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Ingo Molnar 5cbd54ef47 sched: fix init_idle()'s use of sched_clock() 
Maciej Rutecki reported:

> I have this bug during suspend to disk:
>
> [  188.592151] Enabling non-boot CPUs ...
> [  188.592151] SMP alternatives: switching to SMP code
> [  188.666058] BUG: using smp_processor_id() in preemptible
> [00000000]
> code: suspend_to_disk/2934
> [  188.666064] caller is native_sched_clock+0x2b/0x80

Which, as noted by Linus, was caused by me, via:

  7cbaef9c "sched: optimize sched_clock() a bit"

Move the rq locking a bit earlier in the initialization sequence,
that will make the sched_clock() call in init_idle() non-preemptible.

Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12 20:05:50 +01:00
..
irq
irq: make variable static
2008-10-22 07:37:17 +02:00
power
PM_TEST_SUSPEND should depend on RTC_CLASS, not RTC_LIB
2008-11-01 12:40:38 -07:00
time
nohz: disable tick_nohz_kick_tick() for now
2008-11-10 22:39:27 +01:00
trace
Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
2008-11-11 09:16:20 +01:00
.gitignore
…
acct.c
tty: Fix abusers of current->sighand->tty
2008-10-13 09:51:42 -07:00
audit_tree.c
[PATCH] get rid of nameidata in audit_tree
2008-10-23 05:12:53 -04:00
audit.c
…
audit.h
…
auditfilter.c
…
auditsc.c
tty: Fix abusers of current->sighand->tty
2008-10-13 09:51:42 -07:00
backtracetest.c
…
bounds.c
…
capability.c
…
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
freezer_cg: simplify freezer_change_state()
2008-10-30 11:38:45 -07:00
cgroup.c
cgroups: fix invalid cgrp->dentry before cgroup has been completely removed
2008-11-06 15:41:19 -08:00
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
cpumask: introduce new API, without changing anything
2008-11-06 09:05:33 +01:00
cpuset.c
cpuset: use seq_*mask_* to print masks
2008-10-20 08:52:39 -07:00
delayacct.c
…
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
proc: move /proc/execdomains to kernel/exec_domain.c
2008-10-23 14:30:41 +04:00
exit.c
fix for account_group_exec_runtime(), make sure ->signal can't be freed under rq->lock
2008-11-11 08:01:43 +01:00
extable.c
…
fork.c
Merge branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2
2008-10-22 09:48:06 +02:00
freezer.c
freezer_cg: use thaw_process() in unfreeze_cgroup()
2008-10-30 11:38:45 -07:00
futex_compat.c
…
futex.c
hrtimer: make the futex() system call use the per process slack value
2008-09-11 07:17:00 -07:00
hrtimer.c
timers: handle HRTIMER_CB_IRQSAFE_UNLOCKED correctly from softirq context
2008-11-11 10:46:42 +01:00
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
Kconfig.freezer
container freezer: implement freezer cgroup subsystem
2008-10-20 08:52:34 -07:00
Kconfig.hz
…
Kconfig.preempt
…
kexec.c
kexec: fix crash_save_vmcoreinfo_init build problem
2008-10-20 15:28:50 -07:00
kfifo.c
…
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
…
lockdep_internals.h
…
lockdep_proc.c
lockstat: fix numerical output rounding error
2008-08-26 10:37:46 +02:00
lockdep.c
lockdep: fix irqs on/off ip tracing
2008-10-28 11:19:07 +01:00
Makefile
Merge branch 'tracing/ftrace' into tracing/urgent
2008-10-22 09:08:14 +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 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc
2008-10-23 12:04:37 -07:00
mutex-debug.c
…
mutex-debug.h
…
mutex.c
…
mutex.h
…
notifier.c
ftrace: ignore functions that cannot be kprobe-ed
2008-10-14 10:34:22 +02:00
