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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-07-27 01:25:29 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-27 02:19:19 +0300
commit1010245964415bb7403463115bab2cd26244b445 (patch)
tree0bb07c499e1816334dd405ea9f82381223c7479a /include/linux/huge_mm.h
parentdd78fedde4b99b322f2dc849d467d365a82e23ca (diff)
downloadlinux-1010245964415bb7403463115bab2cd26244b445.tar.xz
mm: introduce do_set_pmd()
With postponed page table allocation we have chance to setup huge pages. do_set_pte() calls do_set_pmd() if following criteria met: - page is compound; - pmd entry in pmd_none(); - vma has suitable size and alignment; Link: http://lkml.kernel.org/r/1466021202-61880-12-git-send-email-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/huge_mm.h')
-rw-r--r--include/linux/huge_mm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 9bed9249156f..254aac4c3963 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -143,6 +143,8 @@ static inline bool is_huge_zero_pmd(pmd_t pmd)
struct page *get_huge_zero_page(void);
void put_huge_zero_page(void);
+#define mk_huge_pmd(page, prot) pmd_mkhuge(mk_pmd(page, prot))
+
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
#define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
#define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; })