Steven Rostedt
c37495fd0f
sched: Balance RT tasks when forked as well
...
When a new task is woken, the code to balance the RT task is currently
skipped in the select_task_rq() call. But it will be pushed if the rq
is currently overloaded with RT tasks anyway. The issue is that we
already queued the task, and if it does get pushed, it will have to
be dequeued and requeued on the new run queue. The advantage with
pushing it first is that we avoid this requeuing as we are pushing it
off before the task is ever queued.
See commit 318e0893ce ("sched: pre-route RT tasks on wakeup")
for more details.
The return of select_task_rq() when it is not a wake up has also been
changed to return task_cpu() instead of smp_processor_id(). This is more
of a sanity because the current only other user of select_task_rq()
besides wake ups, is an exec, where task_cpu() should also be the same
as smp_processor_id(). But if it is used for other purposes, lets keep
the task on the same CPU. Why would we mant to migrate it to the current
CPU?
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Hillf Danton <dhillf@gmail.com>
Link: http://lkml.kernel.org/r/20110617015919.832743148@goodmis.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-08-14 12:00:52 +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: Remove perf_event_attr::type check
2011-07-21 20:41:55 +02:00
gcov
gcov: disable CONSTRUCTORS for UML
2011-07-26 16:49:45 -07:00
irq
Merge branch 'imx/dt' into next/dt
2011-07-28 15:25:46 +00:00
power
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2011-07-25 13:56:39 -07:00
time
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-07-22 16:52:18 -07:00
trace
Merge branch 'linus' into perf/urgent
2011-08-05 10:33:55 +02:00
.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
irq_work: Use per cpu atomics instead of regular atomics
2010-12-18 15:54:48 +01:00
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: Clear whole lockdep_map on initialization
2011-08-04 10:17:56 +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
hrtimers: Avoid touching inactive timer bases
2011-05-23 13:59:54 +02:00
posix-timers.c
posix-timers: RCU conversion
2011-05-24 12:10:51 +02:00
printk.c
cap_syslog: don't use WARN_ONCE for CAP_SYS_ADMIN deprecation warning
2011-08-09 18:22:22 -07:00
profile.c
kernel/profile.c: remove some duplicate code from profile_hits()
2011-05-26 17:12:37 -07:00
ptrace.c
connector: add an event for monitoring process tracers
2011-07-18 21:38:33 +02:00
range.c
kernel/range.c: fix clean_sort_range() for the case of full array
2010-11-12 07:55:31 -08:00
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
Clean up relay_alloc_page_array() slightly by using vzalloc rather than vmalloc and memset
2010-11-05 08:21:34 -07:00
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
resources: Add lookup_resource()
2011-07-30 21:21:39 +02:00
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 broken SCHED_RESET_ON_FORK handling
2011-08-14 12:00:43 +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: Add some clock info to sched_debug
2010-11-23 10:29:08 +01:00
sched_cpupri.c
sched_cpupri.h
sched_debug.c
sched: Get rid of lock_depth
2011-04-24 13:18:38 +02:00
sched_fair.c
sched: Remove noop in lowest_flag_domain()
2011-08-14 12:00:46 +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
sched: Balance RT tasks when forked as well
2011-08-14 12:00:52 +02:00
sched_stats.h
sched: More sched_domain iterations fixes
2011-05-28 17:02:54 +02:00
sched_stoptask.c
sched: Drop the rq argument to sched_class::select_task_rq()
2011-04-14 08:52:36 +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
move RLIMIT_NPROC check from set_user() to do_execve_common()
2011-08-11 11:24:42 -07:00
sys_ni.c
ipc: Add missing sys_ni entries for ipc/compat.c functions
2011-05-20 13:53:02 -07:00
sysctl.c
sysctl,rcu: Convert call_rcu(free_head) to kfree
2011-07-20 14:10:18 -07:00
sysctl_binary.c
open-style analog of vfs_path_lookup()
2011-03-14 09:15:28 -04:00
sysctl_check.c
sysctl_check: drop dead code
2011-03-23 19:46:51 -07:00
taskstats.c
taskstats: add_del_listener() should ignore !valid listeners
2011-08-03 14:25:20 -10:00
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
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
Merge branch 'for-3.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2011-07-22 15:07:15 -07:00
workqueue_sched.h