diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2016-01-15 16:54:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-15 17:56:32 -0800 |
| commit | b20ce5e03b936be077463015661dcf52be274e5b (patch) | |
| tree | 1004a054c0263a471ef79a7cd84fea904a71b655 /include/linux/huge_mm.h | |
| parent | e90309c9f7722db4ff5bce3b9e6e04d1460f2553 (diff) | |
| download | op-kernel-dev-b20ce5e03b936be077463015661dcf52be274e5b.zip op-kernel-dev-b20ce5e03b936be077463015661dcf52be274e5b.tar.gz | |
mm: prepare page_referenced() and page_idle to new THP refcounting
Both page_referenced() and page_idle_clear_pte_refs_one() assume that
THP can only be mapped with PMD, so there's no reason to look on PTEs
for PageTransHuge() pages. That's no true anymore: THP can be mapped
with PTEs too.
The patch removes PageTransHuge() test from the functions and opencode
page table check.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Minchan Kim <minchan@kernel.org>
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.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 7aec5ee..72cd942 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -48,11 +48,6 @@ enum transparent_hugepage_flag { #endif }; -extern pmd_t *page_check_address_pmd(struct page *page, - struct mm_struct *mm, - unsigned long address, - spinlock_t **ptl); - #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT) #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER) |
