Antti P Miettinen 2c23f0e033 rcu: Add a module parameter to force use of expedited RCU primitives ...

There have been some embedded applications that would benefit from
use of expedited grace-period primitives.  In some ways, this is
similar to synchronize_net() doing either a normal or an expedited
grace period depending on lock state, but with control outside of
the kernel.

This commit therefore adds rcu_expedited boot and sysfs parameters
that cause the kernel to substitute expedited primitives for the
normal grace-period primitives.

[ paulmck: Add trace/event/rcu.h to kernel/srcu.c to avoid build error.
	   Get rid of infinite loop through contention path.]

CRs-fixed: 634363
Change-Id: I45addcb532fdaa47df3019ada3283e293ed40249
Signed-off-by: Antti P Miettinen <amiettinen@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Git-commit: 3705b88db0d7cc4a097c32d9e554054103d3f807
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[ joonwoop@codeaurora.org: resolved merge conflicts.]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>

2014-05-05 15:49:18 -07:00

..

debug

debug: add parameters to prevent entering debug mode on errors

2012-05-18 17:03:10 -07:00

events

msm: perf: clean up duplicate constraint events

2013-11-13 09:19:29 -08:00

gcov

gcov: disable CONSTRUCTORS for UML

2011-07-26 16:49:45 -07:00

irq

irqdomain: Port system to new API

2012-06-26 10:35:13 -07:00

power

freezer: replace msleep with usleep_delay for sleep time of <20mS

2014-02-26 13:10:57 +05:30

sched

sched/rt: Use root_domain of rt_rq not current processor

2014-03-18 19:01:28 -07:00

time

rtc: alarm: have dummy set_power_on_alarm function

2014-01-09 13:52:17 -08:00

trace

tracing: Have tracing_off() actually turn tracing off

2014-03-18 13:31:38 -07:00

.gitignore

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acct.c

Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-01-08 12:19:57 -08:00

async.c

kernel/async: remove redundant declaration.

2012-01-13 09:32:18 +10:30

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

…

audit.c

constify path argument of audit_log_d_path()

2012-03-20 21:29:40 -04:00

audit.h

audit: remove AUDIT_SETUP_CONTEXT as it isn't used

2012-01-17 16:16:57 -05:00

auditfilter.c

audit: allow interfield comparison in audit rules

2012-01-17 16:17:01 -05:00

auditsc.c

kernel-doc: fix new warnings in auditsc.c

2012-01-23 08:44:53 -08:00

backtracetest.c

…

bounds.c

…

capability.c

Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call"

2012-01-17 10:19:41 -08:00

cgroup_freezer.c

Merge branch 'Linux 3.0.21' into msm-3.0

2012-03-30 00:09:34 -07:00

cgroup.c

kernel: cgroup: push rcu read locking from css_is_ancestor() to callsite

2013-06-18 10:24:02 -07:00

compat.c

compat: Fix RT signal mask corruption via sigprocmask

2012-05-10 08:58:33 -07:00

configs.c

kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n

2011-07-25 20:57:15 -07:00

cpu_pm.c

ARM: cpu_pm: Add cpu power management notifiers

2011-11-29 16:42:33 -05:00

cpu.c

CPU hotplug, debug: detect imbalance between get_online_cpus() and put_online_cpus()

2013-12-05 20:21:47 -08:00

cpuset.c

Merge tag 'for-linus' of git://github.com/rustyrussell/linux

2012-04-02 08:53:24 -07:00

crash_dump.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

cred.c

cred: copy_process() should clear child->replacement_session_keyring

2012-04-11 08:20:11 -07:00

delayacct.c

KVM: Steal time implementation

2011-07-14 12:59:14 +03:00

dma.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

elfcore.c

…

exec_domain.c

…

exit.c

Revert "msm: move printk out of spin lock low_water_lock"

2013-08-15 17:35:29 -07:00

extable.c

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fork.c

mm: remove swap token code

2013-06-18 10:24:00 -07:00

freezer.c

PM / Freezer: Remove references to TIF_FREEZE in comments

2012-03-04 23:08:54 +01:00

futex_compat.c

futex: Mark get_robust_list as deprecated

2012-03-29 11:37:17 +02:00

futex.c

Merge branch 'Linux 3.0.21' into msm-3.0

2012-03-30 00:09:34 -07:00

groups.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

hrtimer.c

Revert "hrtimer: Consider preemption when migrating hrtimer cpu_bases"

2013-04-26 16:37:27 -07:00

hung_task.c

hung_task: fix the broken rcu_lock_break() logic

2012-03-05 15:49:42 -08:00

irq_work.c

irq_work: fix compile failure on tile from missing include

2012-04-13 13:15:16 -04:00

itimer.c

itimer: Use printk_once instead of WARN_ONCE

2012-04-10 11:00:30 +02:00

jump_label.c

static keys: Inline the static_key_enabled() function

2012-02-28 20:01:08 +01:00

kallsyms.c

vsprintf: Fix %ps on non symbols when using kallsyms

2012-04-23 14:29:54 -07:00

Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

Kconfig.preempt

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

kexec.c

Merge branch 'akpm' (Andrew's patch-bomb)

2012-03-28 17:19:28 -07:00

kfifo.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

kmod.c

PM / Sleep: Mitigate race between the freezer and request_firmware()

2012-03-28 23:30:28 +02:00

kprobes.c

Merge branch 'Linux 3.0.21' into msm-3.0

2012-03-30 00:09:34 -07:00

ksysfs.c

rcu: Add a module parameter to force use of expedited RCU primitives

2014-05-05 15:49:18 -07:00

kthread.c

freezer: kill unused set_freezable_with_signal()

