[PATCH] sched/core: include asm/paravirt.h

[Arnd Bergmann <arnd@arndb.de>]

One of the headers that got removed was needed after all, depending
on the configuration:

kernel/sched/core.c: In function 'update_rq_clock_task':
kernel/sched/core.c:198:50: error: 'paravirt_steal_rq_enabled' undeclared (first use in this function); did you mean 'arch_local_irq_enable'?

This restores the include.

Fixes: 004172bdad64 ("sched/core: Remove unnecessary #include headers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
The breakage was pretty obvious, so I assume others are reporting this as
well. Please just ignore my patch if this is already fixed in -tip.
---
 kernel/sched/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e2687118a878..c98f2fd8c0d3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -23,6 +23,9 @@
 
 #include <asm/switch_to.h>
 #include <asm/tlb.h>
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#endif
 
 #include "sched.h"
 #include "../workqueue_internal.h"
-- 
2.9.0