diff options
| author | Baolin Wang <[email protected]> | 2024-08-12 15:42:08 +0800 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-09-03 21:15:35 -0700 |
| commit | 872339c31f3b2dd466320a5bed54abeccf0db47b (patch) | |
| tree | 282babad94e2c1c8ed0e824720ee83ad79be3083 | |
| parent | 736f0e03564729a5ba609c2c4fcb37ff1e92ede4 (diff) | |
mm: shmem: drop folio reference count using 'nr_pages' in shmem_delete_from_page_cache()
To support large folio swapin/swapout for shmem in the following patches,
drop the folio's reference count by the number of pages contained in the
folio when a shmem folio is deleted from shmem pagecache after adding into
swap cache.
Link: https://lkml.kernel.org/r/b371eadb27f42fc51261c51008fbb9a334985b4c.1723434324.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <[email protected]>
Cc: Barry Song <[email protected]>
Cc: Chris Li <[email protected]>
Cc: Daniel Gomez <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: "Huang, Ying" <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Kefeng Wang <[email protected]>
Cc: Lance Yang <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Pankaj Raghav <[email protected]>
Cc: Ryan Roberts <[email protected]>
Cc: Yang Shi <[email protected]>
Cc: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | mm/shmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index e63393ced001..598d003b7a89 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -851,7 +851,7 @@ static void shmem_delete_from_page_cache(struct folio *folio, void *radswap) __lruvec_stat_mod_folio(folio, NR_FILE_PAGES, -nr); __lruvec_stat_mod_folio(folio, NR_SHMEM, -nr); xa_unlock_irq(&mapping->i_pages); - folio_put(folio); + folio_put_refs(folio, nr); BUG_ON(error); } |