[PATCH 08/12] fs: export fs_holder_ops

Christoph Hellwig
2023-08-02T15:43:32Z

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