From: Christian Brauner <brauner@kernel.org>
To: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
Alexander Viro <viro@zeniv.linux.org.uk>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, Carlos Maiolino <cem@kernel.org>,
linux-xfs@vger.kernel.org, Chris Mason <clm@fb.com>,
David Sterba <dsterba@suse.com>,
linux-btrfs@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>,
linux-ext4@vger.kernel.org, Gao Xiang <xiang@kernel.org>,
linux-erofs@lists.ozlabs.org,
"Christian Brauner (Amutable)" <brauner@kernel.org>
Subject: [PATCH RFC v2 16/18] super: make fs_holder_ops private
Date: Tue, 16 Jun 2026 16:08:32 +0200 [thread overview]
Message-ID: <20260616-work-super-bdev_holder_global-v2-16-7df6b864028e@kernel.org> (raw)
In-Reply-To: <20260616-work-super-bdev_holder_global-v2-0-7df6b864028e@kernel.org>
Now that filesystems open and claim their block devices through
fs_bdev_file_open_by_{dev,path}(), nothing outside fs/super.c references
fs_holder_ops. Make it static and drop its declaration from blkdev.h.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
---
fs/super.c | 3 +--
include/linux/blkdev.h | 7 -------
2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/fs/super.c b/fs/super.c
index a83f58755cf8..2d0a07861bfc 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1624,13 +1624,12 @@ static int fs_bdev_thaw(struct block_device *bdev)
return error;
}
-const struct blk_holder_ops fs_holder_ops = {
+static const struct blk_holder_ops fs_holder_ops = {
.mark_dead = fs_bdev_mark_dead,
.sync = fs_bdev_sync,
.freeze = fs_bdev_freeze,
.thaw = fs_bdev_thaw,
};
-EXPORT_SYMBOL_GPL(fs_holder_ops);
static struct super_dev *super_dev_lookup(dev_t dev, struct super_block *sb)
{
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index cee548184a7b..45225b4f7193 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1772,13 +1772,6 @@ struct blk_holder_ops {
__releases(&bdev->bd_holder_lock);
};
-/*
- * For filesystems using @fs_holder_ops, the @holder argument passed to
- * helpers used to open and claim block devices via
- * bd_prepare_to_claim() must point to a superblock.
- */
-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.
--
2.47.3
next prev parent reply other threads:[~2026-06-16 14:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-16 14:08 [PATCH RFC v2 00/18] fs: support freeze/thaw/mark_dead/sync with shared devices Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 01/18] xfs: fix the error unwind in xfs_open_devices() Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 02/18] super: convert s_count to refcount_t s_passive Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 03/18] super: take lock after last reference count Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 04/18] fs, block: move blk_mode_t and fop_flags_t into <linux/types.h> Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 05/18] ext4: use anonymous devices for KUnit test superblocks Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 06/18] ocfs2: don't reset s_dev on dismount Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 07/18] fs: maintain a global device-to-superblock table Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 08/18] fs: add dedicated block device open helpers for filesystems Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 09/18] xfs: port to fs_bdev_file_open_by_path() Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 10/18] btrfs: open via dedicated fs bdev helpers Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 11/18] ext4: " Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 12/18] fs: look up superblocks via the device table in fs_holder_ops Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 13/18] fs: tolerate per-superblock freeze errors on shared devices Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 14/18] erofs: open via dedicated fs bdev helpers Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 15/18] f2fs: " Christian Brauner
2026-06-17 3:17 ` Chao Yu
2026-06-16 14:08 ` Christian Brauner [this message]
2026-06-16 14:08 ` [PATCH RFC v2 17/18] fs: look up the superblock via the device table in user_get_super() Christian Brauner
2026-06-16 14:08 ` [PATCH RFC v2 18/18] selftests/filesystems: add ustat() coverage Christian Brauner
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