Frederic Weisbecker
53c5fa16b4
nohz: Switch to nohz full remote kick on timer enqueue
...
When a new timer is enqueued on a full dynticks target, that CPU must
re-evaluate the next tick to handle the timer correctly.
This is currently performed through the scheduler IPI. Meanwhile this
happens at the cost of off-topic workarounds in that fast path to make
it call irq_exit().
As we plan to remove this hack off the scheduler IPI, lets use
the nohz full kick instead. Pretty much any IPI fits for that job
as long at it calls irq_exit(). The nohz full kick just happens to be
handy and readily available here.
If it happens to be too much an overkill in the future, we can still
turn that timer kick into an empty IPI.
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2014-06-16 16:26:55 +02:00
..
debug
kernel/printk: use symbolic defines for console loglevels
2014-06-04 16:54:17 -07:00
events
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-06-12 19:18:49 -07:00
gcov
gcov: add support for GCC 4.9
2014-06-10 15:34:46 -07:00
irq
genirq: Improve documentation to match current implementation
2014-05-27 10:16:44 +02:00
locking
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-06-12 18:48:15 -07:00
power
Merge branch 'pm-sleep'
2014-06-12 13:43:08 +02:00
printk
kernel/printk: use symbolic defines for console loglevels
2014-06-04 16:54:17 -07:00
rcu
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-03 12:57:53 -07:00
sched
nohz: Switch to nohz full remote kick on timer enqueue
2014-06-16 16:26:55 +02:00
time
nohz: Support nohz full remote kick
2014-06-16 16:26:54 +02:00
trace
One bug fix that goes back to 3.10. Accessing a non existent buffer
2014-06-12 21:07:25 -07:00
.gitignore
acct.c
ipc, kernel: clear whitespace
2014-06-06 16:08:14 -07:00
async.c
audit.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
audit.h
audit: Use struct net not pid_t to remember the network namespce to reply in
2014-03-20 10:10:53 -04:00
audit_tree.c
audit_watch.c
auditfilter.c
Merge git://git.infradead.org/users/eparis/audit
2014-04-12 12:38:53 -07:00
auditsc.c
auditsc: audit_krule mask accesses need bounds checking
2014-06-10 08:44:40 -07:00
backtracetest.c
kernel/backtracetest.c: replace no level printk by pr_info()
2014-06-04 16:54:14 -07:00
bounds.c
capability.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-10 13:57:22 -07:00
cgroup.c
Merge branch 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-06-09 15:03:33 -07:00
cgroup_freezer.c
cgroup: remove css_parent()
2014-05-16 13:22:48 -04:00
compat.c
kernel/compat.c: use sizeof() instead of sizeof
2014-06-04 16:54:19 -07:00
configs.c
context_tracking.c
asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*
2014-05-05 16:07:46 -07:00
cpu.c
More ACPI and power management updates for 3.16-rc1
2014-06-12 13:14:19 -07:00
cpu_pm.c
cpuset.c
Merge branch 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-06-09 15:03:33 -07:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
kernel/exec_domain.c: code clean-up
2014-06-04 16:54:15 -07:00
exit.c
signals: mv {dis,}allow_signal() from sched.h/exit.c to signal.[ch]
2014-06-06 16:08:11 -07:00
extable.c
fork.c
ptrace: fix fork event messages across pid namespaces
2014-06-06 16:08:11 -07:00
freezer.c
futex.c
Merge branch 'next' (accumulated 3.16 merge window patches) into master
2014-06-08 11:31:16 -07:00
futex_compat.c
groups.c
kernel/groups.c: remove return value of set_groups
2014-04-03 16:21:05 -07:00
hrtimer.c
Merge branch 'perf/urgent' into perf/core, to resolve conflict and to prepare for new patches
2014-06-06 07:55:06 +02:00
hung_task.c
kernel/hung_task.c: convert simple_strtoul to kstrtouint
2014-06-04 16:54:15 -07:00
irq_work.c
irq_work: Implement remote queueing
2014-06-16 16:26:54 +02:00
itimer.c
jump_label.c
kallsyms.c
kernel: use macros from compiler.h instead of __attribute__((...))
