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| author |   Thomas Gleixner <tglx@linutronix.de> | 2016-07-13 17:16:29 +0000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-07-14 09:34:43 +0200 |
| commit | 7ee681b25284782ecf380bf5ccf55f13c52fd0ce (patch) | |
| tree | 3e3c0c734c5248f7342b8303908f5f824a6774ef /include | |
| parent | perf/x86/amd/power: Convert the hotplug notifier to state machine (diff) | |
| download | wireguard-linux-7ee681b25284782ecf380bf5ccf55f13c52fd0ce.tar.xz wireguard-linux-7ee681b25284782ecf380bf5ccf55f13c52fd0ce.zip | |
workqueue: Convert to state machine callbacks
Get rid of the prio ordering of the separate notifiers and use a proper state
callback pair.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153335.197083890@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cpu.h | 9 | ||||
| -rw-r--r-- | include/linux/cpuhotplug.h | 2 | ||||
| -rw-r--r-- | include/linux/workqueue.h | 6 |
3 files changed, 8 insertions, 9 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index ca2dd865a34e..797d9c8e9a1b 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -55,15 +55,6 @@ extern ssize_t arch_cpu_release(const char *, size_t); #endif struct notifier_block; -/* - * CPU notifier priorities. - */ -enum { - /* bring up workqueues before normal notifiers and down after */ - CPU_PRI_WORKQUEUE_UP = 5, - CPU_PRI_WORKQUEUE_DOWN = -5, -}; - #define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ #define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ #define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index acfeda137df8..60557a9e783d 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -12,6 +12,7 @@ enum cpuhp_state { CPUHP_PERF_BFIN, CPUHP_PERF_POWER, CPUHP_PERF_SUPERH, + CPUHP_WORKQUEUE_PREP, CPUHP_NOTIFY_PREPARE, CPUHP_BRINGUP_CPU, CPUHP_AP_IDLE_DEAD, @@ -49,6 +50,7 @@ enum cpuhp_state { CPUHP_AP_PERF_S390_SF_ONLINE, CPUHP_AP_PERF_ARM_CCI_ONLINE, CPUHP_AP_PERF_ARM_CCN_ONLINE, + CPUHP_AP_WORKQUEUE_ONLINE, CPUHP_AP_NOTIFY_ONLINE, CPUHP_AP_ONLINE_DYN, CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30, diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index ca73c503b92a..26cc1df280d6 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -625,4 +625,10 @@ void wq_watchdog_touch(int cpu); static inline void wq_watchdog_touch(int cpu) { } #endif /* CONFIG_WQ_WATCHDOG */ +#ifdef CONFIG_SMP +int workqueue_prepare_cpu(unsigned int cpu); +int workqueue_online_cpu(unsigned int cpu); +int workqueue_offline_cpu(unsigned int cpu); +#endif + #endif |