nfsd: optimize destroy_lockowner cl_lock thrashing
Reduce the cl_lock trashing in destroy_lockowner. Unhash all of the lockstateids on the lockowner's list. Put the reference under the lock and see if it was the last one. If so, then add it to a private list to be destroyed after we drop the lock. Signed-off-by:Jeff Layton <jlayton@primarydata.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com>
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a819ecc1
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