Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Thomas Gleixner 908a328372 sched: Fix idle_cpu() ... On -rt we observed hackbench waking all 400 tasks to a single cpu. This is because of select_idle_sibling()'s interaction with the new ipi based wakeup scheme. The existing idle_cpu() test only checks to see if the current task on that cpu is the idle task, it does not take already queued tasks into account, nor does it take queued to be woken tasks into account. If the remote wakeup IPIs come hard enough, there won't be time to schedule away from the idle task, and would thus keep thinking the cpu was in fact idle, regardless of the fact that there were already several hundred tasks runnable. We couldn't reproduce on mainline, but there's no reason it couldn't happen. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-3o30p18b2paswpc9ohy2gltp@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>		2011-10-04 12:44:07 +02:00
..
debug	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb	2011-08-01 13:39:40 -10:00
events	perf_event: Fix broken calc_timer_values()	2011-08-31 15:56:29 +02:00
gcov	gcov: disable CONSTRUCTORS for UML	2011-07-26 16:49:45 -07:00
irq	irq: Fix check for already initialized irq_domain in irq_domain_add	2011-09-20 12:16:22 +02:00
power	PM / Domains: Fix build for CONFIG_PM_RUNTIME unset	2011-08-14 13:34:31 +02:00
time	alarmtimers: Avoid possible denial of service with high freq periodic timers	2011-08-10 10:26:09 -07:00
trace	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2011-08-19 10:47:07 -07:00
.gitignore
acct.c
async.c	async: Fixed an include coding style issue	2011-06-14 22:48:46 -04:00
audit.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
audit.h
audit_tree.c	audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()	2011-07-20 14:10:11 -07:00
audit_watch.c	kill path_lookup()	2011-03-14 09:15:23 -04:00
auditfilter.c	netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms	2011-03-03 10:55:40 -08:00
auditsc.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
backtracetest.c
bounds.c	memcg: remove direct page_cgroup-to-page pointer	2011-03-23 19:46:28 -07:00
capability.c	Merge branch 'master' into next	2011-05-19 18:51:57 +10:00
cgroup.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6	2011-07-27 19:26:38 -07:00
cgroup_freezer.c	cgroups: add per-thread subsystem callbacks	2011-05-26 17:12:34 -07:00
compat.c	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2011-07-30 00:08:53 -07:00
configs.c	kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n	2011-07-25 20:57:15 -07:00
cpu.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
cpuset.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
crash_dump.c	crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn	2011-03-23 19:47:19 -07:00
cred.c	move RLIMIT_NPROC check from set_user() to do_execve_common()	2011-08-11 11:24:42 -07:00
delayacct.c	KVM: Steal time implementation	2011-07-14 12:59:14 +03:00
dma.c
elfcore.c
exec_domain.c
exit.c	ipc: introduce shm_rmid_forced sysctl	2011-07-26 16:49:44 -07:00
extable.c	extable, core_kernel_data(): Make sure all archs define _sdata	2011-05-20 08:56:56 +02:00
fork.c	move RLIMIT_NPROC check from set_user() to do_execve_common()	2011-08-11 11:24:42 -07:00
freezer.c	Freezer: Use SMP barriers	2011-05-17 23:19:17 +02:00
futex.c	Merge branch 'linus' into core/urgent	2011-08-04 09:09:27 +02:00
futex_compat.c	userns: user namespaces: convert several capable() calls	2011-03-23 19:47:08 -07:00
groups.c	userns: user namespaces: convert several capable() calls	2011-03-23 19:47:08 -07:00
hrtimer.c	hrtimers: Fix typo causing erratic timers	2011-05-25 15:31:58 -07:00
