iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/kernel
History
Frederic Weisbecker ad65782fba context_tracking: Optimize main APIs off case with static key 
Optimize user and exception entry/exit APIs with static
keys. This minimize the overhead for those who enable
CONFIG_NO_HZ_FULL without always using it. Having no range
passed to nohz_full= should result in the probes to be nopped
(at least we hope so...).

If this proves not be enough in the long term, we'll need
to bring an exception slow path by re-routing the exception
handlers.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Kevin Hilman <khilman@linaro.org>
2013-08-14 17:14:45 +02:00
..
cpu
idle: Enable interrupts in the weak arch_cpu_idle() implementation
2013-06-14 23:01:05 +02:00
debug
kgdb/sysrq: fix inconstistent help message of sysrq key
2013-04-30 17:04:10 -07:00
events
Driver core patches for 3.11-rc2
2013-07-18 12:48:40 -07:00
gcov
kernel/gcov: remove depends on CONFIG_EXPERIMENTAL
2013-01-11 11:39:33 -08:00
irq
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-07-13 15:37:30 -07:00
power
PM / Sleep: avoid 'autosleep' in shutdown progress
2013-07-15 01:31:37 +02:00
sched
vtime: Update a few comments
2013-08-13 00:40:44 +02:00
time
context_tracking: Remove full dynticks' hacky dependency on wide context tracking
2013-08-13 00:54:34 +02:00
trace
tracing: Kill the unbalanced tr->ref++ in tracing_buffers_open()
2013-07-19 14:32:22 -04:00
.gitignore
kernel/hz.bc: ignore.
2013-04-22 07:09:06 -07:00
acct.c
fs: Fix hang with BSD accounting on frozen filesystem
2013-05-04 14:57:58 -04:00
async.c
async: rename and redefine async_func_ptr
2013-03-12 13:59:14 -07:00
audit_tree.c
kernel/audit_tree.c:audit_add_tree_rule(): protect `rule' from kill_rules()
2013-06-12 16:29:46 -07:00
audit_watch.c
audit: catch possible NULL audit buffers
2013-01-11 14:54:55 -08:00
audit.c
audit: wait_for_auditd() should use TASK_UNINTERRUPTIBLE
2013-06-12 16:29:45 -07:00
audit.h
audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record
2013-07-09 10:33:19 -07:00
auditfilter.c
audit: Fix decimal constant description
2013-07-09 10:33:19 -07:00
auditsc.c
audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record
2013-07-09 10:33:19 -07:00
backtracetest.c
…
bounds.c
…
capability.c
Add file_ns_capable() helper function for open-time capability checking
2013-04-14 10:06:31 -07:00
cgroup_freezer.c
cgroup: rename ->create/post_create/pre_destroy/destroy() to ->css_alloc/online/offline/free()
2012-11-19 08:13:38 -08:00
cgroup.c
cgroup: we can use simple_lookup() now
2013-07-14 17:50:23 +04:00
compat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-05-01 07:21:43 -07:00
configs.c
proc: Supply PDE attribute setting accessor functions
2013-05-01 17:29:18 -04:00
context_tracking.c
context_tracking: Optimize main APIs off case with static key
2013-08-14 17:14:45 +02:00
cpu_pm.c
…
cpu.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
cpuset.c
Merge branch 'for-3.11-cpuset' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2013-07-02 20:04:25 -07:00
crash_dump.c
…
cred.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-12-18 10:55:28 -08:00
delayacct.c
cputime: Use accessors to read task cputime stats
2013-01-27 19:23:31 +01:00
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
ptrace: revert "Prepare to fix racy accesses on task breakpoints"
2013-07-09 10:33:26 -07:00
extable.c
extable: Flip the sorting message
2013-04-15 13:25:16 +02:00
fork.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
freezer.c
freezer: skip waking up tasks with PF_FREEZER_SKIP set
2013-05-12 14:16:22 +02:00
futex_compat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-02-23 18:50:11 -08:00
