Mandeep Singh Baines 586692a5a5 watchdog: Disable watchdog when thresh is zero ...

This restores the previous behavior of softlock_thresh.

Currently, setting watchdog_thresh to zero causes the watchdog
kthreads to consume a lot of CPU.

In addition, the logic of proc_dowatchdog_thresh and
proc_dowatchdog_enabled has been factored into proc_dowatchdog.

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1306127423-3347-3-git-send-email-msb@chromium.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20110517071018.GE22305@elte.hu>

2011-05-23 11:58:59 +02:00

..

debug

Fix common misspellings

2011-03-31 11:26:23 -03:00

events

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 18:14:34 -07:00

gcov

Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

2011-03-20 18:14:55 -07:00

irq

Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 17:30:15 -07:00

power

PM: Allow drivers to allocate memory from .prepare() callbacks safely

2011-05-17 23:26:00 +02:00

time

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 17:45:08 -07:00

trace

Merge branches 'sched-core-for-linus' and 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 17:41:22 -07:00

.gitignore

…

acct.c

…

async.c

…

audit_tree.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

audit_watch.c

kill path_lookup()

2011-03-14 09:15:23 -04:00

audit.c

…

audit.h

…

auditfilter.c

…

auditsc.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

backtracetest.c

…

bounds.c

memcg: remove direct page_cgroup-to-page pointer

2011-03-23 19:46:28 -07:00

capability.c

Cache user_ns in struct cred

2011-05-13 11:45:33 -07:00

cgroup_freezer.c

…

cgroup.c

cgroup,rcu: convert call_rcu(__free_css_id_cb) to kfree_rcu()

2011-05-07 22:50:47 -07:00

compat.c

…

configs.c

…

cpu.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

cpuset.c

sched: Dynamic sched_domain::level

2011-04-11 14:09:32 +02:00

crash_dump.c

crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn

2011-03-23 19:47:19 -07:00

cred.c

Cache user_ns in struct cred

2011-05-13 11:45:33 -07:00

delayacct.c

…

dma.c

…

elfcore.c

…

exec_domain.c

…

exit.c

ptrace: Prepare to fix racy accesses on task breakpoints

2011-04-25 17:28:24 +02:00

extable.c

extable, core_kernel_data(): Make sure all archs define _sdata

2011-05-20 08:56:56 +02:00

fork.c

sched: Remove unused parameters from sched_fork() and wake_up_new_task()

2011-05-12 09:36:37 +02:00

freezer.c

Freezer: Use SMP barriers

2011-05-17 23:19:17 +02:00

futex_compat.c

userns: user namespaces: convert several capable() calls

2011-03-23 19:47:08 -07:00

futex.c

futex: Set FLAGS_HAS_TIMEOUT during futex_wait restart setup

2011-04-15 16:34:32 +02:00

groups.c

userns: user namespaces: convert several capable() calls

2011-03-23 19:47:08 -07:00

hrtimer.c

hrtimer: Make lookup table const

2011-05-02 21:37:57 +02:00

hung_task.c

watchdog, hung_task_timeout: Add Kconfig configurable default

2011-04-28 09:13:17 +02:00

irq_work.c

…

itimer.c

…

jump_label.c

jump label: Introduce static_branch() interface

2011-04-04 12:48:08 -04:00

kallsyms.c

Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-03-25 17:52:22 -07:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kexec.c

PM: Remove sysdev suspend, resume and shutdown operations

2011-05-11 21:37:15 +02:00

kfifo.c

…

kmod.c

kmod: always provide usermodehelper_disable()

2011-05-17 23:19:18 +02:00

kprobes.c

…

ksysfs.c

kernel/ksysfs.c: expose file_caps_enabled in sysfs

2011-04-19 16:45:51 -07:00

kthread.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

latencytop.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

lockdep_internals.h

…

lockdep_proc.c

lockdep: Remove unused 'factor' variable from lockdep_stats_show()

2011-03-23 13:54:47 +01:00

lockdep_states.h

…

lockdep.c

lockdep: Remove cmpxchg to update nr_chain_hlocks

2011-04-22 11:06:59 +02:00

Makefile

hw breakpoints: Move to kernel/events/

2011-05-03 15:26:43 +02:00

module.c

module: Use binary search in lookup_symbol()

2011-05-19 16:55:27 +09:30

mutex-debug.c

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

mutex-debug.h

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

mutex.c

sched: Get rid of lock_depth

2011-04-24 13:18:38 +02:00

mutex.h

mutex: Use p->on_cpu for the adaptive spin

2011-04-14 08:52:33 +02:00

notifier.c

…

ns_cgroup.c

…

nsproxy.c

userns: user namespaces: convert several capable() calls

2011-03-23 19:47:08 -07:00

padata.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

panic.c

move x86 specific oops=panic to generic code

2011-03-22 17:44:11 -07:00

params.c

params.c: Use new strtobool function to process boolean inputs

2011-05-19 16:55:28 +09:30

pid_namespace.c

pidns: call pid_ns_prepare_proc() from create_pid_namespace()

