On Thu, 31 Mar 2005, Christoph Hellwig wrote: > On Wed, Mar 30, 2005 at 06:36:18PM +0530, shobhit dayal wrote: > > The goal here is to replace the head of a existing list pointed to by > > 'list' with a new head pointed to by 'nlist'. > > First there is a memcpy that copies the contents of list to nlist then > > this macro is called. > > The macro makes sure that if the old head was empty then INIT_LIST_HEAD > > the 'nlist', if not then make sure that the nodes before and after the > > head now correclty point to nlist instead of list. > > Which would be much nicer done using INIT_LIST_HEAD on the new head > always and then calling list_replace (of which currently only a _rcu variant > exists). > > Note to Christoph: Just duplicating the code doesn't make it better ;-)
I will need the loop there for the prezeroing stuff later. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
