tree 882bd87a72e38396f21739bf8196ebbf3ef521b3
parent 4399396eecfc586a1d92e64fe49c3c899f080436
author Kinglong Mee <kinglongmee@gmail.com> 1433242765 +0800
committer J. Bruce Fields <bfields@redhat.com> 1433451090 -0400

nfsd: Update callback sequnce id only CB_SEQUENCE success

When testing pnfs layout, nfsd got error NFS4ERR_SEQ_MISORDERED.
It is caused by nfs return NFS4ERR_DELAY before validate_seqid(),
don't update the sequnce id, but nfsd updates the sequnce id !!!

According to RFC5661 20.9.3,
" If CB_SEQUENCE returns an error, then the state of the slot
(sequence ID, cached reply) MUST NOT change. "

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>