tree 9943c93c97dcf042f5ec7c5fab011be655d8212a
parent 2bdaf115b1c364d89484b59d5b937973f1c5a5c3
author Andy Whitcroft <apw@shadowen.org> 1136535054 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1136565204 -0800

[PATCH] sparsemem: provide pfn_to_nid

Before SPARSEMEM is initialised we cannot provide an efficient pfn_to_nid()
implmentation; before initialisation is complete we use early_pfn_to_nid()
to provide location information.  Until recently there was no non-init user
of this functionality.  Provide a post init pfn_to_nid() implementation.

Note that this implmentation assumes that the pfn passed has been validated
with pfn_valid().  The current single user of this function already has
this check.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>