From: "Matthew Wilcox (Oracle)" <willy@infradead.org> mainline inclusion from mainline-v6.8-rc1 commit ee1b1d9b46f206ffdef5ebe4086d925a5c43805b category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC3A3N Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- Saves a call to compound_head(). Link: https://lkml.kernel.org/r/20231213215842.671461-6-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Conflicts: mm/page_io.c [Context conflict: patch "mm: ignore data-race in __swap_writepage" is merged first.] Signed-off-by: Tong Tiangen <tongtiangen@huawei.com> --- mm/page_io.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 21db4265f1e0..38a995474067 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -348,18 +348,17 @@ static void swap_writepage_bdev_sync(struct folio *folio, __end_swap_bio_write(&bio); } -static void swap_writepage_bdev_async(struct page *page, +static void swap_writepage_bdev_async(struct folio *folio, struct writeback_control *wbc, struct swap_info_struct *sis) { struct bio *bio; - struct folio *folio = page_folio(page); bio = bio_alloc(sis->bdev, 1, REQ_OP_WRITE | REQ_SWAP | wbc_to_write_flags(wbc), GFP_NOIO); - bio->bi_iter.bi_sector = swap_page_sector(page); + bio->bi_iter.bi_sector = swap_page_sector(&folio->page); bio->bi_end_io = end_swap_bio_write; - __bio_add_page(bio, page, thp_size(page), 0); + bio_add_folio_nofail(bio, folio, folio_size(folio), 0); bio_associate_blkg_from_page(bio, folio); count_swpout_vm_event(folio); @@ -388,7 +387,7 @@ void __swap_writepage(struct folio *folio, struct writeback_control *wbc) else if (data_race(sis->flags & SWP_SYNCHRONOUS_IO)) swap_writepage_bdev_sync(folio, wbc, sis); else - swap_writepage_bdev_async(&folio->page, wbc, sis); + swap_writepage_bdev_async(folio, wbc, sis); } void swap_write_unplug(struct swap_iocb *sio) -- 2.25.1