hung_task.c	watchdog, hung_task_timeout: Add Kconfig configurable default	2011-04-28 09:13:17 +02:00
irq_work.c	llist: Add llist_next()	2011-10-04 12:43:53 +02:00
itimer.c
jump_label.c	jump_label: Fix jump_label update for modules	2011-06-29 09:59:17 -04:00
kallsyms.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-25 17:52:22 -07:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks	arch:Kconfig.locks Remove unused config option.	2011-04-10 17:01:05 +02:00
Kconfig.preempt	sched: Isolate preempt counting in its own config option	2011-06-10 15:15:40 +02:00
kexec.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
kfifo.c
kmod.c	Boot up with usermodehelper disabled	2011-08-03 22:03:29 -10:00
kprobes.c	kprobes: Return -ENOENT if probe point doesn't exist	2011-07-15 15:11:47 -04:00
ksysfs.c	kernel/ksysfs.c: expose file_caps_enabled in sysfs	2011-04-19 16:45:51 -07:00
kthread.c	cpuset: Fix cpuset_cpus_allowed_fallback(), don't update tsk->rt.nr_cpus_allowed	2011-05-28 17:02:57 +02:00
latencytop.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
lockdep.c	lockdep: Fix wrong assumption in match_held_lock	2011-08-09 11:57:35 +02:00
lockdep_internals.h
lockdep_proc.c	lockdep: Remove unused 'factor' variable from lockdep_stats_show()	2011-03-23 13:54:47 +01:00
lockdep_states.h
Makefile	jump label: Reduce the cycle count by changing the link order	2011-08-05 23:57:33 +02:00
module.c	module: add /sys/module/<name>/uevent files	2011-07-24 22:06:04 +09:30
mutex-debug.c	mutex: Use p->on_cpu for the adaptive spin	2011-04-14 08:52:33 +02:00
mutex-debug.h	mutex: Use p->on_cpu for the adaptive spin	2011-04-14 08:52:33 +02:00
mutex.c	lockdep, mutex: provide mutex_lock_nest_lock	2011-05-25 08:39:17 -07:00
mutex.h	mutex: Use p->on_cpu for the adaptive spin	2011-04-14 08:52:33 +02:00
notifier.c	notifiers: sys: move reboot notifiers into reboot.h	2011-07-25 20:57:14 -07:00
nsproxy.c	make sure that nsproxy_cache is initialized early enough	2011-07-20 01:44:07 -04:00
padata.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
panic.c	panic: panic=-1 for immediate reboot	2011-07-26 16:49:45 -07:00
params.c	module: add /sys/module/<name>/uevent files	2011-07-24 22:06:04 +09:30
pid.c	rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check	2011-07-08 22:21:58 +02:00
pid_namespace.c	pidns: call pid_ns_prepare_proc() from create_pid_namespace()	2011-03-23 19:46:58 -07:00
pm_qos_params.c	plist: Remove the need to supply locks to plist heads	2011-07-08 14:02:53 +02:00
posix-cpu-timers.c	posix-cpu-timers: Cure SMP wobbles	2011-09-30 14:07:06 +02:00
posix-timers.c	posix-timers: RCU conversion	2011-05-24 12:10:51 +02:00
printk.c	kernel/printk: do not turn off bootconsole in printk_late_init() if keep_bootcon	2011-08-25 16:25:34 -07:00
profile.c	kernel/profile.c: remove some duplicate code from profile_hits()	2011-05-26 17:12:37 -07:00
ptrace.c	ptrace: PTRACE_LISTEN forgets to unlock ->siglock	2011-09-25 11:02:00 -07:00
range.c
rcupdate.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
rcutiny.c	sanitize <linux/prefetch.h> usage	2011-05-20 12:50:29 -07:00
rcutiny_plugin.h	rcu: Converge TINY_RCU expedited and normal boosting	2011-05-05 23:16:58 -07:00
rcutorture.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
rcutree.c	rcu: Prevent RCU callbacks from executing before scheduler initialized	2011-07-13 08:17:56 -07:00
rcutree.h	rcu: Move RCU_BOOST #ifdefs to header file	2011-06-16 16:12:05 -07:00
rcutree_plugin.h	softirq,rcu: Inform RCU of irq_exit() activity	2011-07-20 10:50:12 -07:00
rcutree_trace.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
relay.c
res_counter.c	memcg: res_counter_read_u64(): fix potential races on 32-bit machines	2011-03-23 19:46:22 -07:00