futex.c
futex: Use freezable blocking call
2013-06-25 23:11:19 +02:00
groups.c
…
hrtimer.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
hung_task.c
…
irq_work.c
Merge branch 'nohz/printk-v8' into irq/core
2013-02-05 00:48:46 +01:00
itimer.c
…
jump_label.c
jump_label: Export jump_label_rate_limit()
2012-08-06 19:00:35 +03:00
kallsyms.c
kernel: kallsyms: memory override issue, need check destination buffer length
2013-04-15 15:17:26 +09:30
kcmp.c
kcmp: include linux/ptrace.h
2012-12-20 17:40:19 -08:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking: Fix copy/paste errors of "ARCH_INLINE_*_UNLOCK_BH"
2013-05-28 08:50:00 +02:00
Kconfig.preempt
…
kexec.c
kexec: Use min() and min_t() to simplify logic
2013-04-30 17:04:07 -07:00
kmod.c
usermodehelper: kill the sub_info->path[0] check
2013-07-03 16:08:02 -07:00
kprobes.c
kprobes: handle empty/invalid input to debugfs "enabled" file
2013-07-03 16:07:46 -07:00
ksysfs.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-11 18:10:49 -08:00
kthread.c
kthread: implement probe_kthread_data()
2013-04-30 17:04:02 -07:00
latencytop.c
…
lglock.c
…
lockdep_internals.h
…
lockdep_proc.c
lockdep: Use KSYM_NAME_LEN'ed buffer for __get_key_name()
2012-10-24 12:39:09 +02:00
lockdep_states.h
…
lockdep.c
lockdep: remove task argument from debug_check_no_locks_held
2013-05-12 14:16:21 +02:00
Makefile
reboot: move shutdown/reboot related functions to kernel/reboot.c
2013-07-09 10:33:29 -07:00
modsign_certificate.S
CONFIG_SYMBOL_PREFIX: cleanup.
2013-03-15 15:09:43 +10:30
modsign_pubkey.c
keys: use keyring_alloc() to create module signing keyring
2012-12-20 17:40:21 -08:00
module_signing.c
MODSIGN: Don't use enum-type bitfields in module signature info block
2012-12-05 11:27:24 +10:30
module-internal.h
MODSIGN: Move the magic string to the end of a module and eliminate the search
2012-10-19 17:30:40 -07:00
module.c
Nothing interesting. Except the most embarrassing bugfix ever. But let's
2013-07-10 14:51:41 -07:00
mutex-debug.c
…
mutex-debug.h
…
mutex.c
mutex: Move ww_mutex definitions to ww_mutex.h
2013-07-12 12:07:46 +02:00
mutex.h
…
notifier.c
…
nsproxy.c
proc: Split the namespace stuff out into linux/proc_ns.h
2013-05-01 17:29:39 -04:00
padata.c
padata: use __this_cpu_read per-cpu helper
2012-12-06 17:16:23 +08:00
panic.c
The majority of the changes here are cleanups for the large changes that
2013-07-11 09:02:09 -07:00
params.c
There is no /sys/parameters
2013-07-02 15:38:19 +09:30
pid_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
pid.c
kernel/pid.c: move statement
2013-07-03 16:08:05 -07:00
posix-cpu-timers.c
posix_timers: fix racy timer delta caching on task exit
2013-07-03 16:54:42 +02:00
posix-timers.c
posix-timers: Remove unused variable
2013-04-18 12:51:19 +02:00
printk.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
profile.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
ptrace.c
ptrace: PTRACE_DETACH should do flush_ptrace_hw_breakpoint(child)
2013-07-09 10:33:26 -07:00
range.c
range: Do not add new blank slot with add_range_with_merge
2013-06-18 11:32:10 -05:00
rcu.h
rcu: Provide RCU CPU stall warnings for tiny RCU
2013-01-28 22:06:21 -08:00
rcupdate.c
Merge branches 'cbnum.2013.06.10a', 'doc.2013.06.10a', 'fixes.2013.06.10a', 'srcu.2013.06.10a' and 'tiny.2013.06.10a' into HEAD
2013-06-10 13:46:44 -07:00
rcutiny_plugin.h
rcu: Shrink TINY_RCU by reworking CPU-stall ifdefs
2013-06-10 13:45:53 -07:00
rcutiny.c
rcu: Shrink TINY_RCU by reworking CPU-stall ifdefs
2013-06-10 13:45:53 -07:00
rcutorture.c
rcu: delete __cpuinit usage from all rcu files
2013-07-14 19:36:58 -04:00
rcutree_plugin.h
rcu: delete __cpuinit usage from all rcu files
