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mm: do not define PFN_SECTION_SHIFT if !CONFIG_SPARSEMEM

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Do not define PFN_SECTION_SHIFT if !CONFIG_SPARSEMEM.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Kiper 2011-05-24 17:12:34 -07:00 committed by Linus Torvalds
parent e3c40f379a
commit ba93fa81b5
1 changed files with 0 additions and 4 deletions
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4
include/linux/mm.h
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@ -605,10 +605,6 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
#define NODE_NOT_IN_PAGE_FLAGS
#endif
#ifndef PFN_SECTION_SHIFT
#define PFN_SECTION_SHIFT 0
#endif
/*
* Define the bit shifts to access each section. For non-existent
* sections we define the shift as 0; that plus a 0 mask ensures