[PATCH 04/45] fs: simplify freeze_bdev/thaw_bdev

[Chao Yu]

On 2020/11/24 21:27, Christoph Hellwig wrote:
> Store the frozen superblock in struct block_device to avoid the awkward
> interface that can return a sb only used a cookie, an ERR_PTR or NULL.
> 
> Signed-off-by: Christoph Hellwig<hch at lst.de>
> ---
>   drivers/md/dm-core.h      |  5 -----
>   drivers/md/dm.c           | 20 ++++++--------------
>   fs/block_dev.c            | 39 ++++++++++++++++-----------------------
>   fs/buffer.c               |  2 +-
>   fs/ext4/ioctl.c           |  2 +-
>   fs/f2fs/file.c            | 14 +++++---------

For f2fs part,

Acked-by: Chao Yu <yuchao0 at huawei.com>

Thanks,

>   fs/xfs/xfs_fsops.c        |  7 ++-----
>   include/linux/blk_types.h |  1 +
>   include/linux/blkdev.h    |  4 ++--
>   9 files changed, 34 insertions(+), 60 deletions(-)