All of lore.kernel.org
 help / color / mirror / Atom feed
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>, Hannes Reinecke <hare@suse.de>,
	Chaitanya Kulkarni <kch@nvidia.com>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Ming Lei <ming.lei@redhat.com>,
	linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, dm-devel@redhat.com,
	Song Liu <song@kernel.org>,
	linux-raid@vger.kernel.org, Mike Snitzer <snitzer@kernel.org>,
	Matthew Wilcox <willy@infradead.org>,
	Dave Kleikamp <shaggy@kernel.org>,
	jfs-discussion@lists.sourceforge.net, cluster-devel@redhat.com,
	Bob Peterson <rpeterso@redhat.com>,
	Andreas Gruenbacher <agruenba@redhat.com>,
	David Sterba <dsterba@suse.com>,
	linux-btrfs@vger.kernel.org,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>
Subject: [PATCH 14/19] floppy: use __bio_add_page for adding single page to bio
Date: Wed, 29 Mar 2023 10:06:00 -0700	[thread overview]
Message-ID: <aeff063d2f56092df8cae0a6e9c1a8e771994407.1680108414.git.johannes.thumshirn@wdc.com> (raw)
In-Reply-To: <cover.1680108414.git.johannes.thumshirn@wdc.com>

The floppy 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.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 drivers/block/floppy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 487840e3564d..6f46a30f7c36 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4147,7 +4147,7 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive)
 	cbdata.drive = drive;
 
 	bio_init(&bio, bdev, &bio_vec, 1, REQ_OP_READ);
-	bio_add_page(&bio, page, block_size(bdev), 0);
+	__bio_add_page(&bio, page, block_size(bdev), 0);
 
 	bio.bi_iter.bi_sector = 0;
 	bio.bi_flags |= (1 << BIO_QUIET);
-- 
2.39.2


WARNING: multiple messages have this Message-ID (diff)
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-raid@vger.kernel.org,
	Damien Le Moal <damien.lemoal@wdc.com>,
	cluster-devel@redhat.com, Chaitanya Kulkarni <kch@nvidia.com>,
	Andreas Gruenbacher <agruenba@redhat.com>,
	Song Liu <song@kernel.org>, Dave Kleikamp <shaggy@kernel.org>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>,
	Mike Snitzer <snitzer@kernel.org>,
	jfs-discussion@lists.sourceforge.net,
	Matthew Wilcox <willy@infradead.org>,
	Ming Lei <ming.lei@redhat.com>,
	linux-block@vger.kernel.org, linux-mm@kvack.org,
	dm-devel@redhat.com, David Sterba <dsterba@suse.com>,
	linux-fsdevel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	linux-btrfs@vger.kernel.org, Bob Peterson <rpeterso@redhat.com>
Subject: [dm-devel] [PATCH 14/19] floppy: use __bio_add_page for adding single page to bio
Date: Wed, 29 Mar 2023 10:06:00 -0700	[thread overview]
Message-ID: <aeff063d2f56092df8cae0a6e9c1a8e771994407.1680108414.git.johannes.thumshirn@wdc.com> (raw)
In-Reply-To: <cover.1680108414.git.johannes.thumshirn@wdc.com>

The floppy 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.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 drivers/block/floppy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 487840e3564d..6f46a30f7c36 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4147,7 +4147,7 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive)
 	cbdata.drive = drive;
 
 	bio_init(&bio, bdev, &bio_vec, 1, REQ_OP_READ);
-	bio_add_page(&bio, page, block_size(bdev), 0);
+	__bio_add_page(&bio, page, block_size(bdev), 0);
 
 	bio.bi_iter.bi_sector = 0;
 	bio.bi_flags |= (1 << BIO_QUIET);
-- 
2.39.2

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel


WARNING: multiple messages have this Message-ID (diff)
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH 14/19] floppy: use __bio_add_page for adding single page to bio
Date: Wed, 29 Mar 2023 10:06:00 -0700	[thread overview]
Message-ID: <aeff063d2f56092df8cae0a6e9c1a8e771994407.1680108414.git.johannes.thumshirn@wdc.com> (raw)
In-Reply-To: <cover.1680108414.git.johannes.thumshirn@wdc.com>

