diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-02-29 15:29:45 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-06 13:04:18 -0800 |
| commit | f1cce6f7fa302e2ea996de33eeeeb3a70d93a3e7 (patch) | |
| tree | 1a3ee4d4f15faa9a3be2d83f7e48573eb0484cf2 /mm | |
| parent | ac96cc4d1ceda01d08deda1e45b9f1b55b0624d2 (diff) | |
mm/mempolicy: use a folio in do_mbind()
We actually add folios to the pagelist already, but then work with them as
pages. Removes a call to compound_head() in PageKsm() and removes a
reference to page->index.
Link: https://lkml.kernel.org/r/20240229153015.1996829-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Gregory Price <gregory.price@memverge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mempolicy.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 56f9a6ed939a..0fe77738d971 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1356,29 +1356,30 @@ static long do_mbind(unsigned long start, unsigned long len, */ if (new->mode == MPOL_INTERLEAVE || new->mode == MPOL_WEIGHTED_INTERLEAVE) { - struct page *page; + struct folio *folio; unsigned int order; unsigned long addr = -EFAULT; - list_for_each_entry(page, &pagelist, lru) { - if (!PageKsm(page)) + list_for_each_entry(folio, &pagelist, lru) { + if (!folio_test_ksm(folio)) break; } - if (!list_entry_is_head(page, &pagelist, lru)) { + if (!list_entry_is_head(folio, &pagelist, lru)) { vma_iter_init(&vmi, mm, start); for_each_vma_range(vmi, vma, end) { - addr = page_address_in_vma(page, vma); + addr = page_address_in_vma( + folio_page(folio, 0), vma); if (addr != -EFAULT) break; } } if (addr != -EFAULT) { - order = compound_order(page); + order = folio_order(folio); /* We already know the pol, but not the ilx */ mpol_cond_put(get_vma_policy(vma, addr, order, &mmpol.ilx)); /* Set base from which to increment by index */ - mmpol.ilx -= page->index >> order; + mmpol.ilx -= folio->index >> order; } } } |