[PATCH v2 3/9] blk: blkmap: Add basic infrastructure

[Simon Glass]

On Thu, 16 Feb 2023 at 08:34, Tobias Waldekranz <tobias at waldekranz.com> wrote:
>
> blkmaps are loosely modeled on Linux's device mapper subsystem. The
> basic idea is that you can create virtual block devices whose blocks
> can be backed by a plethora of sources that are user configurable.
>
> This change just adds the basic infrastructure for creating and
> removing blkmap devices. Subsequent changes will extend this to add
> support for actual mappings.
>
> Signed-off-by: Tobias Waldekranz <tobias at waldekranz.com>
> ---
>  MAINTAINERS                |   6 +
>  drivers/block/Kconfig      |  18 ++
>  drivers/block/Makefile     |   1 +
>  drivers/block/blk-uclass.c |   1 +
>  drivers/block/blkmap.c     | 343 +++++++++++++++++++++++++++++++++++++
>  include/blkmap.h           |  35 ++++
>  include/dm/uclass-id.h     |   1 +
>  7 files changed, 405 insertions(+)
>  create mode 100644 drivers/block/blkmap.c
>  create mode 100644 include/blkmap.h
>

Reviewed-by: Simon Glass <sjg at chromium.org>