fix: avoid double-counting ZFS dataset usage#3879

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Haihan-Jiang wants to merge 1 commit into

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Haihan-Jiang:codex/cadvisor-zfs-capacity

Haihan-Jiang commented May 27, 2026

Fixes #3832

Summary

compute ZFS capacity from used + available
stop adding usedbydataset, which is already included in ZFS used
add a regression test for the capacity calculation

Testing

go test ./fs/zfs
go test ./fs/...
git diff --check


          fix: avoid double-counting ZFS dataset usage

be208f3

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