2014-04-07 16:36:11 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks
2014-06-06 07:58:28 +02:00
Kconfig.preempt
kexec.c
kernel/kexec.c: convert printk to pr_foo()
2014-06-06 16:08:12 -07:00
kmod.c
signals: change wait_for_helper() to use kernel_sigaction()
2014-06-06 16:08:12 -07:00
kprobes.c
kprobes: Show blacklist entries via debugfs
2014-04-24 10:26:41 +02:00
ksysfs.c
kobject: Make support for uevent_helper optional.
2014-04-25 12:00:49 -07:00
kthread.c
kthread: fix return value of kthread_create() upon SIGKILL.
2014-06-04 16:53:51 -07:00
latencytop.c
kernel/latencytop.c: convert seq_printf to seq_puts
2014-06-04 16:54:15 -07:00
Makefile
Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-03-31 14:13:25 -07:00
module-internal.h
module.c
Most of this is cleaning up various driver sysfs permissions so we can
2014-06-11 16:09:14 -07:00
module_signing.c
notifier.c
kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier
2014-04-24 10:26:39 +02:00
nsproxy.c
padata.c
panic.c
kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump after panic_notifers
2014-06-06 16:08:12 -07:00
params.c
param: hand arguments after -- straight to init
2014-04-28 11:48:34 +09:30
pid.c
pid_namespace.c
pid_namespace: pidns_get() should check task_active_pid_ns() != NULL
2014-04-02 16:20:21 -07:00
posix-cpu-timers.c
posix-timers.c
profile.c
kernel/profile.c: use static const char instead of static char
2014-06-06 16:08:13 -07:00
ptrace.c
range.c
reboot.c
kernel/reboot.c: convert simple_strtoul to kstrtoint
2014-06-04 16:54:15 -07:00
relay.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-04-12 14:49:50 -07:00
res_counter.c
kernel/res_counter.c: replace simple_strtoull by kstrtoull
2014-06-04 16:54:15 -07:00
resource.c
resources: Clarify sanity check message
2014-05-23 10:47:21 -06:00
seccomp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
signal.c
signals: introduce kernel_sigaction()
2014-06-06 16:08:12 -07:00
smp.c
irq_work: Implement remote queueing
2014-06-16 16:26:54 +02:00
smpboot.c
smpboot.h
softirq.c
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2014-05-22 11:36:10 +02:00
stacktrace.c
stop_machine.c
kernel/stop_machine.c: kernel-doc warning fix
2014-06-04 16:54:15 -07:00
sys.c
sched: Consolidate open coded implementations of nice level frobbing into nice_to_rlimit() and rlimit_to_nice()
2014-05-22 11:16:36 +02:00
sys_ni.c
sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL
2014-06-04 16:54:14 -07:00
sysctl.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
sysctl_binary.c
system_certificates.S
system_keyring.c
task_work.c
taskstats.c
test_kprobes.c
time.c
timeconst.bc
timer.c
timer: Prevent overflow in apply_slack
2014-04-30 13:46:17 +02:00
torture.c
torture: Remove __init from torture_init_begin/end
2014-05-14 09:46:30 -07:00
tracepoint.c
kernel/tracepoint.c: kernel-doc fixes
2014-06-04 16:54:15 -07:00
tsacct.c
uid16.c
up.c
user-return-notifier.c
user.c
kernel/user.c: drop unused field 'files' from user_struct
2014-06-04 16:54:16 -07:00
user_namespace.c
kernel/user_namespace.c: kernel-doc/checkpatch fixes
2014-06-06 16:08:13 -07:00
utsname.c
utsname_sysctl.c
sysctl: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
watchdog.c
kernel/watchdog.c:touch_softlockup_watchdog(): use raw_cpu_write()
2014-04-18 16:40:08 -07:00
workqueue.c
Merge branch 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2014-06-09 14:56:49 -07:00
workqueue_internal.h
workqueue: rename manager_mutex to attach_mutex
2014-05-20 10:59:32 -04:00