On 9/26/18 2:00 AM, Helen Koike wrote:
> This series is reviving an old patchwork.
> Booting from a mapped device requires an initramfs. This series is
> allows for device-mapper targets to be configured at boot time for
> use early in the boot process (as the root device or otherwise).
>
> Example, the following could be added in the boot parameters.
> dm="lroot,,,rw, 0 4096 linear 98:16 0, 4096 4096 linear 98:32 0"
> root=/dev/dm-0
>
> Enric Balletbo i Serra (1):
> dm ioctl: add a device mapper ioctl function.
>
> Will Drewry (1):
> init: add support to directly boot to a mapped device
>
> .../admin-guide/kernel-parameters.rst | 1 +
> .../admin-guide/kernel-parameters.txt | 3 +
> Documentation/device-mapper/dm-boot.txt | 63 +++
> drivers/md/dm-ioctl.c | 50 ++
> include/linux/device-mapper.h | 6 +
> init/Makefile | 1 +
> init/do_mounts.c | 1 +
> init/do_mounts.h | 10 +
> init/do_mounts_dm.c | 475 ++++++++++++++++++
> 9 files changed, 610 insertions(+)
> create mode 100644 Documentation/device-mapper/dm-boot.txt
> create mode 100644 init/do_mounts_dm.c
>
Sorry about sending this email multiple times, my git send-email wans't
properly configured.
Helen
