Tejun Heo c68eee14ec async: use ULLONG_MAX for infinity cookie value ... Currently, next_cookie is used as the infinity value. In most cases, this should work fine but it theoretically could bring subtle behavior difference between async_synchronize_full() and async_synchronize_full_domain(). async_synchronize_full() keeps waiting until there's no registered async_entry left regardless of what next_cookie was when the function was called. It guarantees that the queue is completely drained at least once before returning. However, async_synchronize_full_domain() doesn't. It synchronizes upto next_cookie and if further async jobs are queued after the next_cookie value to synchronize is decided, they won't be waited for. For unrelated async jobs, the behavior difference doesn't matter; however, if async jobs which are related (nested or otherwise) to the executing ones are queued while sychronization is in progress, the resulting behavior difference could be problematic. This can be easily fixed by using ULLONG_MAX as the infinity value instead. Define ASYNC_COOKIE_MAX as ULLONG_MAX and use it as the infinity value for synchronization. This makes async_synchronize_full_domain() fully drain the domain at least once before returning, making its behavior match async_synchronize_full(). Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Dan Williams <djbw@fb.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>		2013-01-23 09:32:30 -08:00
..
debug	module: add new state MODULE_STATE_UNFORMED.	2013-01-12 13:27:05 +10:30
events	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-12-17 15:44:47 -08:00
gcov
irq	irq: tsk->comm is an array	2012-12-18 15:02:11 -08:00
power	Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2012-12-12 08:18:24 -08:00
sched	Merge branch 'master' into for-3.9-async	2013-01-23 09:31:01 -08:00
time	Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-12-13 15:31:08 -08:00
trace	ftrace: Be first to run code modification on modules	2013-01-21 13:21:50 -05:00
.gitignore
acct.c	vfs: make path_openat take a struct filename pointer	2012-10-12 20:15:09 -04:00
async.c	async: use ULLONG_MAX for infinity cookie value	2013-01-23 09:32:30 -08:00
audit.c	kernel/audit.c: avoid negative sleep durations	2013-01-11 14:54:56 -08:00
audit.h	audit: optimize audit_compare_dname_path	2012-10-12 00:32:02 -04:00
audit_tree.c	audit: catch possible NULL audit buffers	2013-01-11 14:54:55 -08:00
audit_watch.c	audit: catch possible NULL audit buffers	2013-01-11 14:54:55 -08:00
auditfilter.c	audit: fix auditfilter.c kernel-doc warnings	2013-01-10 14:35:23 -08:00
auditsc.c	audit: catch possible NULL audit buffers	2013-01-11 14:54:55 -08:00
backtracetest.c
bounds.c
capability.c
cgroup.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-12-17 20:58:12 -08:00
cgroup_freezer.c	cgroup: rename ->create/post_create/pre_destroy/destroy() to ->css_alloc/online/offline/free()	2012-11-19 08:13:38 -08:00
compat.c	x32: fix sigtimedwait	2012-12-26 01:15:03 -05:00
configs.c
context_tracking.c	context_tracking: New context tracking susbsystem	2012-11-30 11:40:07 -08:00
cpu.c	Merge branch 'x86-bsp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-12-11 19:56:33 -08:00
cpu_pm.c
cpuset.c	cpuset: use N_MEMORY instead N_HIGH_MEMORY	2012-12-12 17:38:32 -08:00
crash_dump.c
cred.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-12-18 10:55:28 -08:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-12-17 15:44:47 -08:00
extable.c
fork.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-01-20 13:58:48 -08:00
freezer.c	freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()	2012-10-26 14:27:49 -07:00
futex.c	futex: avoid wake_futex() for a PI futex_q	2012-11-26 17:41:24 -08:00
futex_compat.c
groups.c
hrtimer.c
hung_task.c
irq_work.c
itimer.c
jump_label.c
kallsyms.c
kcmp.c	kcmp: include linux/ptrace.h	2012-12-20 17:40:19 -08:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks	locking: Adjust spin lock inlining Kconfig options	2012-09-13 17:56:13 +02:00
Kconfig.preempt
kexec.c	kdump: remove unneeded include	2012-10-06 03:05:19 +09:00
kfifo.c
kmod.c	Merge branch 'master' into for-3.9-async	2013-01-23 09:31:01 -08:00
kprobes.c	kprobes/x86: Fix to support jprobes on ftrace-based kprobe	2012-09-13 22:52:11 -04:00
ksysfs.c	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-12-11 18:10:49 -08:00
kthread.c	kthread: use N_MEMORY instead N_HIGH_MEMORY	2012-12-12 17:38:33 -08:00
latencytop.c
lglock.c
lockdep.c
lockdep_internals.h
lockdep_proc.c	lockdep: Use KSYM_NAME_LEN'ed buffer for __get_key_name()	2012-10-24 12:39:09 +02:00
lockdep_states.h
Makefile	Nothing all that exciting; a new module-from-fd syscall for those who want	2012-12-19 07:55:08 -08:00
