Add --max-storage quota enforcement and statfs()#24
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congwang-mk merged 1 commit intomainfrom Mar 13, 2026
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Signed-off-by: Cong Wang <cwang@multikernel.io>
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Summary
--max-storageflag tobranchfs mountto limit total delta storage (e.g.--max-storage 2G)ENOSPCstatfs()FUSE callback — reports quota-derived values when set, otherwise reports from the underlying storage filesystemtests/test_quota.shwith 6 test cases covering write within/exceeding quota, COW quota enforcement, delete reclaiming space, statfs reporting, and unlimited modeTest plan
test_quota.shpasses all 6 tests (10 assertions)cargo build --releasecleancargo fmtclean