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mm: remove use of folio list from folios_put()

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Instead of putting the interesting folios on a list, delete the
uninteresting one from the folio_batch.

Link: https://lkml.kernel.org/r/20240227174254.710559-7-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-02-27 17:42:40 +00:00 committed by Andrew Morton
parent 4882c80975
commit 7c33b8c422
1 changed files with 12 additions and 7 deletions
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19
mm/swap.c
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@ -961,12 +961,11 @@ void lru_cache_disable(void)
*/
void folios_put_refs(struct folio_batch *folios, unsigned int *refs)
{
int i;
LIST_HEAD(pages_to_free);
int i, j;
struct lruvec *lruvec = NULL;
unsigned long flags = 0;
for (i = 0; i < folios->nr; i++) {
for (i = 0, j = 0; i < folios->nr; i++) {
struct folio *folio = folios->folios[i];
unsigned int nr_refs = refs ? refs[i] : 1;
@ -1016,14 +1015,20 @@ void folios_put_refs(struct folio_batch *folios, unsigned int *refs)
count_vm_event(UNEVICTABLE_PGCLEARED);
}
list_add(&folio->lru, &pages_to_free);
if (j != i)
folios->folios[j] = folio;
j++;
}
if (lruvec)
unlock_page_lruvec_irqrestore(lruvec, flags);
if (!j) {
folio_batch_reinit(folios);
return;
}
mem_cgroup_uncharge_list(&pages_to_free);
free_unref_page_list(&pages_to_free);
folio_batch_reinit(folios);
folios->nr = j;
mem_cgroup_uncharge_folios(folios);
free_unref_folios(folios);
}
EXPORT_SYMBOL(folios_put_refs);