6785 nfs4_attr_cache deadlock
Avoid a deadlock with the r_serial thread waiting for os_sync_lock in nfs4_get_otw_cred_by_osp() which might be held by the nfs4close_otw thread. This thread would wait
6785 nfs4_attr_cache deadlock
Avoid a deadlock with the r_serial thread waiting for os_sync_lock in nfs4_get_otw_cred_by_osp() which might be held by the nfs4close_otw thread. This thread would wait in nfs4_attr_cache() for the completion of the r_serial thread.
(cherry picked from commit 409f86d7f0d8d6117290b1436ed629f37289521b)
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