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SubjectRe: Fwd: [PATCH] Pageset Localization V2
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.
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