Paul E. McKenney dd5d19bafd rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees ... When offlining CPUs from a multi-level tree, there is the possibility of offlining the last CPU from a given node when there are preempted RCU read-side critical sections that started life on one of the CPUs on that node. In this case, the corresponding tasks will be enqueued via the task_struct's rcu_node_entry list_head onto one of the rcu_node's blocked_tasks[] lists. These tasks need to be moved somewhere else so that they will prevent the current grace period from ending. That somewhere is the root rcu_node. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: akpm@linux-foundation.org Cc: mathieu.desnoyers@polymtl.ca Cc: josht@linux.vnet.ibm.com Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org LKML-Reference: <20090827215816.GA30472@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2009-08-29 15:34:39 +02:00
..
gcov	gcov: enable GCOV_PROFILE_ALL for x86_64	2009-06-18 13:03:58 -07:00
irq	genirq: prevent wakeup of freed irq thread	2009-08-13 23:09:27 +02:00
power	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
time	clocksource: Prevent NULL pointer dereference	2009-07-19 17:15:54 +02:00
trace	Remove double removal of blktrace directory	2009-08-12 18:50:08 +02:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.preempt	…
Makefile	rcu: Remove CONFIG_PREEMPT_RCU	2009-08-23 10:32:40 +02:00
acct.c	bsdacct: fix access to invalid filp in acct_on()	2009-06-30 18:56:00 -07:00
async.c	async: Fix lack of boot-time console due to insufficient synchronization	2009-06-08 12:31:53 -07:00
audit.c	Fix rule eviction order for AUDIT_DIR	2009-06-24 00:02:38 -04:00
audit.h	Fix rule eviction order for AUDIT_DIR	2009-06-24 00:02:38 -04:00
audit_tree.c	Fix rule eviction order for AUDIT_DIR	2009-06-24 00:02:38 -04:00
audit_watch.c	Audit: clean up all op= output to include string quoting	2009-06-24 00:00:52 -04:00
auditfilter.c	Audit: clean up all op= output to include string quoting	2009-06-24 00:00:52 -04:00
auditsc.c	Fix rule eviction order for AUDIT_DIR	2009-06-24 00:02:38 -04:00
backtracetest.c	…
bounds.c	…
capability.c	…
cgroup.c	cgroup avoid permanent sleep at rmdir	2009-07-29 19:10:35 -07:00
cgroup_debug.c	debug cgroup: remove unneeded cgroup_lock	2009-04-02 19:04:54 -07:00
cgroup_freezer.c	…
compat.c	signals: implement sys_rt_tgsigqueueinfo	2009-04-30 19:24:24 +02:00
configs.c	…
cpu.c	mm/init: cpu_hotplug_init() must be initialized before SLAB	2009-06-22 21:18:12 -07:00
cpuset.c	cpuset,mm: update tasks' mems_allowed in time	2009-06-16 19:47:31 -07:00
cred-internals.h	…
cred.c	CRED: Rename cred_exec_mutex to reflect that it's a guard against ptrace	2009-05-11 08:15:36 +10:00
delayacct.c	…
dma-coherent.c	…
dma.c	…
exec_domain.c	Get rid of indirect include of fs_struct.h	2009-03-31 23:00:27 -04:00
exit.c	rcu: Merge preemptable-RCU functionality into hierarchical RCU	2009-08-23 10:32:40 +02:00
extable.c	Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-04-05 11:04:19 -07:00
fork.c	rcu: Merge preemptable-RCU functionality into hierarchical RCU	2009-08-23 10:32:40 +02:00
