Because the field "pprev" holds the address of the "next" field in the
previous node.
And *pprev = next; just like the prev->next = next; connect the two nodes
in forward direction.
Hope it's helpful for you.
On Thu, Apr 8, 2010 at 1:58 PM, Onkar Mahajan <kern.de...@gmail.com> wrote:
> I am not able to understand how the marked like skips the node n :
>
> static inline void __hlist_del(struct hlist_node *n)
> {
> struct hlist_node *next = n->next;
> struct hlist_node **pprev = n->pprev;
> *pprev = next; <---------------------------------------------------
> ????
> if (next)
> next->pprev = pprev;
> }
>
> in this case
>
> static inline void __list_del(struct list_head * prev, struct list_head *
> next)
> {
> next->prev = prev;
> prev->next = next;
> }
>
> It is clear ...
>
>
> Please help.
>
> Regards,
> Onkar
>
>
--
Yours sincerely
ZhangMeng
