Linus Torvalds 11d4616bd0 futex: revert back to the explicit waiter counting code ... Srikar Dronamraju reports that commit b0c29f79ec ("futexes: Avoid taking the hb->lock if there's nothing to wake up") causes java threads getting stuck on futexes when runing specjbb on a power7 numa box. The cause appears to be that the powerpc spinlocks aren't using the same ticket lock model that we use on x86 (and other) architectures, which in turn result in the "spin_is_locked()" test in hb_waiters_pending() occasionally reporting an unlocked spinlock even when there are pending waiters. So this reinstates Davidlohr Bueso's original explicit waiter counting code, which I had convinced Davidlohr to drop in favor of figuring out the pending waiters by just using the existing state of the spinlock and the wait queue. Reported-and-tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Original-code-by: Davidlohr Bueso <davidlohr@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-03-20 22:11:17 -07:00
..
cpu	sched/preempt: Fix up missed PREEMPT_NEED_RESCHED folding	2014-01-13 17:38:55 +01:00
debug	kgdb/kdb: Fix no KDB config problem	2014-01-25 08:55:09 +01:00
events	perf: Fix hotplug splat	2014-02-27 12:38:03 +01:00
gcov	…
irq	genirq: Include missing header file in irqdomain.c	2014-02-27 13:29:35 +01:00
locking	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-20 10:42:08 -08:00
power	arm, pm, vmpressure: add missing slab.h includes	2014-02-03 13:24:01 -05:00
printk	printk: fix syslog() overflowing user buffer	2014-02-17 12:24:45 -08:00
rcu	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-01-28 08:38:04 -08:00
sched	sched/clock: Prevent tracing recursion in sched_clock_cpu()	2014-03-11 11:33:48 +01:00
time	sched_clock: Prevent callers from seeing half-updated data	2014-02-19 17:07:22 +01:00
trace	tracing: Fix array size mismatch in format string	2014-03-20 13:21:05 -04:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	…
acct.c	…
async.c	…
audit.c	audit: Update kdoc for audit_send_reply and audit_list_rules_send	2014-03-08 15:31:54 -08:00
audit.h	audit: Use struct net not pid_t to remember the network namespce to reply in	2014-02-28 04:04:33 -08:00
audit_tree.c	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
audit_watch.c	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
auditfilter.c	audit: Update kdoc for audit_send_reply and audit_list_rules_send	2014-03-08 15:31:54 -08:00
auditsc.c	execve: use 'struct filename *' for executable name passing	2014-02-05 12:54:53 -08:00
backtracetest.c	…
bounds.c	…
capability.c	audit: Simplify and correct audit_log_capset	2014-01-13 22:26:48 -05:00
cgroup.c	cgroup: fix a failure path in create_css()	2014-03-18 17:15:36 -04:00
cgroup_freezer.c	…
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	…
cpu_pm.c	…
cpuset.c	cpuset: fix a race condition in __cpuset_node_allowed_softwall()	2014-02-27 09:39:54 -05:00
crash_dump.c	…
cred.c	…
delayacct.c	…
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	introduce for_each_thread() to replace the buggy while_each_thread()	2014-01-21 16:19:46 -08:00
extable.c	…
fork.c	exec: kill task_struct->did_exec	2014-01-23 16:37:02 -08:00
freezer.c	…
futex.c	futex: revert back to the explicit waiter counting code	2014-03-20 22:11:17 -07:00
futex_compat.c	…
groups.c	…
hrtimer.c	sched/deadline: Add SCHED_DEADLINE structures & implementation	2014-01-13 13:41:06 +01:00
hung_task.c	hung_task: Display every hung task warning	2014-01-25 12:13:33 +01:00
irq_work.c	…
itimer.c	…
jump_label.c	…
kallsyms.c	…
kcmp.c	…
kexec.c	kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()	2014-01-27 21:02:40 -08:00
kmod.c	execve: use 'struct filename *' for executable name passing	2014-02-05 12:54:53 -08:00
kprobes.c	…
ksysfs.c	kdump: fix exported size of vmcoreinfo note	2014-01-23 16:37:03 -08:00
kthread.c	…
latencytop.c	…
module-internal.h	…
module.c	module: Add missing newline in printk call.	2014-01-21 09:59:16 +10:30
module_signing.c	…
notifier.c	…
nsproxy.c	…
padata.c	…
panic.c	…
params.c	…
pid.c	…
pid_namespace.c	…
posix-cpu-timers.c	…
posix-timers.c	…
profile.c	mm: fix GFP_THISNODE callers and clarify	2014-03-10 17:26:19 -07:00
ptrace.c	…
range.c	…
reboot.c	…
relay.c	…
res_counter.c	…
resource.c	…
seccomp.c	…
signal.c	kernel/signal.c: change do_signal_stop/do_sigaction to use while_each_thread()	2014-01-23 16:37:02 -08:00
smp.c	kernel/smp.c: remove cpumask_ipi	2014-01-30 16:56:54 -08:00
smpboot.c	…
smpboot.h	…
softirq.c	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-31 09:02:51 -08:00
stacktrace.c	…
stop_machine.c	stop_machine: Fix^2 race between stop_two_cpus() and stop_cpus()	2014-03-11 11:33:47 +01:00
sys.c	kernel/sys.c: k_getrusage() can use while_each_thread()	2014-01-23 16:37:02 -08:00
sys_ni.c	…
sysctl.c	Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-31 08:59:46 -08:00
sysctl_binary.c	…
system_certificates.S	…
system_keyring.c	…
task_work.c	…
taskstats.c	…
test_kprobes.c	…
time.c	…
timeconst.bc	…
timer.c	…
tracepoint.c	tracing: Do not add event files for modules that fail tracepoints	2014-03-03 21:11:05 -05:00
tsacct.c	…
uid16.c	…
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	user_namespace.c: Remove duplicated word in comment	2014-02-20 11:58:35 -08:00
utsname.c	…
utsname_sysctl.c	…
watchdog.c	…
workqueue.c	workqueue: ensure @task is valid across kthread_stop()	2014-02-18 16:35:20 -05:00
workqueue_internal.h	…