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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-08-15 03:30:33 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-15 05:56:56 +0300 |
| commit | af3bbc12df80e8c279b94c752b6edca29841f4f5 (patch) | |
| tree | 5e69277956e96fe4ccce71613db1f66dd13b1441 /mm/internal.h | |
| parent | 6ffbb45826f5d9ae09aa60cd88594b7816c96190 (diff) | |
| download | linux-af3bbc12df80e8c279b94c752b6edca29841f4f5.tar.xz | |
mm: add thp_size
This function returns the number of bytes in a THP. It is like
page_size(), but compiles to just PAGE_SIZE if CONFIG_TRANSPARENT_HUGEPAGE
is disabled.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Link: http://lkml.kernel.org/r/20200629151959.15779-5-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/internal.h b/mm/internal.h index d11a9a8d2135..912bb1a1c10e 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -396,7 +396,7 @@ vma_address(struct page *page, struct vm_area_struct *vma) unsigned long start, end; start = __vma_address(page, vma); - end = start + PAGE_SIZE * (hpage_nr_pages(page) - 1); + end = start + thp_size(page) - PAGE_SIZE; /* page should be within @vma mapping range */ VM_BUG_ON_VMA(end < vma->vm_start || start >= vma->vm_end, vma); |