NFSD: Extract revoke_one_stid() utility function

The per-stateid revocation logic in nfsd4_revoke_states() handles
four stateid types in a deeply nested switch. Extract two helpers:

revoke_ol_stid() performs admin-revocation of an open or lock
stateid with st_mutex already held: marks the stateid as
SC_STATUS_ADMIN_REVOKED, closes POSIX locks for lock stateids,
and releases file access.

revoke_one_stid() dispatches by sc_type, acquires st_mutex with
the appropriate lockdep class for open and lock stateids, and
handles delegation unhash and layout close inline.

No functional change. Preparation for adding export-scoped state
revocation which reuses revoke_one_stid().

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

0 files changed, 0 insertions, 0 deletions