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missing include asm/paravirt.h in cputime.c

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Add include asm/paravirt.h to cputime.c, as steal_account_process_tick
calls paravirt_steal_clock, which is defined in asm/paravirt.h.

The ifdef CONFIG_PARAVIRT is necessary because not all archs have an
asm/paravirt.h to include.

The reason why currently cputime.c compiles, even though include
<asm/paravirt.h> is missing, is that on x86 asm/paravirt.h is included
by one of the other headers included in kernel/sched/cputime.c:

On arm and arm64, where I am about to introduce asm/paravirt.h and
stolen time support, without #include <asm/paravirt.h> in cputime.c, I
would get an error.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
This commit is contained in:
Stefano Stabellini 2015-11-10 12:36:46 +00:00 committed by David Vrabel
parent 4ccefbe597
commit 1fe7c4ef88
1 changed files with 3 additions and 0 deletions
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3
kernel/sched/cputime.c
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@ -5,6 +5,9 @@
#include <linux/static_key.h>
#include <linux/context_tracking.h>
#include "sched.h"
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#endif
#ifdef CONFIG_IRQ_TIME_ACCOUNTING