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authorJuergen Gross <jgross@suse.com>2016-07-26 15:15:11 +0300
committerDavid Vrabel <david.vrabel@citrix.com>2016-07-26 16:07:06 +0300
commitd34c30cc1fa80f509500ff192ea6bc7d30671061 (patch)
treee1efdb59cff6dbcc90f4a047d8f49f9561a1496f
parentee42d665d3f5db975caf87baf101a57235ddb566 (diff)
downloadlinux-d34c30cc1fa80f509500ff192ea6bc7d30671061.tar.xz
xen: add static initialization of steal_clock op to xen_time_ops
pv_time_ops might be overwritten with xen_time_ops after the steal_clock operation has been initialized already. To prevent calling a now uninitialized function pointer add the steal_clock static initialization to xen_time_ops. Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
-rw-r--r--arch/x86/xen/time.c1
-rw-r--r--drivers/xen/time.c2
-rw-r--r--include/xen/xen-ops.h1
3 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index fd7cd6f29b68..67356d29d74d 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -364,6 +364,7 @@ void xen_timer_resume(void)
static const struct pv_time_ops xen_time_ops __initconst = {
.sched_clock = xen_clocksource_read,
+ .steal_clock = xen_steal_clock,
};
static void __init xen_time_init(void)
diff --git a/drivers/xen/time.c b/drivers/xen/time.c
index 48c3f6983067..ac5f23fcafc2 100644
--- a/drivers/xen/time.c
+++ b/drivers/xen/time.c
@@ -80,7 +80,7 @@ bool xen_vcpu_stolen(int vcpu)
return per_cpu(xen_runstate, vcpu).state == RUNSTATE_runnable;
}
-static u64 xen_steal_clock(int cpu)
+u64 xen_steal_clock(int cpu)
{
struct vcpu_runstate_info state;
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index c9c532d56623..9a37c541822f 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -29,6 +29,7 @@ bool xen_vcpu_stolen(int vcpu);
void xen_setup_runstate_info(int cpu);
void xen_time_setup_guest(void);
void xen_get_runstate_snapshot(struct vcpu_runstate_info *res);
+u64 xen_steal_clock(int cpu);
int xen_setup_shutdown_event(void);