Frederic Weisbecker 04e7e95153 rcu: Switch task's syscall hooks on context switch ...

Clear the syscalls hook of a task when it's scheduled out so that if
the task migrates, it doesn't run the syscall slow path on a CPU
that might not need it.

Also set the syscalls hook on the next task if needed.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Alessio Igor Bogani <abogani@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Avi Kivity <avi@redhat.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Max Krasnyansky <maxk@qualcomm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sven-Thorsten Dietrich <thebigcorporation@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

2012-09-26 15:47:02 +02:00

..

debug

kernel/debug: Make use of KGDB_REASON_NMI

2012-07-31 08:16:43 -05:00

events

perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled

2012-09-04 17:29:53 +02:00

gcov

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irq

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

2012-08-03 10:56:44 -07:00

power

Revert "NMI watchdog: fix for lockup detector breakage on resume"

2012-08-08 20:49:45 +02:00

sched

rcu: Switch task's syscall hooks on context switch

2012-09-26 15:47:02 +02:00

time

Merge remote-tracking branch 'tip/core/rcu' into next.2012.09.25b

2012-09-25 10:03:56 -07:00

trace

tracing/syscalls: Fix perf syscall tracing when syscall_nr == -1

2012-08-17 15:19:46 -04:00

.gitignore

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acct.c

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async.c

[SCSI] async: make async_synchronize_full() flush all work regardless of domain

2012-07-20 09:07:37 +01:00

audit_tree.c

audit: clean up refcounting in audit-tree

2012-08-15 12:55:22 +02:00

audit_watch.c

get rid of kern_path_parent()

2012-07-14 16:35:02 +04:00

audit.c

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

2012-08-01 10:26:23 -07:00

audit.h

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auditfilter.c

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auditsc.c

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backtracetest.c

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bounds.c

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capability.c

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cgroup_freezer.c

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cgroup.c

Merge branch 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2012-07-24 17:47:44 -07:00

compat.c

…

configs.c

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cpu_pm.c

kernel/cpu_pm.c: fix various typos

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

cpu.c

smpboot: Provide infrastructure for percpu hotplug threads

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

cpuset.c

cpusets: Remove/update outdated comments

2012-07-24 13:53:28 +02:00

crash_dump.c

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cred.c

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delayacct.c

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dma.c

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elfcore.c

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exec_domain.c

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exit.c

posix_types.h: Cleanup stale __NFDBITS and related definitions

2012-07-26 13:36:43 -07:00

extable.c

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fork.c

uprobes: Fix mmap_region()'s mm->mm_rb corruption if uprobe_mmap() fails

2012-08-21 11:48:12 +02:00

freezer.c

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futex_compat.c

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futex.c

futex: Forbid uaddr == uaddr2 in futex_wait_requeue_pi()

2012-07-24 16:02:57 +02:00

groups.c

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hrtimer.c

hrtimer: Update hrtimer base offsets each hrtimer_interrupt

2012-07-11 23:34:39 +02:00

hung_task.c

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irq_work.c

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itimer.c

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jump_label.c

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kallsyms.c

vsprintf: fix %ps on non symbols when using kallsyms

2012-05-29 16:22:32 -07:00

kcmp.c

syscalls, x86: add __NR_kcmp syscall

2012-05-31 17:49:32 -07:00

Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kexec.c

kdump: append newline to the last lien of vmcoreinfo note

2012-07-30 17:25:20 -07:00

kfifo.c

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kmod.c

kmod: avoid deadlock from recursive kmod call

2012-07-30 17:25:20 -07:00

kprobes.c

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ksysfs.c

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kthread.c

kthread: Implement park/unpark facility

2012-08-13 17:01:06 +02:00

latencytop.c

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lglock.c

brlocks/lglocks: turn into functions

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

lockdep_internals.h

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lockdep_proc.c

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lockdep_states.h

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lockdep.c

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Makefile

hotplug: Fix UP bug in smpboot hotplug code

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

module.c

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mutex-debug.c

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mutex-debug.h

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mutex.c

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mutex.h

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notifier.c

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nsproxy.c

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padata.c

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panic.c

panic: fix a possible deadlock in panic()

