Steven Rostedt 1bb539ca36 ftrace: Use the rcu _notrace variants for rcu_dereference_raw() and friends ...

As rcu_dereference_raw() under RCU debug config options can add quite a
bit of checks, and that tracing uses rcu_dereference_raw(), these checks
happen with the function tracer. The function tracer also happens to trace
these debug checks too. This added overhead can livelock the system.

Have the function tracer use the new RCU _notrace equivalents that do
not do the debug checks for RCU.

Link: http://lkml.kernel.org/r/20130528184209.467603904@goodmis.org

Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2013-05-28 22:48:00 -04:00

..

cpu

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-04-30 08:15:40 -07:00

debug

kgdb/sysrq: fix inconstistent help message of sysrq key

2013-04-30 17:04:10 -07:00

events

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

gcov

kernel/gcov: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:39:33 -08:00

irq

irqdomain: Allow quiet failure mode

2013-05-06 11:37:43 +10:00

power

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2013-05-02 19:40:34 -07:00

sched

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

time

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

trace

ftrace: Use the rcu _notrace variants for rcu_dereference_raw() and friends

2013-05-28 22:48:00 -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: tree will leak memory when failure occurs in audit_trim_trees()

2013-04-29 15:54:26 -07:00

audit_watch.c

audit: catch possible NULL audit buffers

2013-01-11 14:54:55 -08:00

audit.c

Merge git://git.infradead.org/users/eparis/audit

2013-05-11 14:29:11 -07:00

audit.h

Merge git://git.infradead.org/users/eparis/audit

2013-05-11 14:29:11 -07:00

auditfilter.c

Merge git://git.infradead.org/users/eparis/audit

2013-05-11 14:29:11 -07:00

auditsc.c

audit: Make testing for a valid loginuid explicit.

2013-05-07 22:27:15 -04:00

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

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

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

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-02-19 18:19:48 -08:00

cpu_pm.c

kernel/cpu_pm.c: fix various typos

2012-05-31 17:49:27 -07:00

cpu.c

Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-02-19 19:04:55 -08:00

cpuset.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

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

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

extable.c

extable: Flip the sorting message

2013-04-15 13:25:16 +02:00

fork.c

Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block

2013-05-08 11:51:05 -07:00

freezer.c

freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()

2012-10-26 14:27:49 -07:00

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: fix kernel-doc notation and spello

2013-03-12 20:42:10 -07:00

groups.c

…

hrtimer.c

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

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: Adjust spin lock inlining Kconfig options

2012-09-13 17:56:13 +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

kmod: remove call_usermodehelper_fns()

2013-04-30 17:04:06 -07:00

kprobes.c

kprobes: Fix a double lock bug of kprobe_mutex

2013-04-18 08:58:38 -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

brlocks/lglocks: turn into functions

2012-05-29 23:28:41 -04:00

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

Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block

2013-05-08 11:51:05 -07:00

Makefile

We get rid of the general module prefix confusion with a binary config option,

2013-05-05 10:58:06 -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

module: don't unlink the module until we've removed all exposure.

2013-04-17 13:23:02 +09:30

mutex-debug.c

…

mutex-debug.h

…

mutex.c

mutex: Back out architecture specific check for negative mutex count

2013-04-19 09:33:36 +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

dump_stack: implement arch-specific hardware description in task dumps

2013-04-30 17:04:02 -07:00

params.c

params: Fix potential memory leak in add_sysfs_param()

2013-03-18 11:40:21 +00:00

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

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

posix-cpu-timers.c

posix_timers: Fix pre-condition to stop the tick on full dynticks

2013-04-22 19:59:25 +02:00

posix-timers.c

posix-timers: Remove unused variable

2013-04-18 12:51:19 +02:00

printk.c

aio: don't include aio.h in sched.h

2013-05-07 20:16:25 -07:00

profile.c

proc: Supply PDE attribute setting accessor functions

2013-05-01 17:29:18 -04:00

ptrace.c

aio: don't include aio.h in sched.h

2013-05-07 20:16:25 -07:00

range.c

kernel/range.c: subtract_range: fix the broken phrase issued by printk

2013-04-30 17:04:01 -07:00

rcu.h

rcu: Provide RCU CPU stall warnings for tiny RCU

2013-01-28 22:06:21 -08:00

rcupdate.c

Merge branches 'doctorture.2013.01.29a', 'fixes.2013.01.26a', 'tagcb.2013.01.24a' and 'tiny.2013.01.29b' into HEAD

2013-01-28 22:25:21 -08:00

rcutiny_plugin.h

rcu: Provide RCU CPU stall warnings for tiny RCU

2013-01-28 22:06:21 -08:00

rcutiny.c

Merge branches 'doctorture.2013.01.29a', 'fixes.2013.01.26a', 'tagcb.2013.01.24a' and 'tiny.2013.01.29b' into HEAD

2013-01-28 22:25:21 -08:00

rcutorture.c

rcu: Allow rcutorture to be built at low optimization levels

2013-02-04 12:18:20 -08:00

rcutree_plugin.h

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

rcutree_trace.c

rcutrace: single_open() leaks

2013-05-05 00:16:35 -04:00

rcutree.c

Merge commit '8700c95adb03' into timers/nohz

2013-05-02 17:54:19 +02:00

rcutree.h

Merge commit '8700c95adb03' into timers/nohz

2013-05-02 17:54:19 +02:00

relay.c

Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

2013-05-08 10:13:35 -07:00

res_counter.c

res_counter: return amount of charges after res_counter_uncharge()

2012-12-18 15:02:12 -08:00

resource.c

mem hotunplug: fix kfree() of bootmem memory

2013-04-29 15:54:40 -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

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

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

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2013-05-01 14:08:52 -07:00

smp.c

kernel/smp.c: cleanups

2013-04-30 17:04:03 -07:00

smpboot.c

kthread: Prevent unpark race which puts threads on the wrong cpu

2013-04-12 14:18:43 +02:00

smpboot.h

smpboot: Provide infrastructure for percpu hotplug threads

2012-08-13 17:01:07 +02:00

softirq.c

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

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

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-05-01 07:21:43 -07:00

sysctl_binary.c

switch compat_sys_sysctl to COMPAT_SYSCALL_DEFINE

2013-05-09 14:53:20 -04:00

sysctl.c

mm: replace hardcoded 3% with admin_reserve_pages knob

2013-04-29 15:54:36 -07:00

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

timekeeping: Use inject_offset in warp_clock

2013-03-15 16:50:20 -07:00

timeconst.bc

kernel: Replace timeconst.pl with a bc script

2013-02-16 23:17:25 +01:00

timer.c

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

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

propagate name change to comments in kernel source

2012-12-06 10:39:54 +01:00

watchdog.c

watchdog: Add comments to explain the watchdog_disabled variable

2013-03-14 08:24:05 +01:00

workqueue_internal.h

workqueue: include workqueue info when printing debug dump of a worker task

2013-04-30 17:04:02 -07:00

workqueue.c

workqueue: include workqueue info when printing debug dump of a worker task

2013-04-30 17:04:02 -07:00