uutils / uutils/coreutils

count reflink disk usage only once in du

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#3,906 13 comments 0 reactions 0 assignees View on GitHub

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good first issue U - du
Dominant language
Rust
Stars
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Forks
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Avg merge
1d 5h
Merged PRs (30d)
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Description

uu-du reports little to no disk usage for hard links, but double (triple or more) counts disk used by reflinks. Would be nice if reflinks were counted only once.

Contributor guide

Open the contributing guide

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

Start by locating the uu-du implementation and its existing handling of hard links, then inspect how disk usage is calculated for reflinks. Reproduce the reported overcount with files sharing reflink data and compare it with hard-link behavior. Done means shared reflink storage is counted only once.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cli, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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