Commit 6a8c0687 authored by ZhangPeng's avatar ZhangPeng Committed by Andrew Morton
Browse files

mm/page_io: use a folio in sio_read_complete() 

Saves one implicit call to compound_head().

Link: https://lkml.kernel.org/r/20230721034451.16412-7-zhangpeng362@huawei.com


Signed-off-by: default avatarZhangPeng <zhangpeng362@huawei.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent bc74b53f

mm/page_io.c

+5 −5
Original line number Diff line number Diff line
@@ -403,17 +403,17 @@ static void sio_read_complete(struct kiocb *iocb, long ret) 


	if (ret == sio->len) {

		for (p = 0; p < sio->pages; p++) {

			struct page *page = sio->bvec[p].bv_page;

			struct folio *folio = page_folio(sio->bvec[p].bv_page);



			SetPageUptodate(page);

			unlock_page(page);

			folio_mark_uptodate(folio);

			folio_unlock(folio);

		}

		count_vm_events(PSWPIN, sio->pages);

	} else {

		for (p = 0; p < sio->pages; p++) {

			struct page *page = sio->bvec[p].bv_page;

			struct folio *folio = page_folio(sio->bvec[p].bv_page);



			unlock_page(page);

			folio_unlock(folio);

		}

		pr_alert_ratelimited("Read-error on swap-device\n");

	}