After a (re)start the owner defers would-be grants for posixLockWarmup
while mounts re-assert, trusting only locally-visible conflicts, so it
does not double-grant from empty state; a deferred grant is a retry for
SetLkw and EAGAIN for non-blocking SetLk, never a spurious grant. Cooling
now fail-closes: if the previous owner is unreachable during a ring
change, defer rather than risk a double-grant. readyAt is atomic so the
handler reads it without locking.
Chris LuandGitHub
85ca3cb757