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 <rient...@google.com>
---
arch/x86/include/asm/paravirt.h | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -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);
}
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
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,
native_pmd_val(pmd));
}
-#endif
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
{
--
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