[Xen-devel] [PATCH v7 1/2] xen: export do_block, add a parameter to enable local events delivery

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 xen/common/schedule.c   |    9 +++++----
 xen/include/xen/sched.h |    1 +
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/xen/common/schedule.c b/xen/common/schedule.c
index c1cd3d0..1f41619 100644
--- a/xen/common/schedule.c
+++ b/xen/common/schedule.c
@@ -677,11 +677,12 @@ int vcpu_set_affinity(struct vcpu *v, const cpumask_t 
*affinity)
 }
 
 /* Block the currently-executing domain until a pertinent event occurs. */
-static long do_block(void)
+int do_block(int event_delivery_enable)
 {
     struct vcpu *v = current;
 
-    local_event_delivery_enable();
+    if ( event_delivery_enable )
+        local_event_delivery_enable();
     set_bit(_VPF_blocked, &v->pause_flags);
 
     /* Check for events /after/ blocking: avoids wakeup waiting race. */
@@ -870,7 +871,7 @@ long do_sched_op_compat(int cmd, unsigned long arg)
 
     case SCHEDOP_block:
     {
-        ret = do_block();
+        ret = do_block(1);
         break;
     }
 
@@ -907,7 +908,7 @@ ret_t do_sched_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
 
     case SCHEDOP_block:
     {
-        ret = do_block();
+        ret = do_block(1);
         break;
     }
 
diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
index ad971d2..23d5efd 100644
--- a/xen/include/xen/sched.h
+++ b/xen/include/xen/sched.h
@@ -690,6 +690,7 @@ static inline int vcpu_runnable(struct vcpu *v)
              atomic_read(&v->domain->pause_count));
 }
 
+int do_block(int event_delivery_enable);
 void vcpu_unblock(struct vcpu *v);
 void vcpu_pause(struct vcpu *v);
 void vcpu_pause_nosync(struct vcpu *v);
-- 
1.7.2.5


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