The floppy 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.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 drivers/block/floppy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 487840e3564d..6f46a30f7c36 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4147,7 +4147,7 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive)
 	cbdata.drive = drive;
 
 	bio_init(&bio, bdev, &bio_vec, 1, REQ_OP_READ);
-	bio_add_page(&bio, page, block_size(bdev), 0);
+	__bio_add_page(&bio, page, block_size(bdev), 0);
 
 	bio.bi_iter.bi_sector = 0;
 	bio.bi_flags |= (1 << BIO_QUIET);
-- 
2.39.2


  parent reply	other threads:[~2023-03-29 17:08 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-29 17:05 [PATCH 00/19] bio: check return values of bio_add_page Johannes Thumshirn
2023-03-29 17:05 ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05 ` [dm-devel] " Johannes Thumshirn
2023-03-29 17:05 ` [PATCH 01/19] swap: use __bio_add_page to add page to bio Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:29   ` Damien Le Moal
2023-03-29 23:29     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:29     ` [dm-devel] " Damien Le Moal
     [not found]   ` <CGME20230331122046eucas1p247e0cd2d06229a6b7cae9cb26ea43d5b@eucas1p2.samsung.com>
2023-03-31 12:12     ` Pankaj Raghav
2023-03-31 12:12       ` [Cluster-devel] " Pankaj Raghav
2023-03-31 12:12       ` [dm-devel] " Pankaj Raghav
2023-03-29 17:05 ` [PATCH 02/19] drbd: " Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 17:48   ` Matthew Wilcox
2023-03-29 17:48     ` [Cluster-devel] " Matthew Wilcox
2023-03-29 17:48     ` [dm-devel] " Matthew Wilcox
2023-03-29 23:29   ` Damien Le Moal
2023-03-29 23:29     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:29     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 03/19] dm: dm-zoned: use __bio_add_page for adding single metadata page Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:30   ` Damien Le Moal
2023-03-29 23:30     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:30     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 04/19] fs: buffer: use __bio_add_page to add single page to bio Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:31   ` Damien Le Moal
2023-03-29 23:31     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:31     ` [dm-devel] " Damien Le Moal
     [not found]   ` <CGME20230331122235eucas1p2208286ce210d9b01ea36a26bd3897b72@eucas1p2.samsung.com>
2023-03-31 12:14     ` Pankaj Raghav
2023-03-31 12:14       ` [Cluster-devel] " Pankaj Raghav
2023-03-31 12:14       ` [dm-devel] " Pankaj Raghav
2023-03-29 17:05 ` [PATCH 05/19] md: use __bio_add_page to add single page Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:31   ` Damien Le Moal
2023-03-29 23:31     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:31     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 06/19] md: raid5-log: " Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:32   ` Damien Le Moal
2023-03-29 23:32     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:32     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 07/19] md: raid5: use __bio_add_page to add single page to new bio Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:32   ` Damien Le Moal
2023-03-29 23:32     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:32     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 08/19] btrfs: repair: use __bio_add_page for adding single page Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:33   ` Damien Le Moal
2023-03-29 23:33     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:33     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 09/19] btrfs: raid56: use __bio_add_page to add " Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:33   ` Damien Le Moal
2023-03-29 23:33     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:33     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 10/19] jfs: logmgr: use __bio_add_page to add single page to bio Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:34   ` Damien Le Moal
2023-03-29 23:34     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:34     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 11/19] gfs: use __bio_add_page for adding " Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:34   ` Damien Le Moal
