Thomas Gleixner 746976a301 NTP: remove clock_was_set() call to prevent deadlock ... The clock_was_set() call in seconds_overflow() which happens only when leap seconds are inserted / deleted is wrong in two aspects: 1. it results in a call to on_each_cpu() with interrupts disabled 2. it is potential deadlock source vs. call_lock in smp_call_function() The only possible side effect of the removal might be, that an absolute CLOCK_REALTIME timer fires 1 second too late, in the rare case of leap second deletion and an absolute CLOCK_REALTIME timer which expires in the affected time frame. It will never fire too early. This was probably observed by the reporter of a June 30th -> July 1st hang: http://lkml.org/lkml/2007/7/3/103 A similar problem was observed by Dave Jones, who provided a screen shot with a lockdep back trace, which allowed to analyse the problem. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-07-03 13:54:27 -07:00
..
irq	Fix crash with irqpoll due to the IRQF_IRQPOLL flag testing	2007-05-24 08:37:14 -07:00
power	PM: introduce set_target method in pm_ops	2007-07-01 12:29:44 -07:00
time	NTP: remove clock_was_set() call to prevent deadlock	2007-07-03 13:54:27 -07:00
.gitignore	…
Kconfig.hz	…
Kconfig.preempt	Fix trivial typos in Kconfig* files	2007-05-09 07:12:20 +02:00
Makefile	…
acct.c	…
audit.c	…
audit.h	[PATCH] audit signal recipients	2007-05-11 05:38:25 -04:00
auditfilter.c	audit: fix oops removing watch if audit disabled	2007-06-24 08:59:12 -07:00
auditsc.c	[PATCH] Abnormal End of Processes	2007-05-11 05:38:26 -04:00
capability.c	…
compat.c	signal/timer/event: timerfd compat code	2007-05-11 08:29:36 -07:00
configs.c	use simple_read_from_buffer in kernel/	2007-05-09 12:30:49 -07:00
cpu.c	microcode: use suspend-related CPU hotplug notifications	2007-05-09 12:30:56 -07:00
cpuset.c	cpuset: zero malloc - fix for old cpusets	2007-06-16 13:16:15 -07:00
delayacct.c	…
die_notifier.c	…
dma.c	…
exec_domain.c	…
exit.c	pi-futex: fix exit races and locking problems	2007-06-08 17:23:34 -07:00
extable.c	…
fork.c	freezer: fix vfork problem	2007-05-23 20:14:11 -07:00
futex.c	FUTEX: Restore the dropped ERSCH fix	2007-06-24 12:08:53 -07:00
futex_compat.c	Revert "futex_requeue_pi optimization"	2007-06-18 09:48:41 -07:00
hrtimer.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
itimer.c	…
kallsyms.c	fix possible null ptr deref in kallsyms_lookup	2007-05-30 10:51:38 -07:00
kexec.c	…
kfifo.c	…
kmod.c	wait_for_helper: remove unneeded do_sigaction()	2007-05-09 12:30:53 -07:00
kprobes.c	…
ksysfs.c	…
kthread.c	freezer: fix kthread_create vs freezer theoretical race	2007-05-23 20:14:11 -07:00
latency.c	…
lockdep.c	…
lockdep_internals.h	…
lockdep_proc.c	…
module.c	Fix minor typoes in kernel/module.c	2007-05-09 07:26:28 +02:00
mutex-debug.c	…
mutex-debug.h	…
mutex.c	wrap access to thread_info	2007-05-09 12:30:56 -07:00
mutex.h	…
nsproxy.c	fix refcounting of nsproxy object when unshared	2007-06-24 08:59:10 -07:00
panic.c	…
params.c	…
pid.c	statically initialize struct pid for swapper	2007-05-11 08:29:35 -07:00
posix-cpu-timers.c	…
posix-timers.c	posix-timers: Prevent softirq starvation by small intervals and SIG_IGN	2007-06-21 15:57:04 -07:00
printk.c	…
profile.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
ptrace.c	[PATCH] auditing ptrace	2007-05-11 05:38:25 -04:00
rcupdate.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
rcutorture.c	…
relay.c	relayfs: fix overwrites	2007-06-28 11:38:18 -07:00
resource.c	…
rtmutex-debug.c	…
rtmutex-debug.h	…
rtmutex-tester.c	…
rtmutex.c	Revert "futex_requeue_pi optimization"	2007-06-18 09:48:41 -07:00
rtmutex.h	…
rtmutex_common.h	Revert "futex_requeue_pi optimization"	2007-06-18 09:48:41 -07:00
rwsem.c	…
sched.c	sched: fix next_interval determination in idle_balance()	2007-06-24 08:59:11 -07:00
seccomp.c	…
signal.c	Fix signalfd interaction with thread-private signals	2007-06-18 10:18:32 -07:00
softirq.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
softlockup.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
spinlock.c	…
srcu.c	…
stacktrace.c	…
stop_machine.c	stop_machine() now uses hard_irq_disable	2007-05-11 08:29:34 -07:00
sys.c	attach_pid() with struct pid parameter	2007-05-11 08:29:35 -07:00
sys_ni.c	compat signalfd and timerfd are cond syscalls	2007-05-12 10:55:40 -07:00
sysctl.c	make sysctl/kernel/core_pattern and fs/exec.c agree on maximum core filename size	2007-05-17 05:23:05 -07:00
taskstats.c	…
time.c	…
timer.c	NOHZ: prevent multiplication overflow - stop timer for huge timeouts	2007-05-29 18:11:10 -07:00
tsacct.c	…
uid16.c	…
user.c	…
utsname.c	…
utsname_sysctl.c	…
wait.c	Fix occurrences of "the the "	2007-05-09 08:57:56 +02:00
workqueue.c	simplify cleanup_workqueue_thread()	2007-05-23 20:14:13 -07:00