fix: decrement nlink on unlink and preserve inode/nlink on rename#276
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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What
unlink()now decrementsnlinkon the unlinked file and on any remaining hard links sharing the same inode.rename()now preservesinodeandnlinkmetadata.Why
After
link('/a', '/b')+unlink('/a'), both mocks retained stalenlinkvalues — the remaining hard link/bstill showednlink=2instead ofnlink=1. Similarly,rename('/old', '/new')lost inode identity and link count, making the renamed file appear as a different inode.How
unlink()method: scans%files_being_mockedfor mocks sharing the same inode and decrements theirnlinkbefore decrementing self__rename: copiesinodeandnlinkalongsidemode/uid/gidTesting
t/symlink_link.t: unlink after link decrements nlink on remaining hard link; single-file unlink decrements nlinkt/rename.t: rename preserves inode and nlink values🤖 Generated with Claude Code