resource.c	Resource: fix wrong resource window calculation	2011-09-29 20:04:34 -07:00
rtmutex-debug.c	rtmutex: Simplify PI algorithm and make highest prio task get lock	2011-01-27 21:13:51 -05:00
rtmutex-debug.h
rtmutex-tester.c	rtmutex: tester: Remove the remaining BKL leftovers	2011-02-22 22:07:22 +01:00
rtmutex.c	plist: Remove the need to supply locks to plist heads	2011-07-08 14:02:53 +02:00
rtmutex.h
rtmutex_common.h	rtmutex: Simplify PI algorithm and make highest prio task get lock	2011-01-27 21:13:51 -05:00
rwsem.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
sched.c	sched: Fix idle_cpu()	2011-10-04 12:44:07 +02:00
sched_autogroup.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
sched_autogroup.h	sched: Skip autogroup when looking for all rt sched groups	2011-07-01 10:39:08 +02:00
sched_clock.c
sched_cpupri.c	sched/cpupri: Remove cpupri->pri_active	2011-08-14 12:01:11 +02:00
sched_cpupri.h	sched/cpupri: Remove cpupri->pri_active	2011-08-14 12:01:11 +02:00
sched_debug.c	sched: Get rid of lock_depth	2011-04-24 13:18:38 +02:00
sched_fair.c	sched: Remove redundant test in check_preempt_tick()	2011-09-26 13:25:49 +02:00
sched_features.h	sched: Kill WAKEUP_PREEMPT	2011-08-14 12:00:41 +02:00
sched_idletask.c	sched: Drop the rq argument to sched_class::select_task_rq()	2011-04-14 08:52:36 +02:00
sched_rt.c	Merge branch 'linus' into sched/core	2011-10-04 11:09:08 +02:00
sched_stats.h	sched: More sched_domain iterations fixes	2011-05-28 17:02:54 +02:00
sched_stoptask.c	sched: Implement hierarchical task accounting for SCHED_OTHER	2011-08-14 12:01:13 +02:00
seccomp.c
semaphore.c
signal.c	signals: sys_ssetmask/sys_rt_sigsuspend should use set_current_blocked()	2011-07-27 12:53:36 -07:00
smp.c	generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts	2011-06-17 10:17:12 +02:00
softirq.c	softirq,rcu: Inform RCU of irq_exit() activity	2011-07-20 10:50:12 -07:00
spinlock.c
srcu.c	rcu: demote SRCU_SYNCHRONIZE_DELAY from kernel-parameter status	2011-01-14 04:56:49 -08:00
stacktrace.c	stack_trace: Add weak save_stack_trace_regs()	2011-06-14 22:48:52 -04:00
stop_machine.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
sys.c	Add a personality to report 2.6.x version numbers	2011-08-25 10:17:28 -07:00
sys_ni.c	All Arch: remove linkage for sys_nfsservctl system call	2011-08-26 15:09:58 -07:00
sysctl.c	sched: Accumulate per-cfs_rq cpu usage and charge against bandwidth	2011-08-14 12:03:26 +02:00
sysctl_binary.c	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
sysctl_check.c	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
taskstats.c	Make TASKSTATS require root access	2011-09-19 17:04:37 -07:00
test_kprobes.c
time.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-15 18:53:35 -07:00
timeconst.pl
timer.c	timers: Consider slack value in mod_timer()	2011-06-03 15:02:32 +02:00
tracepoint.c	jump label: Introduce static_branch() interface	2011-04-04 12:48:08 -04:00
tsacct.c	Make taskstats round statistics down to nearest 1k bytes/events	2011-09-19 17:10:57 -07:00
uid16.c	userns: user namespaces: convert several capable() calls	2011-03-23 19:47:08 -07:00
up.c
user-return-notifier.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
user.c	userns: add a user_namespace as creator/owner of uts_namespace	2011-03-23 19:46:59 -07:00
user_namespace.c	user_ns: improve the user_ns on-the-slab packaging	2011-01-13 08:03:18 -08:00
utsname.c	ns proc: Add support for the uts namespace	2011-05-10 14:35:35 -07:00
utsname_sysctl.c
wait.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
watchdog.c	perf, x86: P4 PMU - Introduce event alias feature	2011-07-14 17:25:04 -04:00
workqueue.c	workqueue: lock cwq access in drain_workqueue	2011-09-14 18:09:38 -07:00
workqueue_sched.h