diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-09-02 20:46:35 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:02:51 -0700 |
| commit | aedd74d4397a2b1a4882215b6169b47d139c0319 (patch) | |
| tree | d7887769f5fc8416c970bd3c64994d8f9479dcfa /mm/swap_state.c | |
| parent | cb691e2f28bc63b1a872aa593dd542ee796e8364 (diff) | |
swap_state: convert free_swap_cache() to use a folio
Saves several calls to compound_head().
Link: https://lkml.kernel.org/r/20220902194653.1739778-40-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/swap_state.c')
| -rw-r--r-- | mm/swap_state.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c index 4af135a7b53c..438d0676c5be 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -272,16 +272,19 @@ void clear_shadow_from_swap_cache(int type, unsigned long begin, /* * If we are the only user, then try to free up the swap cache. * - * Its ok to check for PageSwapCache without the page lock + * Its ok to check the swapcache flag without the folio lock * here because we are going to recheck again inside - * try_to_free_swap() _with_ the lock. + * folio_free_swap() _with_ the lock. * - Marcelo */ void free_swap_cache(struct page *page) { - if (PageSwapCache(page) && !page_mapped(page) && trylock_page(page)) { - try_to_free_swap(page); - unlock_page(page); + struct folio *folio = page_folio(page); + + if (folio_test_swapcache(folio) && !folio_mapped(folio) && + folio_trylock(folio)) { + folio_free_swap(folio); + folio_unlock(folio); } } |