
compat.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
configs.c	kernel/configs.c: remove useless comments	2008-10-20 08:52:34 -07:00
cpu.c	Merge branches 'sched/devel', 'sched/cpu-hotplug', 'sched/cpusets' and 'sched/urgent' into sched/core	2008-10-08 11:31:02 +02:00
cpuset.c	cpuset: use seq_*mask_* to print masks	2008-10-20 08:52:39 -07:00
delayacct.c	per-task-delay-accounting: update taskstats for memory reclaim delay	2008-07-25 10:53:47 -07:00
dma-coherent.c	dma-coherent: export dma_[alloc|release]_from_coherent methods	2008-08-22 08:34:53 +02:00
dma.c	kernel/dma.c: remove a CVS keyword	2008-10-16 11:21:30 -07:00
exec_domain.c	[PATCH] kill altroot	2008-07-26 20:53:20 -04:00
exit.c	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
extable.c	module: Don't report discarded init pages as kernel text.	2008-01-29 17:13:18 +11:00
fork.c	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
freezer.c	container freezer: implement freezer cgroup subsystem	2008-10-20 08:52:34 -07:00
futex.c	futexes: fix fault handling in futex_lock_pi	2008-06-23 13:31:15 +02:00
futex_compat.c	futex_compat __user annotation	2008-03-30 14:18:41 -07:00
hrtimer.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
itimer.c	timers: fix itimer/many thread hang	2008-09-14 16:25:35 +02:00
kallsyms.c	kernel/kallsyms.c: fix double return	2008-10-16 11:21:32 -07:00
kexec.c	kexec: fix crash_save_vmcoreinfo_init build problem	2008-10-20 15:28:50 -07:00
kfifo.c	is_power_of_2: kernel/kfifo.c	2007-07-16 09:05:50 -07:00
kgdb.c	kgdb: call touch_softlockup_watchdog on resume	2008-10-06 13:50:59 -05:00
kmod.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus	2008-10-16 12:38:34 -07:00
kprobes.c	make kprobes.c:kretprobe_table_lock() static	2008-10-16 11:21:52 -07:00
ksysfs.c	profiling: dynamically enable readprofile at runtime	2008-10-16 11:21:31 -07:00
kthread.c	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
latencytop.c	kernel: use non-racy method for proc entries creation	2008-04-29 08:06:22 -07:00
lockdep.c	lockdep: fix invalid list_del_rcu in zap_class	2008-08-27 08:40:36 +02:00
lockdep_internals.h	lockdep: build fix	2008-08-13 12:55:10 +02:00
lockdep_proc.c	lockstat: fix numerical output rounding error	2008-08-26 10:37:46 +02:00
marker.c	markers: bit-field is not thread-safe nor smp-safe	2008-10-14 10:38:45 +02:00
module.c	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
mutex-debug.c	mutex-debug: check mutex magic before owner	2008-05-16 16:53:35 +02:00
mutex-debug.h	…
mutex.c	locking: fix mutex @key parameter kernel-doc notation	2008-07-28 18:12:36 +02:00
mutex.h	…
notifier.c	ftrace: ignore functions that cannot be kprobe-ed	2008-10-14 10:34:22 +02:00
ns_cgroup.c	cgroup_clone: use pid of newly created task for new cgroup	2008-07-25 10:53:37 -07:00
nsproxy.c	removed unused #include <linux/version.h>'s	2008-08-23 12:14:12 -07:00
panic.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6	2008-10-17 09:50:12 -07:00
params.c	Add new string functions strict_strto* and convert kernel params to use them	2008-02-08 09:22:41 -08:00
pid.c	pidns: remove now unused find_pid function.	2008-07-25 10:53:45 -07:00
pid_namespace.c	pid_ns: (BUG 11391) change ->child_reaper when init->group_leader exits	2008-09-02 19:21:38 -07:00
pm_qos_params.c	pm_qos_requirement might sleep	2008-09-02 19:21:40 -07:00
posix-cpu-timers.c	timers: fix itimer/many thread hang, v2	2008-09-23 13:38:44 +02:00
posix-timers.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
printk.c	Merge branch 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-16 15:17:40 -07:00
profile.c	profiling: dynamically enable readprofile at runtime	2008-10-16 11:21:31 -07:00
ptrace.c	make ptrace_untrace() static	2008-10-20 08:52:39 -07:00
rcuclassic.c	rcu: RCU-based detection of stalled CPUs for Classic RCU, fix	2008-10-03 10:41:00 +02:00
rcupdate.c	rcu: fix synchronize_rcu() so that kernel-doc works	2008-08-21 09:31:44 +02:00
rcupreempt.c	byteorder: remove direct includes of linux/byteorder/swab[b].h	2008-10-20 08:52:40 -07:00
