ROX-33222: handle multiple hardlinks - #1468

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ovalenti merged 33 commits into

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ROX-33222-multiple-hardlinks

Sep 8, 2026

Commits on Sep 7, 2026

path_link ebpf program
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b5804bc
Test the new path_link program
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62d3049
Remove inode only when sure it is orphaned.
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55ee3c2
address lint issues
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f7b52a3
Inode refcount for scan+unlink
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b067f5d
Inode refcount for rename
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7857619
Update 'link' to send is_monitored info
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9897a48
Handle 'link' events, sends CREATE messages
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464f422
newline format fix
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e320816
Revert to only include new_dentry for path_link
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08c5645
Formatting
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5b9388d
Register path_link metrics
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501f079
Better 'matches' in is_link()
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29b2dfe
Document usage_count
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1547582
Verify that after last occurence, no event is produced.
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c8781b1
Verify that a secondary hardlink still catches accesses
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1a8c87c
Properly handle refcount cleanup for ignored events
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8594c5a
Forget host-path for inodes overwriten by rename
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b263377
Factorize match branches.
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6390fcb
Use an implicit assignment for `usage_count`
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0d005a4
Extract usage_count_inc()
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2a77444
Factorize similar cases
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a960010
unref_inode returns the host path of deleted inode + borrow inode_map
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58d732c
Hardlink related testing for most other FS operations
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d96dac6
More inode refcount testing
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2bddde8
Hardlink support
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4b957fe
Add mapping for link events
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7e2b2a9

Commits on Sep 8, 2026

Resort to using the only known host_path
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f8ed0e2
Factor test_open_via_original_with_hardlink into test_open_via_hardlink
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108604f
test completely ignored hardlink
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416b2a6
Check ignored file tracked via hardlink
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e026535
Add sentinel event
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b433f3e
Add more coverage in unlink test
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9c98184