diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-09-02 20:46:30 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:02:50 -0700 |
| commit | 000085b9af9f3ca13dd672a753f815ac0cb45d0a (patch) | |
| tree | 05c277477c76e8f9662339f1cfef8790237eec6e /mm/swapfile.c | |
| parent | 923e2f0e7c30db5c1ee5d680050ab781e6c114fb (diff) | |
swapfile: convert try_to_unuse() to use a folio
Saves five calls to compound_head().
Link: https://lkml.kernel.org/r/20220902194653.1739778-35-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/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index aafe739dc2a6..23cdbe8e47cf 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2032,7 +2032,7 @@ static int try_to_unuse(unsigned int type) struct list_head *p; int retval = 0; struct swap_info_struct *si = swap_info[type]; - struct page *page; + struct folio *folio; swp_entry_t entry; unsigned int i; @@ -2082,21 +2082,21 @@ retry: (i = find_next_to_unuse(si, i)) != 0) { entry = swp_entry(type, i); - page = find_get_page(swap_address_space(entry), i); - if (!page) + folio = filemap_get_folio(swap_address_space(entry), i); + if (!folio) continue; /* - * It is conceivable that a racing task removed this page from - * swap cache just before we acquired the page lock. The page + * It is conceivable that a racing task removed this folio from + * swap cache just before we acquired the page lock. The folio * might even be back in swap cache on another swap area. But - * that is okay, try_to_free_swap() only removes stale pages. + * that is okay, folio_free_swap() only removes stale folios. */ - lock_page(page); - wait_on_page_writeback(page); - try_to_free_swap(page); - unlock_page(page); - put_page(page); + folio_lock(folio); + folio_wait_writeback(folio); + folio_free_swap(folio); + folio_unlock(folio); + folio_put(folio); } /* |