Commit dd52a61d authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

mm/damon/paddr: fix folio_nr_pages() after folio_put() in damon_pa_mark_accessed_or_deactivate() 

damon_pa_mark_accessed_or_deactivate() is accessing a folio via
folio_nr_pages() after folio_put() for the folio has invoked.  Fix it.

Link: https://lkml.kernel.org/r/20230304193949.296391-3-sj@kernel.org


Fixes: f70da5ee ("mm/damon: convert damon_pa_mark_accessed_or_deactivate() to use folios")
Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Reviewed-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 751688b8

mm/damon/paddr.c

+1 −1
Original line number Diff line number Diff line
@@ -280,8 +280,8 @@ static inline unsigned long damon_pa_mark_accessed_or_deactivate( 
			folio_mark_accessed(folio);

		else

			folio_deactivate(folio);

		folio_put(folio);

		applied += folio_nr_pages(folio);

		folio_put(folio);

	}

	return applied * PAGE_SIZE;

}