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mm, dax: convert vmf_insert_pfn_pmd() to pfn_t

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Similar to the conversion of vm_insert_mixed() use pfn_t in the
vmf_insert_pfn_pmd() to tag the resulting pte with _PAGE_DEVICE when the
pfn is backed by a devm_memremap_pages() mapping.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Williams 2016-01-15 16:56:43 -08:00 • committed by Linus Torvalds
parent 01c8f1c44b
commit f25748e3c3
8 changed files with 30 additions and 11 deletions
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8
include/linux/pfn_t.h
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@ -77,6 +77,13 @@ static inline pte_t pfn_t_pte(pfn_t pfn, pgprot_t pgprot)
}
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static inline pmd_t pfn_t_pmd(pfn_t pfn, pgprot_t pgprot)
{
return pfn_pmd(pfn_t_to_pfn(pfn), pgprot);
}
#endif
#ifdef __HAVE_ARCH_PTE_DEVMAP
static inline bool pfn_t_devmap(pfn_t pfn)
{
@ -90,5 +97,6 @@ static inline bool pfn_t_devmap(pfn_t pfn)
return false;
}
pte_t pte_mkdevmap(pte_t pte);
pmd_t pmd_mkdevmap(pmd_t pmd);
#endif
#endif /* _LINUX_PFN_T_H_ */