Messages in this thread | | | From | Sergei Shtepa <> | Subject | [PATCH 0/3] block: blk_interposer - Block Layer Interposer | Date | Wed, 9 Dec 2020 16:01:48 +0300 |
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Hi all.
I try to suggest the Block Layer Interposer (blk_interposer) again. It`s allows to intercept bio requests, remap bio to another devices or add new bios.
Initially, blk_interposer was designed to be compatible with device mapper. Our (my and Hannes) previous attempt to offer blk_interposer integrated with device mapper did not receive any comments from the dm-devel team, and without their help I will not be able to make a full implementation. I hope later they will have time to support blk_interposer in device mapper.
And my blk-snap module requires an architecture change to support blk_interposer.
This time I offer it along with a sample. Despite the fact that blk_interposer is quite simple, there are a few non-obvious points that I would like to clarify.
However, I suggest the blk_interposer now so that people could discuss it and use it in their projects as soon as possible.
Sergei Shtepa (3): block: blk_interposer - Block Layer Interposer block: blk_interposer - sample block: blk_interposer - sample config
block/blk-core.c | 32 +++ include/linux/blk_types.h | 6 +- include/linux/genhd.h | 12 +- samples/Kconfig | 7 + samples/Makefile | 1 + samples/blk_interposer/Makefile | 2 + samples/blk_interposer/blk-interposer.c | 276 ++++++++++++++++++++++++ 7 files changed, 333 insertions(+), 3 deletions(-) create mode 100644 samples/blk_interposer/Makefile create mode 100644 samples/blk_interposer/blk-interposer.c
-- 2.20.1
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