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NFSD: fix error handling in NFSv4.0 callbacks 

When the server tries to do a callback and a client fails it due to
authentication problems, we need the server to set callback down
flag in RENEW so that client can recover.

Suggested-by: Bruce Fields <bfields@redhat.com>
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Benjamin Coddington <bcodding@redhat.com>
Link: https://lore.kernel.org/linux-nfs/FB84E90A-1A03-48B3-8BF7-D9D10AC2C9FE@oracle.com/T/#t
rM2-mainline
Olga Kornievskaia 2021-03-11 10:55:00 -05:00 committed by Chuck Lever
parent 614c975017
commit b4250dd868
1 changed files with 1 additions and 0 deletions
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fs/nfsd/nfs4callback.c
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@ -1189,6 +1189,7 @@ static void nfsd4_cb_done(struct rpc_task *task, void *calldata)
switch (task->tk_status) {
case -EIO:
case -ETIMEDOUT:
case -EACCES:
nfsd4_mark_cb_down(clp, task->tk_status);
}
break;