Jeremy Fitzhardinge f445027e4e stop_machine: make stop_machine safe and efficient to call early ...

Make stop_machine() safe to call early in boot, before SMP has been set
up, by simply calling the callback function directly if there's only one
CPU online.

[ Fixes from AKPM:
   - add comment
   - local_irq_flags, not save_flags
   - also call hard_irq_disable() for systems which need it

  Tejun suggested using an explicit flag rather than just looking at
  the online cpu count. ]

Cc: Tejun Heo <[email protected]>
Acked-by: Rusty Russell <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Steven Rostedt <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2011-10-31 17:30:53 -07:00

..

debug

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb

2011-08-01 13:39:40 -10:00

events

mm: distinguish between mlocked and pinned pages

2011-10-31 17:30:46 -07:00

gcov

gcov: disable CONSTRUCTORS for UML

2011-07-26 16:49:45 -07:00

irq

Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6

2011-10-29 07:27:45 -07:00

power

Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

2011-10-28 12:02:27 -07:00

time

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 17:15:03 +02:00

trace

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 17:03:38 +02:00

.gitignore

…

acct.c

…

async.c

async: uninitialized warning corrections

2011-09-15 14:22:28 +02:00

audit_tree.c

…

audit_watch.c

…

audit.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

audit.h

…

auditfilter.c

…

auditsc.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

backtracetest.c

…

bounds.c

…

capability.c

…

cgroup_freezer.c

…

cgroup.c

locking, sched, cgroups: Annotate release_list_lock as raw

2011-09-13 11:11:49 +02:00

compat.c

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

2011-07-30 00:08:53 -07:00

configs.c

kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n

2011-07-25 20:57:15 -07:00

cpu_pm.c

cpu_pm: call notifiers during suspend

2011-09-23 12:05:29 +05:30

cpu.c

…

cpuset.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

crash_dump.c

…

cred.c

Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security

2011-10-25 09:45:31 +02:00

delayacct.c

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dma.c

…

elfcore.c

…

exec_domain.c

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exit.c

oom: remove oom_disable_count

2011-10-31 17:30:45 -07:00

extable.c

…

fork.c

oom: remove oom_disable_count

2011-10-31 17:30:45 -07:00

freezer.c

PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too

2011-10-16 23:30:37 +02:00

futex_compat.c

…

futex.c

Merge branch 'master' into for-next

2011-09-15 15:08:18 +02:00

groups.c

…

hrtimer.c

…

hung_task.c

…

irq_work.c

llist: Add llist_next()

2011-10-04 12:43:53 +02:00

itimer.c

…

jump_label.c

…

kallsyms.c

…

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kexec.c

…

kfifo.c

…

kmod.c

kmod: prevent kmod_loop_msg overflow in __request_module()

