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vmscan: convert the activate_locked portion of shrink_page_list to folios

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This accounts the number of pages activated correctly for large folios.

Link: https://lkml.kernel.org/r/20220504182857.4013401-14-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-05-12 20:23:03 -07:00 committed by Andrew Morton
parent 5441d4902f
commit 246b648038
1 changed files with 9 additions and 8 deletions
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17
mm/vmscan.c
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@ -1946,15 +1946,16 @@ static unsigned int shrink_page_list(struct list_head *page_list,
}
activate_locked:
/* Not a candidate for swapping, so reclaim swap space. */
if (PageSwapCache(page) && (mem_cgroup_swap_full(page) ||
PageMlocked(page)))
try_to_free_swap(page);
VM_BUG_ON_PAGE(PageActive(page), page);
if (!PageMlocked(page)) {
int type = page_is_file_lru(page);
SetPageActive(page);
if (folio_test_swapcache(folio) &&
(mem_cgroup_swap_full(&folio->page) ||
folio_test_mlocked(folio)))
try_to_free_swap(&folio->page);
VM_BUG_ON_FOLIO(folio_test_active(folio), folio);
if (!folio_test_mlocked(folio)) {
int type = folio_is_file_lru(folio);
folio_set_active(folio);
stat->nr_activate[type] += nr_pages;
count_memcg_page_event(page, PGACTIVATE);
count_memcg_folio_events(folio, PGACTIVATE, nr_pages);
}
keep_locked:
unlock_page(page);