Hello!

This is a version of device mapper abstractions. Based on
these, we also implement a linear target as a PoC.
Any suggestions are welcomed, thanks!

Additionally, there are some dummy codes used to wrap the block
layer structs, i.e., `bio` and `request`, which seems being
in the review process, so I just place it in the same file.

Qingsong Chen (8):
  rust: kernel: add basic abstractions for device-mapper
  rust: kernel: add request related TargetOperations
  rust: kernel: add some hook TargetOperations
  rust: kernel: add some info handler TargetOperations
  rust: kernel: add underlying device related TargetOperations
  rust: kernel: add DAX related TargetOperations
  rust: kernel: prepare to implement dm target in Rust
  samples: rust: add a device mapper linear target

 rust/bindings/bindings_helper.h |    2 +
 rust/helpers.c                  |    7 +
 rust/kernel/device_mapper.rs    | 1279 +++++++++++++++++++++++++++++++
 rust/kernel/lib.rs              |    1 +
 samples/rust/Kconfig            |   10 +
 samples/rust/Makefile           |    1 +
 samples/rust/rust_dm_linear.rs  |  257 +++++++
 7 files changed, 1557 insertions(+)
 create mode 100644 rust/kernel/device_mapper.rs
 create mode 100644 samples/rust/rust_dm_linear.rs

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2.40.1