2011-10-26 13:10:39 +10:30

kprobes.c

locking, kprobes: Annotate the hash locks and kretprobe.lock as raw

2011-09-13 11:11:45 +02:00

ksysfs.c

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kthread.c

…

latencytop.c

locking, latencytop: Annotate latency_lock as raw

2011-09-13 11:12:02 +02:00

lockdep_internals.h

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lockdep_proc.c

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lockdep_states.h

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lockdep.c

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 16:26:53 +02:00

Makefile

Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

2011-10-28 12:02:27 -07:00

module.c

Tracepoint: Dissociate from module mutex

2011-08-10 20:38:14 -04:00

mutex-debug.c

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mutex-debug.h

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mutex.c

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mutex.h

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notifier.c

notifiers: sys: move reboot notifiers into reboot.h

2011-07-25 20:57:14 -07:00

nsproxy.c

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padata.c

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panic.c

panic: panic=-1 for immediate reboot

2011-07-26 16:49:45 -07:00

params.c

params: make dashes and underscores in parameter names truly equal

2011-10-26 13:10:39 +10:30

pid_namespace.c

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pid.c

rcu: Restore checks for blocking in RCU read-side critical sections

2011-09-28 21:36:37 -07:00

posix-cpu-timers.c

Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 16:17:32 +02:00

posix-timers.c

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printk.c

locking, printk: Annotate logbuf_lock as raw

2011-09-13 11:11:54 +02:00

profile.c

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ptrace.c

ptrace: PTRACE_LISTEN forgets to unlock ->siglock

2011-09-25 11:02:00 -07:00

range.c

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rcu.h

rcu: Add grace-period, quiescent-state, and call_rcu trace events

2011-09-28 21:38:21 -07:00

rcupdate.c

rcu: Add event-tracing for RCU callback invocation

2011-09-28 21:38:12 -07:00

rcutiny_plugin.h

rcu: Make TINY_RCU also use softirq for RCU_BOOST=n

2011-09-28 21:38:20 -07:00

rcutiny.c

rcu: Add grace-period, quiescent-state, and call_rcu trace events

2011-09-28 21:38:21 -07:00

rcutorture.c

rcu: Make rcu_torture_boost() exit loops at end of test

2011-09-28 21:38:46 -07:00

rcutree_plugin.h

rcu: Remove rcu_needs_cpu_flush() to avoid false quiescent states

2011-09-28 21:38:48 -07:00

rcutree_trace.c

rcu: Simplify quiescent-state accounting

2011-09-28 21:38:22 -07:00

rcutree.c

rcu: Move propagation of ->completed from rcu_start_gp() to rcu_report_qs_rsp()

2011-09-28 21:38:49 -07:00

rcutree.h

rcu: Remove rcu_needs_cpu_flush() to avoid false quiescent states

2011-09-28 21:38:48 -07:00

relay.c

…

res_counter.c

…

resource.c

Resource: fix wrong resource window calculation

2011-09-29 20:04:34 -07:00

rtmutex_common.h

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rtmutex-debug.c

rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock()

2011-10-05 13:20:24 +02:00

rtmutex-debug.h

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rtmutex-tester.c

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rtmutex.c

rcu: Permit rt_mutex_unlock() with irqs disabled

2011-09-28 21:38:43 -07:00

rtmutex.h

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rwsem.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

sched_autogroup.c

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sched_autogroup.h

…

sched_clock.c

…

sched_cpupri.c

sched/cpupri: Remove cpupri->pri_active

2011-08-14 12:01:11 +02:00

sched_cpupri.h

sched/cpupri: Remove cpupri->pri_active

2011-08-14 12:01:11 +02:00

sched_debug.c

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sched_fair.c

sched: Wrap scheduler p->cpus_allowed access

2011-10-06 12:46:56 +02:00

sched_features.h

sched: Kill WAKEUP_PREEMPT

2011-08-14 12:00:41 +02:00

sched_idletask.c

…

sched_rt.c

sched: Warn on rt throttling

2011-10-06 12:47:04 +02:00

sched_stats.h

locking, sched: Annotate thread_group_cputimer as raw

2011-09-13 11:11:55 +02:00

sched_stoptask.c

sched: Implement hierarchical task accounting for SCHED_OTHER

2011-08-14 12:01:13 +02:00

sched.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 17:08:43 +02:00

seccomp.c

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semaphore.c

locking, semaphores: Annotate inner lock as raw

2011-09-13 11:11:57 +02:00

signal.c

user namespace: usb: make usb urbs user namespace aware (v2)

2011-09-29 13:13:08 -07:00

smp.c

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softirq.c

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spinlock.c

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srcu.c

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stacktrace.c

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stop_machine.c

stop_machine: make stop_machine safe and efficient to call early

2011-10-31 17:30:53 -07:00

sys_ni.c

Cross Memory Attach

2011-10-31 17:30:44 -07:00

sys.c

Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/net

2011-10-24 18:18:09 -04:00

sysctl_binary.c

ipv4: NET_IPV4_ROUTE_GC_INTERVAL removal

2011-10-03 14:13:01 -04:00

sysctl_check.c

xfs: remove subdirectories

2011-08-12 16:21:35 -05:00

sysctl.c

sched: Accumulate per-cfs_rq cpu usage and charge against bandwidth

2011-08-14 12:03:26 +02:00

taskstats.c

Make TASKSTATS require root access

2011-09-19 17:04:37 -07:00

test_kprobes.c

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time.c

time: Change jiffies_to_clock_t() argument type to unsigned long

2011-09-21 10:28:51 +02:00

timeconst.pl

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timer.c

…

tracepoint.c

Tracepoint: Dissociate from module mutex

2011-08-10 20:38:14 -04:00

tsacct.c

Make taskstats round statistics down to nearest 1k bytes/events

2011-09-19 17:10:57 -07:00

uid16.c

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up.c

…

user_namespace.c

…

user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

…

wait.c

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watchdog.c

watchdog: Drop FIFO policy in exit path

2011-09-18 14:34:07 +02:00

workqueue_sched.h

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workqueue.c

workqueue: lock cwq access in drain_workqueue

2011-09-14 18:09:38 -07:00