2023-03-29 23:34     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:34     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 12/19] zonefs: " Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:35   ` Damien Le Moal
2023-03-29 23:35     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:35     ` [dm-devel] " Damien Le Moal
2023-03-29 17:05 ` [PATCH 13/19] zram: " Johannes Thumshirn
2023-03-29 17:05   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:05   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:36   ` Damien Le Moal
2023-03-29 23:36     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:36     ` [dm-devel] " Damien Le Moal
     [not found]   ` <CGME20230331122828eucas1p18e0bbbda45a6955f59fc82b29f42a8bb@eucas1p1.samsung.com>
2023-03-31 12:20     ` Pankaj Raghav
2023-03-31 12:20       ` [Cluster-devel] " Pankaj Raghav
2023-03-31 12:20       ` [dm-devel] " Pankaj Raghav
2023-03-29 17:06 ` Johannes Thumshirn [this message]
2023-03-29 17:06   ` [Cluster-devel] [PATCH 14/19] floppy: " Johannes Thumshirn
2023-03-29 17:06   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:36   ` Damien Le Moal
2023-03-29 23:36     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:36     ` [dm-devel] " Damien Le Moal
2023-03-29 17:06 ` [PATCH 15/19] md: check for failure when adding pages in alloc_behind_master_bio Johannes Thumshirn
2023-03-29 17:06   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:06   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:38   ` Damien Le Moal
2023-03-29 23:38     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:38     ` [dm-devel] " Damien Le Moal
2023-03-29 17:06 ` [PATCH 16/19] md: raid1: use __bio_add_page for adding single page to bio Johannes Thumshirn
2023-03-29 17:06   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:06   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:38   ` Damien Le Moal
2023-03-29 23:38     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:38     ` [dm-devel] " Damien Le Moal
2023-03-29 17:06 ` [PATCH 17/19] md: raid1: check if adding pages to resync bio fails Johannes Thumshirn
2023-03-29 17:06   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:06   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:44   ` Damien Le Moal
2023-03-29 23:44     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:44     ` [dm-devel] " Damien Le Moal
2023-03-30 10:38     ` Johannes Thumshirn
2023-03-30 10:38       ` [Cluster-devel] " Johannes Thumshirn
2023-03-30 10:38       ` [dm-devel] " Johannes Thumshirn
2023-03-29 17:06 ` [PATCH 18/19] dm-crypt: check if adding pages to clone " Johannes Thumshirn
2023-03-29 17:06   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:06   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:49   ` Damien Le Moal
2023-03-29 23:49     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:49     ` [dm-devel] " Damien Le Moal
2023-03-30  0:17     ` Yang Shi
2023-03-30  0:17       ` [Cluster-devel] " Yang Shi
2023-03-30  0:17       ` [dm-devel] " Yang Shi
2023-03-30  0:24       ` Damien Le Moal
2023-03-30  0:24         ` [Cluster-devel] " Damien Le Moal
2023-03-30  0:24         ` [dm-devel] " Damien Le Moal
2023-03-30 22:29         ` Yang Shi
2023-03-30 22:29           ` [Cluster-devel] " Yang Shi
2023-03-30 22:29           ` [dm-devel] " Yang Shi
2023-03-29 17:06 ` [PATCH 19/19] block: mark bio_add_page as __must_check Johannes Thumshirn
2023-03-29 17:06   ` [Cluster-devel] " Johannes Thumshirn
2023-03-29 17:06   ` [dm-devel] " Johannes Thumshirn
2023-03-29 23:58   ` Damien Le Moal
2023-03-29 23:58     ` [Cluster-devel] " Damien Le Moal
2023-03-29 23:58     ` [dm-devel] " Damien Le Moal

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=aeff063d2f56092df8cae0a6e9c1a8e771994407.1680108414.git.johannes.thumshirn@wdc.com \
    --to=johannes.thumshirn@wdc.com \
    --cc=agruenba@redhat.com \
    --cc=axboe@kernel.dk \
    --cc=cluster-devel@redhat.com \
    --cc=damien.lemoal@wdc.com \
    --cc=dm-devel@redhat.com \
    --cc=dsterba@suse.com \
    --cc=hare@suse.de \
    --cc=hch@lst.de \
    --cc=jfs-discussion@lists.sourceforge.net \
    --cc=kch@nvidia.com \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-raid@vger.kernel.org \
    --cc=ming.lei@redhat.com \
    --cc=rpeterso@redhat.com \
    --cc=shaggy@kernel.org \
    --cc=snitzer@kernel.org \
    --cc=song@kernel.org \
    --cc=willy@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.