2012-07-30 17:25:13 -07:00

params.c

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pid_namespace.c

pid-namespace: limit value of ns_last_pid to (0, max_pid)

2012-09-17 15:00:38 -07:00

pid.c

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posix-cpu-timers.c

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posix-timers.c

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printk.c

printk: Fix calculation of length used to discard records

2012-08-12 21:25:50 +03:00

profile.c

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ptrace.c

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range.c

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rcu.h

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rcupdate.c

rcu: Add PROVE_RCU_DELAY to provoke difficult races

2012-09-23 07:42:49 -07:00

rcutiny_plugin.h

rcu: Move TINY_PREEMPT_RCU away from raw_local_irq_save()

2012-09-23 07:42:51 -07:00

rcutiny.c

rcu: Move TINY_RCU quiescent state out of extended quiescent state

2012-09-23 07:42:52 -07:00

rcutorture.c

rcu: Prevent initialization race in rcutorture kthreads

2012-09-23 07:42:23 -07:00

rcutree_plugin.h

rcu: Make RCU_FAST_NO_HZ handle adaptive ticks

2012-09-26 15:44:02 +02:00

rcutree_trace.c

Merge remote-tracking branch 'tip/smp/hotplug' into next.2012.09.25b

2012-09-25 10:01:45 -07:00

rcutree.c

rcu: Switch task's syscall hooks on context switch

2012-09-26 15:47:02 +02:00

rcutree.h

rcu: Ignore userspace extended quiescent state by default

2012-09-26 15:47:01 +02:00

relay.c

splice: fix racy pipe->buffers uses

2012-06-13 21:16:42 +02:00

res_counter.c

rescounters: add res_counter_uncharge_until()

2012-05-29 16:22:27 -07:00

resource.c

resource: make sure requested range is included in the root range

2012-07-30 17:25:21 -07:00

rtmutex_common.h

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rtmutex-debug.c

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rtmutex-debug.h

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rtmutex-tester.c

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rtmutex.c

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rtmutex.h

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rwsem.c

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seccomp.c

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semaphore.c

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signal.c

signal: make sure we don't get stopped with pending task_work

2012-07-22 23:57:54 +04:00

smp.c

smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]()

2012-06-05 17:27:14 +02:00

smpboot.c

hotplug: Fix UP bug in smpboot hotplug code

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

smpboot.h

smpboot: Provide infrastructure for percpu hotplug threads

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

softirq.c

softirq: Use hotplug thread infrastructure

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

spinlock.c

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srcu.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

syscalls, x86: add __NR_kcmp syscall

2012-05-31 17:49:32 -07:00

sys.c

kernel/sys.c: avoid argv_free(NULL)

2012-07-30 17:25:13 -07:00

sysctl_binary.c

mm: prepare for removal of obsolete /proc/sys/vm/nr_pdflush_threads

2012-07-31 18:42:40 -07:00

sysctl.c

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

2012-08-01 10:26:23 -07:00

task_work.c

task_work: add a scheduling point in task_work_run()

2012-08-21 09:11:44 -07:00

taskstats.c

taskstats: check nla_reserve() return

2012-07-30 17:25:21 -07:00

test_kprobes.c

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time.c

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timeconst.pl

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timer.c

alpha: take a bunch of syscalls into osf_sys.c

2012-08-19 08:41:19 -07:00

tracepoint.c

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tsacct.c

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uid16.c

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up.c

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user_namespace.c

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user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

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wait.c

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watchdog.c

watchdog: Use hotplug thread infrastructure

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

workqueue_sched.h

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workqueue.c

workqueue: reimplement work_on_cpu() using system_wq

2012-09-19 10:13:12 -07:00