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x86, paravirt: fix build error when thp is disabled 

With CONFIG_PARAVIRT=y and CONFIG_TRANSPARENT_HUGEPAGE=n, the build breaks
because set_pmd_at() is undeclared:

  mm/memory.c: In function 'do_pmd_numa_page':
  mm/memory.c:3520: error: implicit declaration of function 'set_pmd_at'
  mm/mprotect.c: In function 'change_pmd_protnuma':
  mm/mprotect.c:120: error: implicit declaration of function 'set_pmd_at'

This is because paravirt defines set_pmd_at() only when
CONFIG_TRANSPARENT_HUGEPAGE=y and such a restriction is unneeded.  The
fix is to define it for all CONFIG_PARAVIRT configurations.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Rientjes 2012-12-18 00:03:23 -08:00 committed by Linus Torvalds
parent ea77d73c46
commit c36e0501ee
1 changed files with 0 additions and 2 deletions
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2
arch/x86/include/asm/paravirt.h
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@ -528,7 +528,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte); PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
} }
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd) pmd_t *pmdp, pmd_t pmd)
{ {
@ -539,7 +538,6 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp, PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp,
native_pmd_val(pmd)); native_pmd_val(pmd));
} }
#endif
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
{ {