Waiman Long b341afb325 locking/mutex: Enable optimistic spinning of woken waiter ...

This patch makes the waiter that sets the HANDOFF flag start spinning
instead of sleeping until the handoff is complete or the owner
sleeps. Otherwise, the handoff will cause the optimistic spinners to
abort spinning as the handed-off owner may not be running.

Tested-by: Jason Low <[email protected]>
Signed-off-by: Waiman Long <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Ding Tianhong <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tim Chen <[email protected]>
Cc: Will Deacon <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>

2016-10-25 11:31:54 +02:00

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bpf

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

2016-10-10 20:16:43 -07:00

configs

config: android: enable CONFIG_SECCOMP

2016-10-11 15:06:32 -07:00

debug

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events

mm: replace get_user_pages_remote() write/force parameters with gup_flags

2016-10-19 08:12:02 -07:00

gcov

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irq

kernel/irq: Export irq_set_parent()

2016-10-21 10:21:38 +02:00

livepatch

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locking

locking/mutex: Enable optimistic spinning of woken waiter

2016-10-25 11:31:54 +02:00

power

oom, suspend: fix oom_killer_disable vs. pm suspend properly

2016-10-07 18:46:27 -07:00

printk

printk: suppress empty continuation lines

2016-10-19 09:11:24 -07:00

rcu

Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2016-10-15 10:03:15 -07:00

sched

locking/mutex: Rework mutex::owner

2016-10-25 11:31:50 +02:00

time

alarmtimer: Remove unused but set variable

2016-10-17 11:59:37 +02:00

trace

Disable the __builtin_return_address() warning globally after all

2016-10-12 10:23:41 -07:00

.gitignore

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acct.c

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async.c

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audit_fsnotify.c

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audit_tree.c

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audit_watch.c

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audit.c

Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit

2016-10-04 14:21:41 -07:00

audit.h

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auditfilter.c

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auditsc.c

Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit

2016-10-04 14:21:41 -07:00

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_pids.c

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cgroup.c

Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2016-10-14 12:18:50 -07:00

compat.c

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configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

cpu/hotplug: Use distinct name for cpu_hotplug.dep_map

2016-10-16 11:09:32 +02:00

cpuset.c

Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2016-10-14 12:18:50 -07:00

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

mm, oom: enforce exit_oom_victim on current task

2016-10-07 18:46:28 -07:00

extable.c

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fork.c

Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2016-10-15 10:03:15 -07:00

freezer.c

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futex_compat.c

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futex.c

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groups.c

cred: simpler, 1D supplementary groups

2016-10-07 18:46:30 -07:00

hung_task.c

hung_task: allow hung_task_panic when hung_task_warnings is 0

2016-10-11 15:06:33 -07:00

irq_work.c

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jump_label.c

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kallsyms.c

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kcmp.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES

2016-10-25 11:31:51 +02:00

Kconfig.preempt

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kcov.c

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kexec_core.c

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kexec_file.c

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kexec_internal.h

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kexec.c

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kmod.c

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kprobes.c

kprobes: include <asm/sections.h> instead of <asm-generic/sections.h>

2016-10-11 15:06:31 -07:00

ksysfs.c

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kthread.c

kthread: better support freezable kthread workers

2016-10-11 15:06:33 -07:00

latencytop.c

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Makefile

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membarrier.c

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memremap.c

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module_signing.c

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module-internal.h

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module.c

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notifier.c

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nsproxy.c

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padata.c

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panic.c

x86/panic: replace smp_send_stop() with kdump friendly version in panic path

2016-10-11 15:06:32 -07:00

params.c

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pid_namespace.c

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pid.c

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profile.c

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ptrace.c

mm: replace access_process_vm() write parameter with gup_flags

2016-10-19 08:31:25 -07:00

range.c

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reboot.c

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relay.c

relay: Use irq_work instead of plain timer for deferred wakeup

2016-10-11 15:06:32 -07:00

resource.c

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seccomp.c

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signal.c

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smp.c

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smpboot.c

kthread/smpboot: do not park in kthread_create_on_cpu()

2016-10-11 15:06:33 -07:00

smpboot.h

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softirq.c

Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2016-10-15 10:03:15 -07:00

stacktrace.c

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stop_machine.c

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

2016-10-03 13:39:00 -07:00

sys_ni.c

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sys.c

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sysctl_binary.c

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sysctl.c

Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2016-10-10 13:04:49 -07:00

task_work.c

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taskstats.c

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test_kprobes.c

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torture.c

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tracepoint.c

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tsacct.c

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ucount.c

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uid16.c

cred: simpler, 1D supplementary groups

2016-10-07 18:46:30 -07:00

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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watchdog.c

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workqueue_internal.h

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workqueue.c

kthread: rename probe_kthread_data() to kthread_probe_data()

2016-10-11 15:06:33 -07:00