Joe Lawrence 789cbbeca4 workqueue: Add quiescent state between work items ... Similar to the stop_machine deadlock scenario on !PREEMPT kernels addressed in b22ce2785d "workqueue: cond_resched() after processing each work item", kworker threads requeueing back-to-back with zero jiffy delay can stall RCU. The cond_resched call introduced in that fix will yield only iff there are other higher priority tasks to run, so force a quiescent RCU state between work items. Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com> Link: https://lkml.kernel.org/r/20140926105227.01325697@jlaw-desktop.mno.stratus.com Link: https://lkml.kernel.org/r/20140929115445.40221d8e@jlaw-desktop.mno.stratus.com Fixes: b22ce2785d ("workqueue: cond_resched() after processing each work item") Cc: <stable@vger.kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>		2014-10-06 05:57:43 -07:00
..
bpf
debug
events	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-24 16:16:55 -07:00
gcov	kernel/gcov/fs.c: remove unnecessary null test before debugfs_remove	2014-08-08 15:57:24 -07:00
irq	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-05 17:38:45 -07:00
locking	locktorture: Cleanup header usage	2014-09-30 00:10:02 -07:00
power	Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'	2014-08-11 23:19:48 +02:00
printk	printk: Add function to return log buffer address and size	2014-08-13 15:13:44 +10:00
rcu	rcu: Eliminate deadlock between CPU hotplug and expedited grace periods	2014-09-18 16:22:27 -07:00
sched	Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'	2014-08-11 23:19:48 +02:00
time	timekeeping: Another fix to the VSYSCALL_OLD update_vsyscall	2014-08-14 11:04:11 -06:00
trace	ftrace: Use current addr when converting to nop in __ftrace_replace_code()	2014-08-22 21:04:35 -04:00
.gitignore
acct.c	kernel/acct.c: fix coding style warnings and errors	2014-08-08 15:57:27 -07:00
async.c
audit.c
audit.h
audit_tree.c
audit_watch.c
auditfilter.c	kernel/auditfilter.c: replace count*size kmalloc by kcalloc	2014-08-06 18:01:12 -07:00
auditsc.c
backtracetest.c
bounds.c	page-cgroup: get rid of NR_PCG_FLAGS	2014-08-08 15:57:18 -07:00
capability.c
cgroup.c
cgroup_freezer.c
compat.c
configs.c
context_tracking.c
cpu.c	rcu: Eliminate deadlock between CPU hotplug and expedited grace periods	2014-09-18 16:22:27 -07:00
cpu_pm.c
cpuset.c
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	rcu: Make TASKS_RCU handle tasks that are almost done exiting	2014-09-07 16:27:22 -07:00
extable.c
fork.c	seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock	2014-08-11 13:29:12 -07:00
freezer.c
futex.c
futex_compat.c
groups.c
hung_task.c
irq_work.c
jump_label.c
kallsyms.c	kernel/kallsyms.c: fix %pB when there's no symbol at the address	2014-08-08 15:57:18 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c	kexec: verify the signature of signed PE bzImage	2014-08-08 15:57:33 -07:00
kmod.c
kprobes.c	kprobes: Skip kretprobe hit in NMI context to avoid deadlock	2014-08-08 10:38:04 +02:00
ksysfs.c
kthread.c
latencytop.c
Makefile	bin2c: move bin2c in scripts/basic	2014-08-08 15:57:32 -07:00
module-internal.h
module.c	module: Clean up ro/nx after early module load failures	2014-08-16 04:47:00 +09:30
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c	panic: add TAINT_SOFTLOCKUP	2014-08-08 15:57:24 -07:00
params.c
pid.c
pid_namespace.c
profile.c
ptrace.c
range.c
reboot.c
relay.c
res_counter.c
resource.c	resource: provide new functions to walk through resources	2014-08-08 15:57:32 -07:00
seccomp.c	seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock	2014-08-11 13:29:12 -07:00
signal.c	Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc	2014-08-09 09:58:12 -07:00
smp.c	kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path	2014-08-06 18:01:22 -07:00
smpboot.c
smpboot.h
softirq.c	rcu: Per-CPU operation cleanups to rcu_*_qs() functions	2014-09-07 16:27:35 -07:00
stacktrace.c
stop_machine.c
sys.c
sys_ni.c	kexec: new syscall kexec_file_load() declaration	2014-08-08 15:57:32 -07:00
sysctl.c	rcutorture: Rename rcutorture_runnable parameter	2014-09-16 13:41:44 -07:00
sysctl_binary.c
system_certificates.S
system_keyring.c
task_work.c
taskstats.c
test_kprobes.c	kernel/test_kprobes.c: use current logging functions	2014-08-08 15:57:18 -07:00
torture.c	torture: Address race in module cleanup	2014-09-16 13:41:06 -07:00
tracepoint.c
tsacct.c
uid16.c
up.c
user-return-notifier.c
user.c
user_namespace.c	proc: constify seq_operations	2014-08-08 15:57:22 -07:00
utsname.c
utsname_sysctl.c
watchdog.c	panic: add TAINT_SOFTLOCKUP	2014-08-08 15:57:24 -07:00
workqueue.c	workqueue: Add quiescent state between work items	2014-10-06 05:57:43 -07:00
workqueue_internal.h