Add locking-depth debugging, introduce in_atomic() boolean.

This will be useful for debugging use of sleep-in-hypervisor
primitives.

Signed-off-by: Keir Fraser <keir@xen.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/xen/common/softirq.c b/xen/common/softirq.c
index 0a4f1e7914..fb5fcd147d 100644
--- a/xen/common/softirq.c
+++ b/xen/common/softirq.c
@@ -57,6 +57,7 @@ void process_pending_softirqs(void)
 
 asmlinkage void do_softirq(void)
 {
+    ASSERT(!in_atomic());
     __do_softirq(0);
 }