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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-02-27 17:42:50 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-04 17:01:26 -0800 |
| commit | 4907e80b76af004b6af42f0d4131e23ac73bc07c (patch) | |
| tree | ea0fd151d9ec4c662c27f660b8bba4c38ec6ecee /mm | |
| parent | f39ec4dcb9e9b03b2a280829b8c15e3ae607398c (diff) | |
| download | linux-4907e80b76af004b6af42f0d4131e23ac73bc07c.tar.gz | |
mm: convert free_pages_and_swap_cache() to use folios_put()
Process the pages in batch-sized quantities instead of all-at-once.
Link: https://lkml.kernel.org/r/20240227174254.710559-17-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/swap_state.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c index 2f540748f7c0cc..96b5c585f04792 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -15,6 +15,7 @@ #include <linux/swapops.h> #include <linux/init.h> #include <linux/pagemap.h> +#include <linux/pagevec.h> #include <linux/backing-dev.h> #include <linux/blkdev.h> #include <linux/migrate.h> @@ -310,21 +311,25 @@ void free_page_and_swap_cache(struct page *page) */ void free_pages_and_swap_cache(struct encoded_page **pages, int nr) { + struct folio_batch folios; + unsigned int refs[PAGEVEC_SIZE]; + lru_add_drain(); + folio_batch_init(&folios); for (int i = 0; i < nr; i++) { - struct page *page = encoded_page_ptr(pages[i]); + struct folio *folio = page_folio(encoded_page_ptr(pages[i])); - /* - * Skip over the "nr_pages" entry. It's sufficient to call - * free_swap_cache() only once per folio. - */ + free_swap_cache(&folio->page); + refs[folios.nr] = 1; if (unlikely(encoded_page_flags(pages[i]) & ENCODED_PAGE_BIT_NR_PAGES_NEXT)) - i++; + refs[folios.nr] = encoded_nr_pages(pages[++i]); - free_swap_cache(page); + if (folio_batch_add(&folios, folio) == 0) + folios_put_refs(&folios, refs); } - release_pages(pages, nr); + if (folios.nr) + folios_put_refs(&folios, refs); } static inline bool swap_use_vma_readahead(void) |