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7e1f9e2cd2
Add the debugfs and trace plumbing used to trigger and observe manual client reset. The reset interface exposes a trigger file for operator-initiated reset and a status file for tracking the most recent run. The tracepoints record scheduling, completion, and blocked caller behavior so reset progress can be diagnosed from the client side. debugfs layout under /sys/kernel/debug/ceph/<client>/reset/: trigger - write to initiate a manual reset status - read to see the most recent reset result The reset directory is cleaned up via debugfs_remove_recursive() on the parent, so individual file dentries are not stored. Tracepoints: ceph_client_reset_schedule - reset queued ceph_client_reset_complete - reset finished (success or failure) ceph_client_reset_blocked - caller blocked waiting for reset ceph_client_reset_unblocked - caller unblocked after reset All tracepoints use a null-safe access for monc.auth->global_id to guard against early-init or late-teardown edge cases. Signed-off-by: Alex Markuze <amarkuze@redhat.com> Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com> Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>