ns_cgroup.c
…
nsproxy.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
panic.c
Make panic= and panic_on_oops into core_params
2008-10-22 10:00:25 +11:00
params.c
Fix compile warning in kernel/params.c
2008-10-23 12:09:00 -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
pid.c
…
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 branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2
2008-10-22 09:48:06 +02:00
printk.c
printk: remove unused code from kernel/printk.c
2008-10-23 21:54:29 +02:00
profile.c
kernel/profile: fix profile_init() section mismatch
2008-10-30 11:38:46 -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
rcupdate: fix bug of rcu_barrier*()
2008-10-21 15:59:53 +02:00
rcupreempt_trace.c
…
rcupreempt.c
byteorder: remove direct includes of linux/byteorder/swab[b].h
2008-10-20 08:52:40 -07:00
rcutorture.c
byteorder: remove direct includes of linux/byteorder/swab[b].h
2008-10-20 12:51:53 -07:00
relay.c
…
res_counter.c
…
resource.c
reserve_region_with_split: Fix GFP_KERNEL usage under spinlock
2008-11-01 09:53:58 -07:00
rtmutex_common.h
…
rtmutex-debug.c
…
rtmutex-debug.h
…
rtmutex-tester.c
…
rtmutex.c
hrtimer: convert kernel/* to the new hrtimer apis
2008-09-05 21:35:13 -07:00
rtmutex.h
…
rwsem.c
…
sched_clock.c
sched_clock: prevent scd->clock from moving backwards
2008-10-10 11:17:04 +02:00
sched_cpupri.c
…
sched_cpupri.h
…
sched_debug.c
sched: clean up debug info
2008-11-10 10:51:51 +01:00
sched_fair.c
sched: release buddies on yield
2008-11-11 11:57:22 +01:00
sched_features.h
sched: backward looking buddy
2008-11-05 10:30:14 +01:00
sched_idletask.c
sched: add CONFIG_SMP consistency
2008-10-22 10:01:52 +02:00
sched_rt.c
Merge commit 'v2.6.28-rc1' into sched/urgent
2008-10-24 12:48:46 +02:00
sched_stats.h
Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc
2008-10-23 12:04:37 -07:00
sched.c
sched: fix init_idle()'s use of sched_clock()
2008-11-12 20:05:50 +01:00
seccomp.c
…
semaphore.c
…
signal.c
'kill sig -1' must only apply to caller's namespace
2008-10-30 11:38:46 -07:00
smp.c
generic-ipi: fix the smp_mb() placement
2008-11-06 08:41:56 +01:00
softirq.c
irq: call __irq_enter() before calling the tick_idle_check
2008-11-10 22:36:39 +01:00
softlockup.c
Make the taint flags reliable
2008-10-16 11:21:31 -07:00
spinlock.c
…
srcu.c
…
stacktrace.c
…
stop_machine.c
Revert "Call init_workqueues before pre smp initcalls."
2008-10-25 19:53:38 -07:00
sys_ni.c
Configure out AIO support
2008-10-16 11:21:51 -07:00
sys.c
Merge branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2
2008-10-22 09:48:06 +02:00
sysctl_check.c
…
sysctl.c
Merge commit 'v2.6.28-rc2' into tracing/urgent
2008-10-27 10:50:54 +01:00
taskstats.c
…
test_kprobes.c
…
time.c
select: add a timespec_add_safe() function
2008-09-05 21:34:57 -07:00
timeconst.pl
…
timer.c
Add round_jiffies_up and related routines
2008-11-06 08:42:48 +01:00
tracepoint.c
tracepoint: check if the probe has been registered
2008-10-27 16:45:46 +01:00
tsacct.c
…
uid16.c
…
user_namespace.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
user.c
sched: rt-bandwidth for user grouping interface
2008-08-19 13:10:09 +02:00
utsname_sysctl.c
sysctl: simplify ->strategy
2008-10-16 11:21:47 -07:00
utsname.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
wait.c
wait: kill is_sync_wait()
2008-10-16 11:21:31 -07:00
workqueue.c
cpumask: introduce new API, without changing anything
2008-11-06 09:05:33 +01:00