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| author | SeongJae Park <sj@kernel.org> | 2023-03-04 19:39:49 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-03-07 17:04:55 -0800 |
| commit | dd52a61da0dd8bab8b90e808f0e5ad507b61ad6d (patch) | |
| tree | 7b0321a912f1a9766bc7e6090bedc458d5df5ba9 /mm/damon | |
| parent | 751688b8be9049f558f86982966ecaa61a9cbedf (diff) | |
| download | lwn-dd52a61da0dd8bab8b90e808f0e5ad507b61ad6d.tar.gz lwn-dd52a61da0dd8bab8b90e808f0e5ad507b61ad6d.zip | |
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: f70da5ee8fe1 ("mm/damon: convert damon_pa_mark_accessed_or_deactivate() to use folios")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon')
| -rw-r--r-- | mm/damon/paddr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 49b267b03305..dd9c33fbe805 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -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; } |