2011-11-23 09:28:17 -08:00

latencytop.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

lockdep_internals.h

…

lockdep_proc.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

lockdep_states.h

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lockdep.c

lockdep: Add CPU-idle/offline warning to lockdep-RCU splat

2012-02-21 09:06:06 -08:00

Makefile

sysctl: Move the implementation into fs/proc/proc_sysctl.c

2012-01-24 16:37:54 -08:00

module.c

module: Remove module size limit

2012-03-26 12:50:53 +10:30

mutex-debug.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mutex-debug.h

…

mutex.c

sched/rt: Use schedule_preempt_disabled()

2012-03-01 10:28:03 +01:00

mutex.h

…

notifier.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

nsproxy.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

padata.c

padata: Fix cpu hotplug

2012-03-29 19:52:46 +08:00

panic.c

coresight: abort coresight tracing on kernel panic

2013-01-15 16:16:09 -08:00

params.c

params: <level>_initcall-like kernel parameters

2012-03-26 12:50:51 +10:30

pid_namespace.c

pidns: add reboot_pid_ns() to handle the reboot syscall

2012-03-28 17:14:36 -07:00

pid.c

kernel: Mark find_task_by_vpid with EXPORT_SYMBOL_GPL

2013-04-18 22:29:37 -06:00

posix-cpu-timers.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

posix-timers.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

printk.c

printk: Defer CPU_ONLINE console flushing

2012-10-10 09:44:32 -07:00

profile.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

ptrace.c

ptrace: remove PTRACE_SEIZE_DEVEL bit

2012-03-23 16:58:41 -07:00

range.c

range: fix bogus misuse of module.h to get printk()

2011-10-31 09:20:11 -04:00

rcu.h

rcu: Add a module parameter to force use of expedited RCU primitives

2014-05-05 15:49:18 -07:00

rcupdate.c

rcu: Add a module parameter to force use of expedited RCU primitives

2014-05-05 15:49:18 -07:00

rcutiny_plugin.h

rcu: Add a module parameter to force use of expedited RCU primitives

2014-05-05 15:49:18 -07:00

rcutiny.c

rcu: Add RCU_NONIDLE() for idle-loop RCU read-side critical sections

2012-02-21 09:06:13 -08:00

rcutorture.c

PTR_ERR should be called before its argument is cleared.

2012-02-21 09:06:10 -08:00

rcutree_plugin.h

rcu: Add a module parameter to force use of expedited RCU primitives

2014-05-05 15:49:18 -07:00

rcutree_trace.c

rcu: Rework detection of use of RCU by offline CPUs

2012-02-21 09:06:07 -08:00

rcutree.c

rcu: Add a module parameter to force use of expedited RCU primitives

2014-05-05 15:49:18 -07:00

rcutree.h

rcu: Rework detection of use of RCU by offline CPUs

2012-02-21 09:06:07 -08:00

relay.c

relay: prevent integer overflow in relay_open()

2012-02-10 09:04:49 +01:00

res_counter.c

net: introduce res_counter_charge_nofail() for socket allocations

2012-01-22 15:08:46 -05:00

resource.c

Merge commit 'AU_LINUX_ANDROID_ICS.04.00.04.00.126' into msm-3.4

2012-06-06 18:45:28 -07:00

rtmutex_common.h

…

rtmutex-debug.c

lockdep, rtmutex, bug: Show taint flags on error

2011-12-06 08:16:49 +01:00

rtmutex-debug.h

…

rtmutex-tester.c

rtmutex-tester: convert sysdev_class to a regular subsystem

2011-12-14 14:54:22 -08:00

rtmutex.c

Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"

2011-12-11 10:33:18 -08:00

rtmutex.h

…

rwsem.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

seccomp.c

seccomp: audit abnormal end to a process due to seccomp

2012-01-17 16:16:55 -05:00

semaphore.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

signal.c

signal: always clear sa_restorer on execve

2013-06-03 15:19:49 -07:00

smp.c

smp: Relax irqs_disable() warning in smp_call_function_single()

2013-09-23 16:33:49 -07:00

softirq.c

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

2012-03-20 10:32:09 -07:00

spinlock.c

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

srcu.c

rcu: Call out dangers of expedited RCU primitives

2012-02-21 09:06:08 -08:00

stacktrace.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

stop_machine.c

Drop whitespace, Kconfigs, Makefile noise and dead code

2013-03-14 09:32:58 -07:00

sys_ni.c

Cross Memory Attach

2011-10-31 17:30:44 -07:00

sys.c

kernel/sys.c: fix stack memory content leak via UNAME26

2013-03-06 10:07:28 -08:00

sysctl_binary.c

sysctl: add cold_boot sysctl entry

2013-10-07 12:28:53 +05:30

sysctl.c

add extra free kbytes tunable

2013-11-27 11:01:37 -08:00

taskstats.c

Make TASKSTATS require root access

2011-12-21 12:57:40 -08:00

test_kprobes.c

…

time.c

time: Remove bogus comments

2012-03-15 18:17:55 -07:00

timeconst.pl

…

timer.c

timer: Don't reinitialize the cpu base lock during CPU_UP_PREPARE

2013-05-07 18:04:03 +05:30

tracepoint.c

static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()

2012-02-24 10:05:59 +01:00

tsacct.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

uid16.c

…

up.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user_namespace.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user-return-notifier.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

user.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

utsname_sysctl.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

utsname.c

kernel: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

wait.c

lockdep/waitqueues: Add better annotation

2011-12-21 10:07:39 +01:00

watchdog.c

watchdog: Fix warning caused by use of smp_processor_id()

2013-09-20 14:26:29 -07:00

workqueue_sched.h

…

workqueue.c

kernel/lib: add additional debug capabilites for data corruption

2013-07-17 15:53:24 -07:00