freezer.c	sched: fix nr_uninterruptible accounting of frozen tasks really	2009-07-18 14:19:53 +02:00
futex.c	futex: Fix handling of bad requeue syscall pairing	2009-08-10 20:38:11 +02:00
futex_compat.c	futex: Fix compat_futex to be same as futex for REQUEUE_PI	2009-08-10 15:41:12 +02:00
groups.c	groups: move code to kernel/groups.c	2009-06-16 19:47:48 -07:00
hrtimer.c	hrtimer: Fix migration expiry check	2009-07-10 17:32:55 +02:00
hung_task.c	…
itimer.c	…
kallsyms.c	kernel/kallsyms.c: replace deprecated __initcall with device_initcall and fix whitespace	2009-06-09 22:37:52 +02:00
kexec.c	kexec: fix omitting offset in extended crashkernel syntax	2009-07-29 19:10:34 -07:00
kfifo.c	kernel/kfifo.c: replace conditional test with is_power_of_2()	2009-06-16 19:47:47 -07:00
kgdb.c	sysrq, intel_fb: fix sysrq g collision	2009-05-15 07:56:24 -05:00
kmod.c	headers: mnt_namespace.h redux	2009-07-08 09:31:56 -07:00
kprobes.c	kprobes: Use kernel_text_address() for checking probe address	2009-07-30 16:44:06 -07:00
ksysfs.c	…
kthread.c	update the comment in kthread_stop()	2009-07-27 12:15:46 -07:00
latencytop.c	…
lockdep.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
lockdep_internals.h	lockdep: increase MAX_LOCKDEP_ENTRIES and MAX_LOCKDEP_CHAINS	2009-05-12 19:59:52 +02:00
lockdep_proc.c	lockdep: Fix file mode of lock_stat	2009-08-07 11:58:38 +02:00
lockdep_states.h	…
marker.c	…
module.c	module: use MODULE_SYMBOL_PREFIX with module_layout	2009-07-27 12:15:45 -07:00
mutex-debug.c	…
mutex-debug.h	…
mutex.c	Merge branch 'linus' into perfcounters/core	2009-06-11 17:55:42 +02:00
mutex.h	…
notifier.c	…
ns_cgroup.c	cgroups: relax ns_can_attach checks to allow attaching to grandchild cgroups	2009-04-02 19:04:53 -07:00
nsproxy.c	nsproxy: extract create_nsproxy()	2009-06-18 13:03:56 -07:00
panic.c	trace: stop tracer in oops_enter()	2009-07-24 15:30:45 -04:00
params.c	module_param: allow 'bool' module_params to be bool, not just int.	2009-06-12 21:46:58 +09:30
perf_counter.c	perf_counter: Report the cloning task as parent on perf_counter_fork()	2009-08-13 16:17:15 +02:00
pid.c	kmemleak: Remove alloc_bootmem annotations introduced in the past	2009-07-09 17:07:02 +01:00
pid_namespace.c	pidns: rewrite copy_pid_ns()	2009-06-18 13:03:55 -07:00
pm_qos_params.c	…
posix-cpu-timers.c	posix_cpu_timers_exit_group(): Do not use thread_group_cputimer()	2009-08-08 18:30:25 +02:00
posix-timers.c	posix-timers: Fix oops in clock_nanosleep() with CLOCK_MONOTONIC_RAW	2009-08-04 10:16:41 +02:00
printk.c	printk: Add KERN_DEFAULT printk log-level	2009-06-16 11:02:28 -07:00
profile.c	profile: suppress warning about large allocations when profile=1 is specified	2009-07-29 19:10:36 -07:00
ptrace.c	cred_guard_mutex: do not return -EINTR to user-space	2009-07-06 13:57:04 -07:00
rcupdate.c	rcu: Delay rcu_barrier() wait until beginning of next CPU-hotunplug operation.	2009-08-19 13:58:54 +02:00
rcutorture.c	rcu: Add synchronize_sched_expedited() torture tests	2009-07-03 10:02:29 +02:00
rcutree.c	rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees	2009-08-29 15:34:39 +02:00
