From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, linux-nilfs@vger.kernel.org,
Jan Kara <jack@suse.cz>,
linux-fsdevel@vger.kernel.org,
"Darrick J. Wong" <djwong@kernel.org>,
Josef Bacik <josef@toxicpanda.com>,
linux-f2fs-devel@lists.sourceforge.net,
linux-xfs@vger.kernel.org, Chris Mason <clm@fb.com>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Jaegeuk Kim <jaegeuk@kernel.org>, David Sterba <dsterba@suse.com>,
Theodore Ts'o <tytso@mit.edu>,
linux-ext4@vger.kernel.org,
Ryusuke Konishi <konishi.ryusuke@gmail.com>,
linux-btrfs@vger.kernel.org
Subject: [PATCH 08/12] fs: export fs_holder_ops
Date: Wed, 2 Aug 2023 17:41:27 +0200 [thread overview]
Message-ID: <20230802154131.2221419-9-hch@lst.de> (raw)
In-Reply-To: <20230802154131.2221419-1-hch@lst.de>
Export fs_holder_ops so that file systems that open additional block
devices can use it as well.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/super.c | 3 ++-
include/linux/blkdev.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/super.c b/fs/super.c
index 0cda4af0a7e16c..dac05f96ab9ac8 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1244,9 +1244,10 @@ static void fs_mark_dead(struct block_device *bdev)
up_read(&sb->s_umount);
}
-static const struct blk_holder_ops fs_holder_ops = {
+const struct blk_holder_ops fs_holder_ops = {
.mark_dead = fs_mark_dead,
};
+EXPORT_SYMBOL_GPL(fs_holder_ops);
static int set_bdev_super(struct super_block *s, void *data)
{
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index ed44a997f629f5..83262702eea71a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1464,6 +1464,8 @@ struct blk_holder_ops {
void (*mark_dead)(struct block_device *bdev);
};
+extern const struct blk_holder_ops fs_holder_ops;
+
/*
* Return the correct open flags for blkdev_get_by_* for super block flags
* as stored in sb->s_flags.
--
2.39.2
next prev parent reply other threads:[~2023-08-02 15:41 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-02 15:41 more blkdev_get and holder work Christoph Hellwig
[not found] ` <20230802154131.2221419-1-hch-jcswGhMUV9g@public.gmane.org>
2023-08-02 15:41 ` [PATCH 01/12] fs: export setup_bdev_super Christoph Hellwig
2023-08-03 18:04 ` Christian Brauner
2023-09-04 18:11 ` [f2fs-dev] " patchwork-bot+f2fs
2023-08-02 15:41 ` [PATCH 02/12] nilfs2: use setup_bdev_super to de-duplicate the mount code Christoph Hellwig
[not found] ` <20230802154131.2221419-3-hch-jcswGhMUV9g@public.gmane.org>
2023-08-03 11:46 ` Jan Kara
2023-08-04 2:01 ` Ryusuke Konishi
2023-08-10 11:05 ` Jan Kara
2023-08-10 16:39 ` Ryusuke Konishi
[not found] ` <CAKFNMon_3A7dC+k1q_RjEnoXXNtxBJAUQud_FD4s4VrHZdCVzg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2023-08-10 18:14 ` Jan Kara
2023-08-04 5:04 ` Ryusuke Konishi
2023-08-02 15:41 ` [PATCH 03/12] btrfs: always open the device read-only in btrfs_scan_one_device Christoph Hellwig
2023-08-02 15:41 ` [PATCH 04/12] btrfs: open block devices after superblock creation Christoph Hellwig
2023-08-02 15:41 ` [PATCH 05/12] ext4: make the IS_EXT2_SB/IS_EXT3_SB checks more robust Christoph Hellwig
[not found] ` <20230802154131.2221419-6-hch-jcswGhMUV9g@public.gmane.org>
2023-08-03 11:21 ` Jan Kara
2023-08-03 18:10 ` Christian Brauner
2023-08-04 20:34 ` Theodore Ts'o
2023-08-02 15:41 ` [PATCH 06/12] fs: use the super_block as holder when mounting file systems Christoph Hellwig
[not found] ` <20230802154131.2221419-7-hch-jcswGhMUV9g@public.gmane.org>
2023-08-03 11:51 ` Jan Kara
2023-08-03 13:33 ` Jan Kara
2023-08-05 8:36 ` Christoph Hellwig
2023-08-03 18:11 ` Christian Brauner
2023-08-02 15:41 ` [PATCH 07/12] fs: stop using get_super in fs_mark_dead Christoph Hellwig
2023-08-03 13:12 ` Jan Kara
2023-08-03 18:15 ` Christian Brauner
2023-08-02 15:41 ` Christoph Hellwig [this message]
2023-08-03 13:16 ` [PATCH 08/12] fs: export fs_holder_ops Jan Kara
2023-08-03 18:15 ` Christian Brauner
2023-08-02 15:41 ` [PATCH 09/12] ext4: drop s_umount over opening the log device Christoph Hellwig
2023-08-03 13:25 ` Jan Kara
[not found] ` <20230802154131.2221419-10-hch-jcswGhMUV9g@public.gmane.org>
2023-08-03 18:16 ` Christian Brauner
2023-08-04 20:34 ` Theodore Ts'o
2023-08-02 15:41 ` [PATCH 10/12] ext4: use fs_holder_ops for " Christoph Hellwig
2023-08-03 13:26 ` Jan Kara
2023-08-02 15:41 ` [PATCH 11/12] xfs: drop s_umount over opening the log and RT devices Christoph Hellwig
[not found] ` <20230802154131.2221419-12-hch-jcswGhMUV9g@public.gmane.org>
2023-08-02 16:32 ` Darrick J. Wong
2023-08-05 8:32 ` Christoph Hellwig
2023-08-05 10:39 ` Christian Brauner
2023-08-05 16:19 ` Darrick J. Wong
2023-08-05 17:13 ` Christian Brauner
2023-08-02 15:41 ` [PATCH 12/12] xfs use fs_holder_ops for " Christoph Hellwig
2023-08-02 16:33 ` Darrick J. Wong
2023-08-14 10:58 ` Carlos Maiolino
2023-08-14 11:05 ` Carlos Maiolino
2023-08-04 15:39 ` more blkdev_get and holder work Christian Brauner
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=20230802154131.2221419-9-hch@lst.de \
--to=hch@lst.de \
--cc=adilger.kernel@dilger.ca \
--cc=axboe@kernel.dk \
--cc=brauner@kernel.org \
--cc=clm@fb.com \
--cc=djwong@kernel.org \
--cc=dsterba@suse.com \
--cc=jack@suse.cz \
--cc=jaegeuk@kernel.org \
--cc=josef@toxicpanda.com \
--cc=konishi.ryusuke@gmail.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-nilfs@vger.kernel.org \
--cc=linux-xfs@vger.kernel.org \
--cc=tytso@mit.edu \
--cc=viro@zeniv.linux.org.uk \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).