oxidecomputer / oxidecomputer/crucible

Block size is stored in two places in `RegionDefinition`

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#923 1 comment 0 reactions 0 assignees View on GitHub

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Dominant language
Rust
Stars
260
Forks
34
Avg merge
2d 1h
Merged PRs (30d)
8

Description

In a RegionDefinition, the block size is stored both in block_size (as bytes) and in extent_size.shift (as a shift).

We don't check that they match!

block_size is used for total_size(); extent_size.shift is used in extent_from_offset(..). We should remove this duplication, either by making extent_size a single u64 (instead of a Block) or removing block_size.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Locate RegionDefinition and trace the uses of block_size, extent_size.shift, total_size(), and extent_from_offset(..). Review both proposed representations and their callers before choosing one; done means the duplicated block-size state is removed while both size calculations retain their intended behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
backend
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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