2011-03-23 19:46:58 -07:00

pid.c

next_pidmap: fix overflow condition

2011-04-18 10:35:30 -07:00

pm_qos_params.c

PM QoS: Make pm_qos settings readable

2011-03-15 00:43:18 +01:00

posix-cpu-timers.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

posix-timers.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

printk.c

printk: allow setting DEFAULT_MESSAGE_LEVEL via Kconfig

2011-03-22 17:44:13 -07:00

profile.c

…

ptrace.c

ptrace: Prepare to fix racy accesses on task breakpoints

2011-04-25 17:28:24 +02:00

range.c

…

rcupdate.c

rcu: Use WARN_ON_ONCE for DEBUG_OBJECTS_RCU_HEAD warnings

2011-05-05 23:16:57 -07:00

rcutiny_plugin.h

rcu: Converge TINY_RCU expedited and normal boosting

2011-05-05 23:16:58 -07:00

rcutiny.c

rcu: optimize rcutiny

2011-05-05 23:16:59 -07:00

rcutorture.c

rcu: mark rcutorture boosting callback as being on-stack

2011-05-05 23:16:57 -07:00

rcutree_plugin.h

Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"

2011-05-19 23:25:29 +02:00

rcutree_trace.c

Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"

2011-05-19 23:25:29 +02:00

rcutree.c

Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"

2011-05-19 23:25:29 +02:00

rcutree.h

Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"

2011-05-19 23:25:29 +02:00

relay.c

…

res_counter.c

memcg: res_counter_read_u64(): fix potential races on 32-bit machines

2011-03-23 19:46:22 -07:00

resource.c

…

rtmutex_common.h

…

rtmutex-debug.c

…

rtmutex-debug.h

…

rtmutex-tester.c

…

rtmutex.c

…

rtmutex.h

…

rwsem.c

…

sched_autogroup.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

sched_autogroup.h

…

sched_clock.c

…

sched_cpupri.c

…

sched_cpupri.h

…

sched_debug.c

sched: Get rid of lock_depth

2011-04-24 13:18:38 +02:00

sched_fair.c

sched: Remove unused 'this_best_prio arg' from balance_tasks()

2011-05-04 09:07:21 +02:00

sched_features.h

sched: Move the second half of ttwu() to the remote cpu

2011-04-14 08:52:41 +02:00

sched_idletask.c

sched: Drop the rq argument to sched_class::select_task_rq()

2011-04-14 08:52:36 +02:00

sched_rt.c

Merge branches 'sched-core-for-linus' and 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 17:41:22 -07:00

sched_stats.h

…

sched_stoptask.c

sched: Drop the rq argument to sched_class::select_task_rq()

2011-04-14 08:52:36 +02:00

sched.c

sched: Fix and optimise calculation of the weight-inverse

2011-05-16 11:01:18 +02:00

seccomp.c

…

semaphore.c

…

signal.c

signal.c: fix erroneous syscall kernel-doc

2011-04-08 11:05:24 -07:00

smp.c

smp: move smp setup functions to kernel/smp.c

2011-03-22 17:44:11 -07:00

softirq.c

rcu: move TREE_RCU from softirq to kthread

2011-05-05 23:16:54 -07:00

spinlock.c

…

srcu.c

…

stacktrace.c

…

stop_machine.c

kthread: use kthread_create_on_node()

2011-03-22 17:44:01 -07:00

sys_ni.c

vfs: Add open by file handle support

2011-03-15 02:21:44 -04:00

sys.c

Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

2011-05-19 18:24:11 -07:00

sysctl_binary.c

open-style analog of vfs_path_lookup()

2011-03-14 09:15:28 -04:00

sysctl_check.c

sysctl_check: drop dead code

2011-03-23 19:46:51 -07:00

sysctl.c

watchdog: Disable watchdog when thresh is zero

2011-05-23 11:58:59 +02:00

taskstats.c

taskstats: use appropriate printk priority level

2011-03-23 19:47:14 -07:00

test_kprobes.c

…

time.c

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-03-15 18:53:35 -07:00

timeconst.pl

…

timer.c

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-03-15 18:53:35 -07:00

tracepoint.c

jump label: Introduce static_branch() interface

2011-04-04 12:48:08 -04:00

tsacct.c

…

uid16.c

userns: user namespaces: convert several capable() calls

2011-03-23 19:47:08 -07:00

up.c

…

user_namespace.c

…

user-return-notifier.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

user.c

userns: add a user_namespace as creator/owner of uts_namespace

2011-03-23 19:46:59 -07:00

utsname_sysctl.c

…

utsname.c

userns: allow sethostname in a container

2011-03-23 19:47:03 -07:00

wait.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

watchdog.c

watchdog: Disable watchdog when thresh is zero

2011-05-23 11:58:59 +02:00

workqueue_sched.h

…

workqueue.c

workqueue: fix deadlock in worker_maybe_bind_and_lock()

2011-04-29 18:08:37 +02:00