modsign_certificate.S	MODSIGN: Avoid using .incbin in C source	2012-12-14 13:06:44 +10:30
modsign_pubkey.c	keys: use keyring_alloc() to create module signing keyring	2012-12-20 17:40:21 -08:00
module-internal.h	MODSIGN: Move the magic string to the end of a module and eliminate the search	2012-10-19 17:30:40 -07:00
module.c	module: fix missing module_mutex unlock	2013-01-20 20:22:58 -08:00
module_signing.c	MODSIGN: Don't use enum-type bitfields in module signature info block	2012-12-05 11:27:24 +10:30
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
nsproxy.c	userns: Implement unshare of the user namespace	2012-11-20 04:18:14 -08:00
padata.c	padata: use __this_cpu_read per-cpu helper	2012-12-06 17:16:23 +08:00
panic.c
params.c
pid.c	pidns: Stop pid allocation when init dies	2012-12-25 16:10:05 -08:00
pid_namespace.c	pidns: Stop pid allocation when init dies	2012-12-25 16:10:05 -08:00
posix-cpu-timers.c	A few /dev/random improvements for the v3.8 merge window.	2012-12-19 20:23:37 -08:00
posix-timers.c
printk.c	printk: fix incorrect length from print_time() when seconds > 99999	2013-01-04 16:11:48 -08:00
profile.c	propagate name change to comments in kernel source	2012-12-06 10:39:54 +01:00
ptrace.c	ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL	2013-01-22 10:08:00 -08:00
range.c
rcu.h	rcu: Add a module parameter to force use of expedited RCU primitives	2012-10-23 14:54:08 -07:00
rcupdate.c	rcu: Add a module parameter to force use of expedited RCU primitives	2012-10-23 14:54:08 -07:00
rcutiny.c	rcu: Fix TINY_RCU rcu_is_cpu_rrupt_from_idle check	2012-11-13 14:08:34 -08:00
rcutiny_plugin.h	rcu: Add a module parameter to force use of expedited RCU primitives	2012-10-23 14:54:08 -07:00
rcutorture.c	Merge branches 'urgent.2012.10.27a', 'doc.2012.11.16a', 'fixes.2012.11.13a', 'srcu.2012.10.27a', 'stall.2012.11.13a', 'tracing.2012.11.08a' and 'idle.2012.10.24a' into HEAD	2012-11-16 09:59:58 -08:00
rcutree.c	context_tracking: New context tracking susbsystem	2012-11-30 11:40:07 -08:00
rcutree.h	rcu: Separate accounting of callbacks from callback-free CPUs	2012-11-16 10:05:57 -08:00
rcutree_plugin.h	rcu: Separate accounting of callbacks from callback-free CPUs	2012-11-16 10:05:57 -08:00
rcutree_trace.c	rcu: Separate accounting of callbacks from callback-free CPUs	2012-11-16 10:05:57 -08:00
relay.c
res_counter.c	res_counter: return amount of charges after res_counter_uncharge()	2012-12-18 15:02:12 -08:00
resource.c	kernel/resource.c: fix stack overflow in __reserve_region_with_split()	2012-10-06 03:05:31 +09:00
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rtmutex_common.h
rwsem.c	lockdep, rwsem: provide down_write_nest_lock()	2013-01-11 14:54:55 -08:00
seccomp.c	seccomp: Make syscall skipping and nr changes more consistent	2012-10-02 21:14:29 +10:00
semaphore.c
signal.c	ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL	2013-01-22 10:08:00 -08:00
smp.c
smpboot.c
smpboot.h
softirq.c	cputime: Specialize irq vtime hooks	2012-10-29 21:31:32 +01:00
spinlock.c
srcu.c	Merge branches 'urgent.2012.10.27a', 'doc.2012.11.16a', 'fixes.2012.11.13a', 'srcu.2012.10.27a', 'stall.2012.11.13a', 'tracing.2012.11.08a' and 'idle.2012.10.24a' into HEAD	2012-11-16 09:59:58 -08:00
stacktrace.c
stop_machine.c
sys.c	cputime: Rename thread_group_times to thread_group_cputime_adjusted	2012-11-28 17:07:57 +01:00
sys_ni.c	module: add syscall to load module from fd	2012-12-14 13:05:22 +10:30
sysctl.c	Automatic NUMA Balancing V11	2012-12-16 15:18:08 -08:00
sysctl_binary.c	pidns: Use task_active_pid_ns where appropriate	2012-11-19 05:59:09 -08:00
task_work.c
taskstats.c	taskstats: cgroupstats_user_cmd() may leak on error	2012-10-06 03:05:31 +09:00
test_kprobes.c
time.c	time: Move update_vsyscall definitions to timekeeper_internal.h	2012-09-24 12:38:06 -04:00
timeconst.pl
timer.c	timers: Fix endless looping between cascade() and internal_add_timer()	2012-10-09 21:27:14 +02:00
tracepoint.c
tsacct.c	userns: Convert taskstats to handle the user and pid namespaces.	2012-09-18 01:01:32 -07:00
uid16.c
up.c
user-return-notifier.c
user.c	proc: Usable inode numbers for the namespace file descriptors.	2012-11-20 04:19:49 -08:00
user_namespace.c	userns: Fix typo in description of the limitation of userns_install	2012-12-14 18:36:36 -08:00
utsname.c	userns: Require CAP_SYS_ADMIN for most uses of setns.	2012-12-14 16:12:03 -08:00
utsname_sysctl.c
wait.c	propagate name change to comments in kernel source	2012-12-06 10:39:54 +01:00
watchdog.c	watchdog: Fix disable/enable regression	2012-12-19 12:10:33 -08:00
workqueue.c	workqueue: move struct worker definition to workqueue_internal.h	2013-01-18 14:05:55 -08:00
workqueue_internal.h	workqueue: implement current_is_async()	2013-01-18 14:05:56 -08:00