test/fuse_dlm, test/fuse_p2p/peer_chunk_sharing_test.go and
unmaintained/check_disk_size use syscall.Flock, syscall.Stat_t and
syscall.Statfs, which do not exist on Windows. Without constraints,
gopls and go vet on a Windows host report them as undefined.
fuse_p2p/framework_test.go already carries `linux || darwin`; the FUSE
test files now match it. check_disk_size uses the same constraint as
weed/stats/disk_supported.go.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Adds two FUSE integration tests on the existing dlm cluster harness (the
-dlm mounts route advisory locks to the owner filer):
- TestPosixLockCrossMount: an flock taken on one mount blocks the other,
and is grantable after release — the routed-to-owner path end to end.
- TestPosixLockSurvivesFilerLoss: hold flocks on many files, stop filer1
so keys it owned migrate to filer0; after the ring settles and the
holding mount re-asserts, every lock is still honored. Asserts only the
settled state; the transient migration window is unit-covered.
Locks are taken on read-only fds so the -dlm whole-file write lock (a
different mechanism, held until close) isn't involved. Skipped on
non-Linux: only Linux forwards advisory locks (SETLK) to the FUSE server;
macFUSE handles flock in-kernel per mount.
