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Commit f25efd85 authored by Steve Dickson's avatar Steve Dickson Committed by Trond Myklebust
Browse files

NFS: Map minor mismatch error to protocol not support error. 



Sservers that only have NFSv4.1 support the
NFS4ERR_MINOR_VERS_MISMATCH error is return on
v4.0 mounts. Mapping that error to EPROTONOSUPPORT
will cause the mount to back off to v3 instead of
failing.

Signed-off-by: default avatarSteve Dickson <steved@redhat.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 9bce008b

fs/nfs/nfs4proc.c

+2 −0
Original line number Diff line number Diff line
@@ -105,6 +105,8 @@ static int nfs4_map_errors(int err) 
		return -EINVAL;

	case -NFS4ERR_SHARE_DENIED:

		return -EACCES;

	case -NFS4ERR_MINOR_VERS_MISMATCH:

		return -EPROTONOSUPPORT;

	default:

		dprintk("%s could not handle NFSv4 error %d\n",

				__func__, -err);