diff options
| author | Rik van Riel <riel@redhat.com> | 2011-01-13 15:47:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:32:46 -0800 |
| commit | 2c888cfbc1b45508a44763d85ba2e8ac43faff5f (patch) | |
| tree | 9a7f2214e5d6a01d5724ae63d4d50cddeb2293ff /include/linux/huge_mm.h | |
| parent | 97562cd243298acf573620c764a1037bd545c9bc (diff) | |
| download | lwn-2c888cfbc1b45508a44763d85ba2e8ac43faff5f.tar.gz lwn-2c888cfbc1b45508a44763d85ba2e8ac43faff5f.zip | |
thp: fix anon memory statistics with transparent hugepages
Count each transparent hugepage as HPAGE_PMD_NR pages in the LRU
statistics, so the Active(anon) and Inactive(anon) statistics in
/proc/meminfo are correct.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.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.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 827595228734..9b48c24df260 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -117,11 +117,19 @@ static inline void vma_adjust_trans_huge(struct vm_area_struct *vma, return; __vma_adjust_trans_huge(vma, start, end, adjust_next); } +static inline int hpage_nr_pages(struct page *page) +{ + if (unlikely(PageTransHuge(page))) + return HPAGE_PMD_NR; + return 1; +} #else /* CONFIG_TRANSPARENT_HUGEPAGE */ #define HPAGE_PMD_SHIFT ({ BUG(); 0; }) #define HPAGE_PMD_MASK ({ BUG(); 0; }) #define HPAGE_PMD_SIZE ({ BUG(); 0; }) +#define hpage_nr_pages(x) 1 + #define transparent_hugepage_enabled(__vma) 0 #define transparent_hugepage_flags 0UL |