NFSv4: Fix hangs when recovering open state after a server reboot
authorTrond Myklebust <trond.myklebust@hammerspace.com>
Tue, 21 Mar 2023 04:17:36 +0000 (00:17 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 6 Apr 2023 10:10:54 +0000 (12:10 +0200)
commitf6bcbd556978edb98ad96bb2038995221f58fa58
tree74cd776713103738c855d105365d0c79117ad698
parent3f5ded246953dd41608444a61b5ae1cfda3ef61e
NFSv4: Fix hangs when recovering open state after a server reboot

commit 6165a16a5ad9b237bb3131cff4d3c601ccb8f9a3 upstream.

When we're using a cached open stateid or a delegation in order to avoid
sending a CLAIM_PREVIOUS open RPC call to the server, we don't have a
new open stateid to present to update_open_stateid().
Instead rely on nfs4_try_open_cached(), just as if we were doing a
normal open.

Fixes: d2bfda2e7aa0 ("NFSv4: don't reprocess cached open CLAIM_PREVIOUS")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/nfs/nfs4proc.c