From: "Matthew Wilcox (Oracle)" <willy@infradead.org> mainline inclusion from mainline-v6.8-rc1 commit bfcd44d5f816b442feb27f59e9312ce38ac4b3cf 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 several calls to compound_head(). Link: https://lkml.kernel.org/r/20231213215842.671461-4-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 | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 0723ffe27aa7..84e5342cf78e 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -289,16 +289,16 @@ static void sio_write_complete(struct kiocb *iocb, long ret) mempool_free(sio, sio_pool); } -static void swap_writepage_fs(struct page *page, struct writeback_control *wbc) +static void swap_writepage_fs(struct folio *folio, struct writeback_control *wbc) { struct swap_iocb *sio = NULL; - struct swap_info_struct *sis = page_swap_info(page); + struct swap_info_struct *sis = swp_swap_info(folio->swap); struct file *swap_file = sis->swap_file; - loff_t pos = page_file_offset(page); + loff_t pos = folio_file_pos(folio); - count_swpout_vm_event(page_folio(page)); - set_page_writeback(page); - unlock_page(page); + count_swpout_vm_event(folio); + folio_start_writeback(folio); + folio_unlock(folio); if (wbc->swap_plug) sio = *wbc->swap_plug; if (sio) { @@ -316,8 +316,8 @@ static void swap_writepage_fs(struct page *page, struct writeback_control *wbc) sio->pages = 0; sio->len = 0; } - bvec_set_page(&sio->bvec[sio->pages], page, thp_size(page), 0); - sio->len += thp_size(page); + bvec_set_folio(&sio->bvec[sio->pages], folio, folio_size(folio), 0); + sio->len += folio_size(folio); sio->pages += 1; if (sio->pages == ARRAY_SIZE(sio->bvec) || !wbc->swap_plug) { swap_write_unplug(sio); @@ -380,7 +380,7 @@ void __swap_writepage(struct folio *folio, struct writeback_control *wbc) * is safe. */ if (data_race(sis->flags & SWP_FS_OPS)) - swap_writepage_fs(&folio->page, wbc); + swap_writepage_fs(folio, wbc); /* * ->flags can be updated non-atomicially (scan_swap_map_slots), * but that will never affect SWP_SYNCHRONOUS_IO, so the data_race -- 2.25.1