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-rw-r--r--lib/lists.c29
1 files changed, 6 insertions, 23 deletions
diff --git a/lib/lists.c b/lib/lists.c
index d323a4b6..12ef3cc6 100644
--- a/lib/lists.c
+++ b/lib/lists.c
@@ -41,7 +41,7 @@ add_tail(list *l, node *n)
{
node *z = l->tail;
- n->next = (node *) &l->null;
+ n->next = &l->tail_node;
n->prev = z;
z->next = n;
l->tail = n;
@@ -60,7 +60,7 @@ add_head(list *l, node *n)
node *z = l->head;
n->next = z;
- n->prev = (node *) &l->head;
+ n->prev = &l->head_node;
z->prev = n;
l->head = n;
}
@@ -88,7 +88,7 @@ insert_node(node *n, node *after)
* rem_node - remove a node from a list
* @n: node to be removed
*
- * Removes a node @n from the list it's linked in.
+ * Removes a node @n from the list it's linked in. Afterwards, node @n is cleared.
*/
LIST_INLINE void
rem_node(node *n)
@@ -98,23 +98,6 @@ rem_node(node *n)
z->next = x;
x->prev = z;
-}
-
-/**
- * rem2_node - remove a node from a list, with cleanup
- * @n: node to be removed
- *
- * Removes a node @n from the list it's linked in and resets its pointers to NULL.
- * Useful if you want to distinguish between linked and unlinked nodes.
- */
-LIST_INLINE void
-rem2_node(node *n)
-{
- node *z = n->prev;
- node *x = n->next;
-
- z->next = x;
- x->prev = z;
n->next = NULL;
n->prev = NULL;
}
@@ -150,9 +133,9 @@ replace_node(node *old, node *new)
LIST_INLINE void
init_list(list *l)
{
- l->head = (node *) &l->null;
+ l->head = &l->tail_node;
l->null = NULL;
- l->tail = (node *) &l->head;
+ l->tail = &l->head_node;
}
/**
@@ -172,6 +155,6 @@ add_tail_list(list *to, list *l)
p->next = q;
q->prev = p;
q = l->tail;
- q->next = (node *) &to->null;
+ q->next = &to->tail_node;
to->tail = q;
}