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authorThomas Gleixner <tglx@linutronix.de>2016-02-26 21:43:29 +0300
committerThomas Gleixner <tglx@linutronix.de>2016-03-01 22:36:54 +0300
commit4baa0afc6719cbf36a1e08551484a641926b3fd1 (patch)
treecfdfc5dca7ad32022340ac95c31092fc32984000 /include/linux
parentcff7d378d3fdbb53db9b6e2578b14855f401cd41 (diff)
downloadlinux-4baa0afc6719cbf36a1e08551484a641926b3fd1.tar.xz
cpu/hotplug: Convert the hotplugged cpu work to a state machine
Move the functions which need to run on the hotplugged processor into a state machine array and let the code iterate through these functions. In a later state, this will grow synchronization points between the control processor and the hotplugged processor, so we can move the various architecture implementations of the synchronizations to the core. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: Rik van Riel <riel@redhat.com> Cc: Rafael Wysocki <rafael.j.wysocki@intel.com> Cc: "Srivatsa S. Bhat" <srivatsa@mit.edu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Tejun Heo <tj@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Turner <pjt@google.com> Link: http://lkml.kernel.org/r/20160226182340.770651526@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/cpuhotplug.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index d55c9e64acd7..d9303cca83d3 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -6,6 +6,10 @@ enum cpuhp_state {
CPUHP_CREATE_THREADS,
CPUHP_NOTIFY_PREPARE,
CPUHP_BRINGUP_CPU,
+ CPUHP_AP_OFFLINE,
+ CPUHP_AP_NOTIFY_STARTING,
+ CPUHP_AP_ONLINE,
+ CPUHP_TEARDOWN_CPU,
CPUHP_NOTIFY_ONLINE,
CPUHP_ONLINE,
};