rcupreempt_trace.c	rcu: trace fix possible mem-leak	2008-08-15 17:54:40 +02:00
rcutorture.c	byteorder: remove direct includes of linux/byteorder/swab[b].h	2008-10-20 12:51:53 -07:00
relay.c	relay: fix "full buffer with exactly full last subbuffer" accounting problem	2008-08-05 14:33:46 -07:00
res_counter.c	cgroup files: convert res_counter_write() to be a cgroups write_string() handler	2008-07-25 10:53:36 -07:00
resource.c	Merge branch 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-16 15:17:40 -07:00
rtmutex-debug.c	Don't operate with pid_t in rtmutex tester	2008-02-08 09:22:41 -08:00
rtmutex-debug.h	…
rtmutex-tester.c	sysdev: Pass the attribute to the low level sysdev show/store function	2008-07-21 21:55:02 -07:00
rtmutex.c	hrtimer: more hrtimer_init_sleeper() fallout.	2008-02-13 15:45:36 +01:00
rtmutex.h	…
rtmutex_common.h	Don't operate with pid_t in rtmutex tester	2008-02-08 09:22:41 -08:00
rwsem.c	sched: mark rwsem functions as __sched for wchan/profiling	2007-12-18 15:21:13 +01:00
sched.c	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
sched_clock.c	sched_clock: prevent scd->clock from moving backwards	2008-10-10 11:17:04 +02:00
sched_cpupri.c	sched: use a 2-d bitmap for searching lowest-pri CPU	2008-06-06 15:19:28 +02:00
sched_cpupri.h	sched: fix the cpuprio count really	2008-06-06 15:19:44 +02:00
sched_debug.c	[PATCH] signal, procfs: some lock_task_sighand() users do not need rcu_read_lock()	2008-10-10 04:18:57 +04:00
sched_fair.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
sched_features.h	sched: turn off WAKEUP_OVERLAP	2008-09-22 16:29:00 +02:00
sched_idletask.c	sched: wakeup preempt when small overlap	2008-09-22 16:28:32 +02:00
sched_rt.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
sched_stats.h	timers: fix itimer/many thread hang, v3	2008-09-27 20:04:45 +02:00
seccomp.c	…
semaphore.c	semaphore: __down_common: use signal_pending_state()	2008-08-05 14:33:47 -07:00
signal.c	Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:35:07 -07:00
smp.c	smp: have smp_call_function_single() detect invalid CPUs	2008-08-25 17:45:48 -07:00
softirq.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
softlockup.c	Make the taint flags reliable	2008-10-16 11:21:31 -07:00
spinlock.c	lockdep: spin_lock_nest_lock(), checkpatch fixes	2008-08-13 13:56:51 +02:00
srcu.c	make srcu_readers_active() static	2008-02-06 10:41:02 -08:00
stacktrace.c	stacktrace: fix modular build, export print_stack_trace and save_stack_trace	2008-06-30 09:20:55 +02:00
stop_machine.c	stop_machine: remove unused variable	2008-08-12 17:52:55 +10:00
sys.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
sys_ni.c	Configure out AIO support	2008-10-16 11:21:51 -07:00
sysctl.c	vmscan: unevictable LRU scan sysctl	2008-10-20 08:52:31 -07:00
sysctl_check.c	sysctl: check for bogus modes	2008-07-25 10:53:45 -07:00
taskstats.c	taskstats: remove initialization of static per-cpu variable	2008-07-25 10:53:47 -07:00
test_kprobes.c	kprobes: kretprobe user entry-handler	2008-02-06 10:41:11 -08:00
time.c	Make constants in kernel/timeconst.h fixed 64 bits	2008-05-02 16:18:42 -07:00
timeconst.pl	Make constants in kernel/timeconst.h fixed 64 bits	2008-05-02 16:18:42 -07:00
timer.c	Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus	2008-10-20 13:14:06 +02:00
tracepoint.c	tracepoints: fix reentrancy	2008-10-14 10:38:23 +02:00
tsacct.c	task IO accounting: move all IO statistics in struct task_io_accounting	2008-07-27 16:12:28 -07:00
uid16.c	asmlinkage_protect replaces prevent_tail_call	2008-04-10 17:28:26 -07:00
user.c	sched: rt-bandwidth for user grouping interface	2008-08-19 13:10:09 +02:00
user_namespace.c	removed unused #include <linux/version.h>'s	2008-08-23 12:14:12 -07:00
utsname.c	removed unused #include <linux/version.h>'s	2008-08-23 12:14:12 -07:00
utsname_sysctl.c	sysctl: simplify ->strategy	2008-10-16 11:21:47 -07:00
wait.c	wait: kill is_sync_wait()	2008-10-16 11:21:31 -07:00
workqueue.c	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00