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authorThomas Gleixner <tglx@linutronix.de>2015-03-25 13:11:04 +0100
committerIngo Molnar <mingo@kernel.org>2015-04-01 14:23:00 +0200
commitf46481d0a7cb942b84145acb80ad43bdb1ff8eb4 (patch)
tree93ef806641010b07d8405b144203d1e862d034d7 /include/linux/tick.h
parent080873ce2d1abd8c0a2b8c87bfa0762546a6b713 (diff)
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op-kernel-dev-f46481d0a7cb942b84145acb80ad43bdb1ff8eb4.tar.gz
tick/xen: Provide and use tick_suspend_local() and tick_resume_local()
Xen calls on every cpu into tick_resume() which is just wrong. tick_resume() is for the syscore global suspend/resume invocation. What XEN really wants is a per cpu local resume function. Provide a tick_resume_local() function and use it in XEN. Also provide a complementary tick_suspend_local() and modify tick_unfreeze() and tick_freeze(), respectively, to use the new local tick resume/suspend functions. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> [ Combined two patches, rebased, modified subject/changelog. ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1698741.eezk9tnXtG@vostro.rjw.lan [ Merged to latest timers/core. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/tick.h')
-rw-r--r--include/linux/tick.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 7e07e0e..a3d4d28 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -29,13 +29,13 @@ extern struct tick_device *tick_get_device(int cpu);
extern void __init tick_init(void);
extern void tick_freeze(void);
extern void tick_unfreeze(void);
-/* Should be core only, but XEN resume magic abuses this interface */
-extern void tick_resume(void);
+/* Should be core only, but XEN resume magic requires this */
+extern void tick_resume_local(void);
#else /* CONFIG_GENERIC_CLOCKEVENTS */
static inline void tick_init(void) { }
static inline void tick_freeze(void) { }
static inline void tick_unfreeze(void) { }
-static inline void tick_resume(void) { }
+static inline void tick_resume_local(void) { }
#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
#ifdef CONFIG_TICK_ONESHOT
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