2013-07-14 19:36:58 -04:00
rcutree_trace.c
rcutrace: single_open() leaks
2013-05-05 00:16:35 -04:00
rcutree.c
rcu: delete __cpuinit usage from all rcu files
2013-07-14 19:36:58 -04:00
rcutree.h
rcu: delete __cpuinit usage from all rcu files
2013-07-14 19:36:58 -04:00
reboot.c
reboot: move arch/x86 reboot= handling to generic kernel
2013-07-09 10:33:29 -07:00
relay.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
res_counter.c
res_counter: return amount of charges after res_counter_uncharge()
2012-12-18 15:02:12 -08:00
resource.c
kernel/resource.c: remove the unneeded assignment in function __find_resource
2013-07-03 16:08:06 -07:00
rtmutex_common.h
…
rtmutex-debug.c
sched/rt: Move rt specific bits into new header file
2013-02-07 20:51:08 +01:00
rtmutex-debug.h
…
rtmutex-tester.c
locking/rtmutex/tester: Set correct permissions on sysfs files
2013-04-10 14:48:37 +02:00
rtmutex.c
rtmutex: Document rt_mutex_adjust_prio_chain()
2013-05-28 09:23:52 +02:00
rtmutex.h
…
rwsem.c
Revert "rw_semaphore: remove up/down_read_non_owner"
2013-03-23 15:53:52 -07:00
seccomp.c
seccomp: allow BPF_XOR based ALU instructions.
2013-03-26 11:07:19 +11:00
semaphore.c
semaphore: use `bool' type for semaphore_waiter's up
2013-04-30 17:04:08 -07:00
signal.c
sigtimedwait: use freezable blocking call
2013-05-12 14:16:23 +02:00
smp.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
smpboot.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
smpboot.h
smpboot: Provide infrastructure for percpu hotplug threads
2012-08-13 17:01:07 +02:00
softirq.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
spinlock.c
…
srcu.c
srcu: use ACCESS_ONCE() to access sp->completed in srcu_read_lock()
2013-02-07 15:19:36 -08:00
stacktrace.c
…
stop_machine.c
stop_machine: Mark per cpu stopper enabled early
2013-02-26 22:25:17 +01:00
sys_ni.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
sys.c
reboot: move shutdown/reboot related functions to kernel/reboot.c
2013-07-09 10:33:29 -07:00
sysctl_binary.c
kernel: remove unnecessary head file
2013-06-26 18:01:46 +09:00
sysctl.c
Merge branch 'linus' into timers/urgent
2013-07-12 12:34:42 +02:00
task_work.c
task_work: task_work_add() should not succeed after exit_task_work()
2012-09-13 16:47:34 +02:00
taskstats.c
taskstats: cgroupstats_user_cmd() may leak on error
2012-10-06 03:05:31 +09:00
test_kprobes.c
kernel/: rename random32() to prandom_u32()
2013-04-29 18:28:42 -07:00
time.c
sched: Rename sched.c as sched/core.c in comments and Documentation
2013-06-19 12:58:42 +02:00
timeconst.bc
kernel: Replace timeconst.pl with a bc script
2013-02-16 23:17:25 +01:00
timer.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
tracepoint.c
Tracing updates for Linux 3.10
2013-04-29 13:55:38 -07:00
tsacct.c
cputime: Use accessors to read task cputime stats
2013-01-27 19:23:31 +01:00
uid16.c
make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect
2013-03-03 22:58:33 -05:00
up.c
…
user_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
user-return-notifier.c
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
user.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
utsname_sysctl.c
kernel/utsname_sysctl.c: put get/get_uts() into CONFIG_PROC_SYSCTL code block
2013-02-27 19:10:22 -08:00
utsname.c
proc: Split the namespace stuff out into linux/proc_ns.h
2013-05-01 17:29:39 -04:00
wait.c
Add wait_on_atomic_t() and wake_up_atomic_t()
2013-05-15 13:50:38 +01:00
watchdog.c
watchdog: Boot-disable by default on full dynticks
2013-06-20 15:46:32 +02:00
workqueue_internal.h
sched: Rename sched.c as sched/core.c in comments and Documentation
2013-06-19 12:58:42 +02:00
workqueue.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00