[PATCH v7 14/20] md: raid1: use __bio_add_page for adding single page to bio

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The sync request code uses bio_add_page() to add a page to a newly created bio.
bio_add_page() can fail, but the return value is never checked.

Use __bio_add_page() as adding a single page to a newly created bio is
guaranteed to succeed.

This brings us a step closer to marking bio_add_page() as __must_check.

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>
Acked-by: Song Liu <song@xxxxxxxxxx>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
---
 drivers/md/raid1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8283ef177f6c..ff89839455ec 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2917,7 +2917,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
 				 * won't fail because the vec table is big
 				 * enough to hold all these pages
 				 */
-				bio_add_page(bio, page, len, 0);
+				__bio_add_page(bio, page, len, 0);
 			}
 		}
 		nr_sectors += len>>9;
-- 
2.40.1




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