From e419cf3ebaee694a826ddcfb350f1b1ebaf1e599 Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Tue, 24 Oct 2023 15:01:16 +0200 Subject: [PATCH] blkdev: comment fs_holder_ops Add a comment to @fs_holder_ops that @holder must point to a superblock. Link: https://lore.kernel.org/r/20231024-vfs-super-freeze-v2-10-599c19f4faac@kernel.org Reviewed-by: Darrick J. Wong Reviewed-by: Jan Kara Reviewed-by: Christoph Hellwig Signed-off-by: Christian Brauner --- include/linux/blkdev.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 1bc776335ff89..abf71cce785c2 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1480,6 +1480,11 @@ struct blk_holder_ops { int (*thaw)(struct block_device *bdev); }; +/* + * 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; /* -- 2.39.2