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| author | Peter Xu <peterx@redhat.com> | 2021-11-05 13:36:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-06 13:30:33 -0700 |
| commit | 02399c88024f4b7e6c43b3d4aa39c75af0069e17 (patch) | |
| tree | 1045b0c021c2cfad34030505ceb2ccc0093281db /mm/shmem.c | |
| parent | 10c848c8b4805ff026018bfb2b3dedd90e7b0cea (diff) | |
| download | lwn-02399c88024f4b7e6c43b3d4aa39c75af0069e17.tar.gz lwn-02399c88024f4b7e6c43b3d4aa39c75af0069e17.zip | |
mm/smaps: use vma->vm_pgoff directly when counting partial swap
As it's trying to cover the whole vma anyways, use direct vm_pgoff value
and vma_pages() rather than linear_page_index.
Link: https://lkml.kernel.org/r/20210917164756.8586-3-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/shmem.c')
| -rw-r--r-- | mm/shmem.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index b5860f4a2738..7cd976b588ff 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -856,9 +856,8 @@ unsigned long shmem_swap_usage(struct vm_area_struct *vma) return swapped << PAGE_SHIFT; /* Here comes the more involved part */ - return shmem_partial_swap_usage(mapping, - linear_page_index(vma, vma->vm_start), - linear_page_index(vma, vma->vm_end)); + return shmem_partial_swap_usage(mapping, vma->vm_pgoff, + vma->vm_pgoff + vma_pages(vma)); } /* |