Messages in this thread | | | Date | Mon, 6 Mar 2023 10:05:57 +0800 | Subject | Re: [PATCH 2/2] mm/damon/paddr: fix folio_nr_pages() after folio_put() in damon_pa_mark_accessed_or_deactivate() | From | Kefeng Wang <> |
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On 2023/3/5 3:39, SeongJae Park wrote: > damon_pa_mark_accessed_or_deactivate() is accessing a folio via > folio_nr_pages() after folio_put() for the folio has invoked. Fix it. >
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> Fixes: f70da5ee8fe1 ("mm/damon: convert damon_pa_mark_accessed_or_deactivate() to use folios") > Cc: <stable@vger.kernel.org> # 6.3.x > Signed-off-by: SeongJae Park <sj@kernel.org> > --- > mm/damon/paddr.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c > index 10f159b315ea..0db724aec5cb 100644 > --- a/mm/damon/paddr.c > +++ b/mm/damon/paddr.c > @@ -277,8 +277,8 @@ 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; > }
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