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ed7c0feede
linux/kernel
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Oleg Nesterov ed7c0feede make queue_delayed_work() friendly to flush_fork() 
Currently typeof(delayed_work->work.data) is

	"struct workqueue_struct" when the timer is pending

	"struct cpu_workqueue_struct" whe the work is queued

This makes impossible to use flush_fork(delayed_work->work) in addition
to cancel_delayed_work/cancel_rearming_delayed_work, not good.

Change queue_delayed_work/delayed_work_timer_fn to use cwq, not wq. This
complicates (and uglifies) these functions a little bit, but alows us to
use flush_fork(dwork) and imho makes the whole code more consistent.

Also, document the fact that cancel_rearming_delayed_work() doesn't garantee
the completion of work->func() upon return.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:52 -07:00
..
irq Fix Linuxdoc comment 2007-05-09 12:30:48 -07:00
power PM: Separate hibernation code from suspend code 2007-05-09 12:30:48 -07:00
time Fix printk format warnings in timer_list.c 2007-05-09 12:30:50 -07:00
.gitignore
acct.c
audit.c audit: add spaces on either side of case "..." operator. 2007-05-08 11:15:09 -07:00
audit.h
auditfilter.c
auditsc.c [PATCH] fix deadlock in audit_log_task_context() 2007-03-14 15:27:48 -07:00
capability.c
compat.c
configs.c use simple_read_from_buffer in kernel/ 2007-05-09 12:30:49 -07:00
cpu.c call cpu_chain with CPU_DOWN_FAILED if CPU_DOWN_PREPARE failed 2007-05-09 12:30:51 -07:00
cpuset.c use simple_read_from_buffer in kernel/ 2007-05-09 12:30:49 -07:00
delayacct.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
die_notifier.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
dma.c
exec_domain.c
exit.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
extable.c
fork.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
futex_compat.c
futex.c futex: restartable futex_wait 2007-05-08 11:15:03 -07:00
hrtimer.c export hrtimer_forward 2007-05-08 11:15:15 -07:00
itimer.c The scheduled -EINVAL for invalid timevals in setitimer 2007-05-08 11:15:13 -07:00
kallsyms.c kallsyms: cleanup: use seq_release_private() where appropriate 2007-05-08 11:15:09 -07:00
Kconfig.hz
Kconfig.preempt
kexec.c kdump/kexec: calculate note size at compile time 2007-05-08 11:15:07 -07:00
kfifo.c
kmod.c Fix kevent's childs priority greediness 2007-05-08 11:15:07 -07:00
kprobes.c Kprobes: The ON/OFF knob thru debugfs 2007-05-08 11:15:19 -07:00
ksysfs.c remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
kthread.c
latency.c
lockdep_internals.h
lockdep_proc.c
lockdep.c lockdep: removed unused ip argument in mark_lock & mark_held_locks 2007-05-08 11:15:13 -07:00
Makefile move die notifier handling to common code 2007-05-08 11:15:04 -07:00
module.c Fix race between cat /proc/slab_allocators and rmmod 2007-05-08 11:15:08 -07:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
nsproxy.c Merge sys_clone()/sys_unshare() nsproxy and namespace handling 2007-05-08 11:15:00 -07:00
panic.c
params.c kernel/params.c: fix lying comment for param_array() 2007-05-08 11:15:08 -07:00
pid.c Merge sys_clone()/sys_unshare() nsproxy and namespace handling 2007-05-08 11:15:00 -07:00
posix-cpu-timers.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
posix-timers.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
printk.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
profile.c
ptrace.c
rcupdate.c
rcutorture.c rcutorture: Remove redundant assignment to cur_ops in for loop 2007-05-08 11:15:17 -07:00
relay.c relay: use plain timer instead of delayed work 2007-05-09 12:30:51 -07:00
resource.c libata/IDE: remove combined mode quirk 2007-04-28 14:15:59 -04:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c Lockdep treats down_write_trylock like regular down_write 2007-05-08 11:15:09 -07:00
sched.c Eliminate lock_cpu_hotplug in kernel/schedc 2007-05-09 12:30:51 -07:00
seccomp.c
signal.c Move sig_kernel_* et al macros to linux/signal.h 2007-05-09 12:30:49 -07:00
softirq.c
softlockup.c add touch_all_softlockup_watchdogs() 2007-05-08 11:15:06 -07:00
spinlock.c
srcu.c
stacktrace.c
stop_machine.c Use stop_machine_run in the Intel RNG driver 2007-05-08 11:15:00 -07:00
sys_ni.c
sys.c Extend notifier_call_chain to count nr_calls made 2007-05-09 12:30:51 -07:00
sysctl.c proc: maps protection 2007-05-08 11:15:02 -07:00
taskstats.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
time.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
timer.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
tsacct.c
uid16.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
user.c
utsname_sysctl.c
utsname.c Merge sys_clone()/sys_unshare() nsproxy and namespace handling 2007-05-08 11:15:00 -07:00
wait.c
workqueue.c make queue_delayed_work() friendly to flush_fork() 2007-05-09 12:30:52 -07:00