**pprev in struct hlist_node in linux/list.h

[Vinay Shetty <vinayshetty15@xxxxxxxxx>]

Hi,

I was just looking through the hlist implementation and found it somewhat confusing. 

I did get a better idea after referring to this :

http://mail.nl.linux.org/kernelnewbies/2008-02/msg00001.html

But what i did observe was that , unlike the list_* macros , the hlist_* macros do not traverse the list in reverse and hence, do not make use of the **pprev pointer. So, isnt it better to have just a singly linked list instead ?

Please forgive me if i am missing something obvious, but some explanation on this would be appreciated.

Thanks.