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authorLen Brown <len.brown@intel.com>2010-08-15 01:06:31 -0400
committerLen Brown <len.brown@intel.com>2010-08-15 01:06:31 -0400
commit95ee46aa8698f2000647dfb362400fadbb5807cf (patch)
treee5a05c7297f997e191c73091934e42e3195c0e40 /include/linux/cpu.h
parentcfa806f059801dbe7e435745eb2e187c8bfe1e7f (diff)
parent92fa5bd9a946b6e7aab6764e7312e4e3d9bed295 (diff)
Merge branch 'linus' into release
Conflicts: drivers/acpi/debug.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux/cpu.h')
-rw-r--r--include/linux/cpu.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index e287863ac053..4823af64e9db 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -48,6 +48,33 @@ extern ssize_t arch_cpu_release(const char *, size_t);
48#endif 48#endif
49struct notifier_block; 49struct notifier_block;
50 50
51/*
52 * CPU notifier priorities.
53 */
54enum {
55 /*
56 * SCHED_ACTIVE marks a cpu which is coming up active during
57 * CPU_ONLINE and CPU_DOWN_FAILED and must be the first
58 * notifier. CPUSET_ACTIVE adjusts cpuset according to
59 * cpu_active mask right after SCHED_ACTIVE. During
60 * CPU_DOWN_PREPARE, SCHED_INACTIVE and CPUSET_INACTIVE are
61 * ordered in the similar way.
62 *
63 * This ordering guarantees consistent cpu_active mask and
64 * migration behavior to all cpu notifiers.
65 */
66 CPU_PRI_SCHED_ACTIVE = INT_MAX,
67 CPU_PRI_CPUSET_ACTIVE = INT_MAX - 1,
68 CPU_PRI_SCHED_INACTIVE = INT_MIN + 1,
69 CPU_PRI_CPUSET_INACTIVE = INT_MIN,
70
71 /* migration should happen before other stuff but after perf */
72 CPU_PRI_PERF = 20,
73 CPU_PRI_MIGRATION = 10,
74 /* prepare workqueues for other notifiers */
75 CPU_PRI_WORKQUEUE = 5,
76};
77
51#ifdef CONFIG_SMP 78#ifdef CONFIG_SMP
52/* Need to know about CPUs going up/down? */ 79/* Need to know about CPUs going up/down? */
53#if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) 80#if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE)