[libvirt] [PATCH 4/5] security_stack: Turn list of nested drivers into a doubly linked list
In near future we will need to walk through the list of internal
drivers in reversed order. The simplest solution is to turn
singly linked list into a doubly linked list.
We will not need to start from the end really, so there's no tail
pointer kept.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
src/security/security_stack.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/security/security_stack.c b/src/security/security_stack.c
index dd055075cb..51a8b76748 100644
--- a/src/security/security_stack.c
+++ b/src/security/security_stack.c
@@ -35,6 +35,7 @@ typedef virSecurityStackItem *virSecurityStackItemPtr;
struct _virSecurityStackItem {
virSecurityManagerPtr securityManager;
virSecurityStackItemPtr next;
+ virSecurityStackItemPtr prev;
};
struct _virSecurityStackData {
@@ -56,6 +57,7 @@ virSecurityStackAddNested(virSecurityManagerPtr mgr,
if (VIR_ALLOC(item) < 0)
return -1;
item->securityManager = nested;
+ item->prev = tmp;
if (tmp)
tmp->next = item;
else
--
2.21.0