rcutree.h	rcu: Merge preemptable-RCU functionality into hierarchical RCU	2009-08-23 10:32:40 +02:00
rcutree_plugin.h	rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees	2009-08-29 15:34:39 +02:00
rcutree_trace.c	rcu: Merge preemptable-RCU functionality into hierarchical RCU	2009-08-23 10:32:40 +02:00
relay.c	Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-04-05 11:04:19 -07:00
res_counter.c	memcg: add interface to reset limits	2009-06-18 13:03:48 -07:00
resource.c	kernel/resource.c: fix sign extension in reserve_setup()	2009-06-30 18:56:00 -07:00
rtmutex-debug.c	…
rtmutex-debug.h	…
rtmutex-tester.c	…
rtmutex.c	rtmutex: Avoid deadlock in rt_mutex_start_proxy_lock()	2009-08-06 05:50:21 +02:00
rtmutex.h	…
rtmutex_common.h	rt_mutex: add proxy lock routines	2009-04-06 11:14:02 +02:00
rwsem.c	…
sched.c	rcu: Renamings to increase RCU clarity	2009-08-23 10:32:37 +02:00
sched_clock.c	sched: Fix fallback sched_clock()'s offset when using jiffies	2009-05-09 10:08:19 +02:00
sched_cpupri.c	sched: Fix race in cpupri introduced by cpumask_var changes	2009-08-02 14:23:29 +02:00
sched_cpupri.h	cpumask: remove cpumask_t from core	2009-03-30 22:05:17 +10:30
sched_debug.c	sched: Hide runqueues from direct refer at source code level	2009-06-17 18:29:42 +02:00
sched_fair.c	sched: Fix latencytop and sleep profiling vs group scheduling	2009-08-02 14:10:12 +02:00
sched_features.h	Merge branch 'locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-03-30 17:17:35 -07:00
sched_idletask.c	sched, timers: move calc_load() to scheduler	2009-05-15 15:32:45 +02:00
sched_rt.c	sched_rt: Fix overload bug on rt group scheduling	2009-07-10 10:43:29 +02:00
sched_stats.h	sched: remove unused fields from struct rq	2009-03-24 23:16:51 +01:00
seccomp.c	…
semaphore.c	…
signal.c	do_sigaltstack: small cleanups	2009-08-01 11:18:56 -07:00
slow-work.c	slow-work: use round_jiffies() for thread pool's cull and OOM timers	2009-06-16 19:47:49 -07:00
smp.c	generic-ipi: fix hotplug_cfd()	2009-08-07 10:39:55 -07:00
softirq.c	rcu: Renamings to increase RCU clarity	2009-08-23 10:32:37 +02:00
softlockup.c	…
spinlock.c	Allow rwlocks to re-enable interrupts	2009-04-02 19:05:11 -07:00
srcu.c	…
stacktrace.c	…
stop_machine.c	cpumask: remove cpumask_t from core	2009-03-30 22:05:17 +10:30
sys.c	groups: move code to kernel/groups.c	2009-06-16 19:47:48 -07:00
sys_ni.c	…
sysctl.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-28 11:05:28 -07:00
sysctl_check.c	…
taskstats.c	…
test_kprobes.c	…
time.c	…
timeconst.pl	…
timer.c	rcu: Simplify rcu_pending()/rcu_check_callbacks() API	2009-08-23 10:32:39 +02:00
tracepoint.c	…
tsacct.c	…
uid16.c	…
up.c	…
user.c	sched: delayed cleanup of user_struct	2009-06-15 21:30:23 -07:00
user_namespace.c	…
utsname.c	utsns: extract creeate_uts_ns()	2009-06-18 13:03:55 -07:00
utsname_sysctl.c	proc_sysctl: use CONFIG_PROC_SYSCTL around ipc and utsname proc_handlers	2009-04-02 19:05:01 -07:00
wait.c	locking, sched: Give waitqueue spinlocks their own lockdep classes	2009-08-10 14:43:09 +02:00
workqueue.c	ftrace, workqueuetrace: make workqueue tracepoints use TRACE_EVENT macro	2009-06-02 01:10:40 +02:00