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Tejun Heo d6cc76856d PM / Freezer: Revert 27920651fe "PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too" 
Commit 27920651fe "PM / Freezer: Make fake_signal_wake_up() wake
TASK_KILLABLE tasks too" updated fake_signal_wake_up() used by freezer
to wake up KILLABLE tasks.  Sending unsolicited wakeups to tasks in
killable sleep is dangerous as there are code paths which depend on
tasks not waking up spuriously from KILLABLE sleep.

For example. sys_read() or page can sleep in TASK_KILLABLE assuming
that wait/down/whatever _killable can only fail if we can not return
to the usermode.  TASK_TRACED is another obvious example.

The previous patch updated wait_event_freezekillable() such that it
doesn't depend on the spurious wakeup.  This patch reverts the
offending commit.

Note that the spurious KILLABLE wakeup had other implicit effects in
KILLABLE sleeps in nfs and cifs and those will need further updates to
regain freezekillable behavior.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-04 22:28:15 +01:00
..
debug
kgdb: follow rename pack_hex_byte() to hex_byte_pack()
2011-10-31 17:30:56 -07:00
events
Revert "perf: Add PM notifiers to fix CPU hotplug races"
2011-11-03 07:44:04 -07:00
gcov
gcov: disable CONSTRUCTORS for UML
2011-07-26 16:49:45 -07:00
irq
Merge branch 'next/dt' of git://git.linaro.org/people/arnd/arm-soc
2011-11-01 21:02:35 -07:00
power
PM / QoS: Remove redundant check
2011-11-04 22:28:14 +01:00
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
pass a struct path to vfs_statfs
2010-08-09 16:48:42 -04:00
async.c
async: uninitialized warning corrections
2011-09-15 14:22:28 +02:00
audit_tree.c
audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()
2011-07-20 14:10:11 -07:00
audit_watch.c
kill path_lookup()
2011-03-14 09:15:23 -04:00
audit.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
audit.h
audit: make functions static
2010-10-30 01:42:19 -04:00
auditfilter.c
netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms
2011-03-03 10:55:40 -08:00
auditsc.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
backtracetest.c
…
bounds.c
memcg: remove direct page_cgroup-to-page pointer
2011-03-23 19:46:28 -07:00
capability.c
Merge branch 'master' into next
2011-05-19 18:51:57 +10:00
cgroup_freezer.c
cgroups: add per-thread subsystem callbacks
2011-05-26 17:12:34 -07:00
cgroup.c
memcg: replace ss->id_lock with a rwlock
2011-11-02 16:07:03 -07:00
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
PM / Sleep: Fix race between CPU hotplug and freezer
2011-11-04 22:28:09 +01:00
cpuset.c
cpusets: avoid looping when storing to mems_allowed if one node remains set
2011-11-02 16:07:00 -07:00
crash_dump.c
[S390] kdump: Add size to elfcorehdr kernel parameter
2011-10-30 15:16:41 +01:00
cred.c
Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security
2011-10-25 09:45:31 +02:00
delayacct.c
KVM: Steal time implementation
2011-07-14 12:59:14 +03:00
dma.c
…
elfcore.c
…
exec_domain.c
sys_personality: remove the bogus checks in sys_personality()->__set_personality() path
2010-08-09 20:45:05 -07:00
exit.c
oom: remove oom_disable_count
2011-10-31 17:30:45 -07:00
extable.c
extable, core_kernel_data(): Make sure all archs define _sdata
2011-05-20 08:56:56 +02:00
fork.c
oom: remove oom_disable_count
2011-10-31 17:30:45 -07:00
freezer.c
PM / Freezer: Revert 27920651fe "PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too"
2011-11-04 22:28:15 +01:00
futex_compat.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
futex.c
Merge branch 'master' into for-next
2011-09-15 15:08:18 +02:00
groups.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
hrtimer.c
hrtimers: Fix typo causing erratic timers
2011-05-25 15:31:58 -07:00
hung_task.c
watchdog, hung_task_timeout: Add Kconfig configurable default
2011-04-28 09:13:17 +02:00
irq_work.c
llist: Add llist_next()
2011-10-04 12:43:53 +02:00
itimer.c
…
jump_label.c
jump_label: Fix jump_label update for modules
2011-06-29 09:59:17 -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
arch:Kconfig.locks Remove unused config option.
2011-04-10 17:01:05 +02:00
Kconfig.preempt
sched: Isolate preempt counting in its own config option
2011-06-10 15:15:40 +02:00
kexec.c
[S390] kdump: Add infrastructure for unmapping crashkernel memory
2011-10-30 15:16:42 +01:00
kfifo.c
kfifo: fix scatterlist usage
2010-10-01 10:50:58 -07:00
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
