Commit 36a3b14b authored Sep 02, 2022 by Matthew Wilcox (Oracle) Committed by Andrew Morton Sep 11, 2022

vmscan: check folio_test_private(), not folio_get_private()

These two predicates are the same for file pages, but are not the same for
anonymous pages.

Link: https://lkml.kernel.org/r/20220902192639.1737108-3-willy@infradead.org


Fixes: 07f67a8d ("mm/vmscan: convert shrink_active_list() to use a folio")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

parent b9eb7776

mm/vmscan.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2550,8 +2550,8 @@ static void shrink_active_list(unsigned long nr_to_scan,
		}

		if (unlikely(buffer_heads_over_limit)) {
		if (folio_get_private(folio) && folio_trylock(folio)) {
		if (folio_get_private(folio))
		if (folio_test_private(folio) && folio_trylock(folio)) {
		if (folio_test_private(folio))
		filemap_release_folio(folio, 0);
		folio_unlock(folio);
		}