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From: Johannes Thumshirn <jth@kernel.org>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH v4 02/22] drbd: use __bio_add_page to add page to bio
Date: Thu, 20 Apr 2023 12:04:41 +0200	[thread overview]
Message-ID: <20230420100501.32981-3-jth@kernel.org> (raw)
In-Reply-To: <20230420100501.32981-1-jth@kernel.org>

From: Johannes Thumshirn <johannes.thumshirn@wdc.com>

The drbd code only adds a single page to a newly created bio. So use
__bio_add_page() to add the page which is guaranteed to succeed in this
case.

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

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/block/drbd/drbd_bitmap.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 289876ffbc31..050154eb963d 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1043,9 +1043,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
 	bio = bio_alloc_bioset(device->ldev->md_bdev, 1, op, GFP_NOIO,
 			&drbd_md_io_bio_set);
 	bio->bi_iter.bi_sector = on_disk_sector;
-	/* bio_add_page of a single page to an empty bio will always succeed,
-	 * according to api.  Do we want to assert that? */
-	bio_add_page(bio, page, len, 0);
+	__bio_add_page(bio, page, len, 0);
 	bio->bi_private = ctx;
 	bio->bi_end_io = drbd_bm_endio;
 
-- 
2.39.2


  parent reply	other threads:[~2023-04-20 10:04 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-20 10:04 [Cluster-devel] [PATCH v4 00/22] bio: check return values of bio_add_page Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 01/22] swap: use __bio_add_page to add page to bio Johannes Thumshirn
2023-04-20 10:04 ` Johannes Thumshirn [this message]
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 03/22] dm: dm-zoned: use __bio_add_page for adding single metadata page Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 04/22] fs: buffer: use __bio_add_page to add single page to bio Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 05/22] md: use __bio_add_page to add single page Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 06/22] md: raid5-log: " Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 07/22] md: raid5: use __bio_add_page to add single page to new bio Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 08/22] btrfs: repair: use __bio_add_page for adding single page Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 09/22] btrfs: raid56: use __bio_add_page to add " Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 10/22] jfs: logmgr: use __bio_add_page to add single page to bio Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 11/22] gfs2: use __bio_add_page for adding " Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 12/22] zonefs: " Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 13/22] zram: " Johannes Thumshirn
2023-04-21  6:57   ` Sergey Senozhatsky
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 14/22] floppy: " Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 15/22] md: check for failure when adding pages in alloc_behind_master_bio Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 16/22] md: raid1: use __bio_add_page for adding single page to bio Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 17/22] md: raid1: check if adding pages to resync bio fails Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 18/22] dm-crypt: check if adding pages to clone " Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 19/22] block: mark bio_add_page as __must_check Johannes Thumshirn
2023-04-20 10:04 ` [Cluster-devel] [PATCH v4 20/22] block: add __bio_add_folio Johannes Thumshirn
2023-04-20 10:05 ` [Cluster-devel] [PATCH v4 21/22] fs: iomap: use __bio_add_folio where possible Johannes Thumshirn
2023-04-20 10:05 ` [Cluster-devel] [PATCH v4 22/22] block: mark bio_add_folio as __must_check Johannes Thumshirn

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