kernel/ksysfs.c: expose file_caps_enabled in sysfs
2011-04-19 16:45:51 -07:00
kthread.c
cpuset: Fix cpuset_cpus_allowed_fallback(), don't update tsk->rt.nr_cpus_allowed
2011-05-28 17:02:57 +02:00
latencytop.c
locking, latencytop: Annotate latency_lock as raw
2011-09-13 11:12:02 +02:00
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
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
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
lockdep, mutex: provide mutex_lock_nest_lock
2011-05-25 08:39:17 -07:00
mutex.h
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
notifier.c
notifiers: sys: move reboot notifiers into reboot.h
2011-07-25 20:57:14 -07:00
nsproxy.c
make sure that nsproxy_cache is initialized early enough
2011-07-20 01:44:07 -04:00
padata.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
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
pidns: call pid_ns_prepare_proc() from create_pid_namespace()
2011-03-23 19:46:58 -07:00
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
posix-timers: RCU conversion
2011-05-24 12:10:51 +02:00
printk.c
printk: remove bounds checking for log_prefix
2011-10-31 17:30:53 -07:00
profile.c
kernel/profile.c: remove some duplicate code from profile_hits()
2011-05-26 17:12:37 -07:00
ptrace.c
ptrace: PTRACE_LISTEN forgets to unlock ->siglock
2011-09-25 11:02:00 -07:00
range.c
kernel/range.c: fix clean_sort_range() for the case of full array
2010-11-12 07:55:31 -08:00
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
Clean up relay_alloc_page_array() slightly by using vzalloc rather than vmalloc and memset
2010-11-05 08:21:34 -07:00
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
Resource: fix wrong resource window calculation
2011-09-29 20:04:34 -07:00
rtmutex_common.h
rtmutex: Simplify PI algorithm and make highest prio task get lock
2011-01-27 21:13:51 -05:00
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
…
rtmutex-tester.c
rtmutex: tester: Remove the remaining BKL leftovers
2011-02-22 22:07:22 +01:00
rtmutex.c
rcu: Permit rt_mutex_unlock() with irqs disabled
2011-09-28 21:38:43 -07:00
rtmutex.h
…
rwsem.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
sched_autogroup.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
sched_autogroup.h
sched: Skip autogroup when looking for all rt sched groups
2011-07-01 10:39:08 +02:00
sched_clock.c
sched: Add some clock info to sched_debug
2010-11-23 10:29:08 +01:00
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
sched: Get rid of lock_depth
2011-04-24 13:18:38 +02:00
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: Drop the rq argument to sched_class::select_task_rq()
2011-04-14 08:52:36 +02:00
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
…
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
generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts
2011-06-17 10:17:12 +02:00
softirq.c
softirq,rcu: Inform RCU of irq_exit() activity
2011-07-20 10:50:12 -07:00
spinlock.c
…
srcu.c
rcu: demote SRCU_SYNCHRONIZE_DELAY from kernel-parameter status
2011-01-14 04:56:49 -08:00
stacktrace.c
stack_trace: Add weak save_stack_trace_regs()
2011-06-14 22:48:52 -04:00
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
sysctl: add support for poll()
2011-11-02 16:07:02 -07:00
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
Merge branch 'akpm' (Andrew's incoming)
2011-10-31 17:46:07 -07:00
taskstats.c
Make TASKSTATS require root access
2011-09-19 17:04:37 -07:00
test_kprobes.c
kprobes: Fix selftest to clear flags field for reusing probes
2010-10-14 08:55:27 +02:00
time.c
time: Change jiffies_to_clock_t() argument type to unsigned long
2011-09-21 10:28:51 +02:00
timeconst.pl
…
timer.c
timers: Consider slack value in mod_timer()
2011-06-03 15:02:32 +02:00
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
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
up.c
…
user_namespace.c
user_ns: improve the user_ns on-the-slab packaging
2011-01-13 08:03:18 -08:00
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
sysctl: add support for poll()
2011-11-02 16:07:02 -07:00
utsname.c
ns proc: Add support for the uts namespace
2011-05-10 14:35:35 -07:00
wait.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
watchdog.c
watchdog: move watchdog_*_all_cpus under CONFIG_SYSCTL
2011-10-31 17:30:53 -07:00
workqueue_sched.h
…
workqueue.c
workqueue: lock cwq access in drain_workqueue
2011-09-14 18:09:38 -07:00