Commit d08d32e6 authored Jun 21, 2013 by J. Bruce Fields

nfsd4: return delegation immediately if lease fails

This case shouldn't happen--the administrator shouldn't really allow
other applications access to the export until clients have had the
chance to reclaim their state--but if it does then we should set the
"return this lease immediately" bit on the reply. That still leaves
some small races, but it's the best the protocol allows us to do in the
case a lease is ripped out from under us....

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

parent 0a262ffb

fs/nfsd/nfs4state.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -3143,8 +3143,10 @@ nfs4_open_delegation(struct net net, struct svc_fh fh,
		out_no_deleg:
		open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE;
		if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS &&
		open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
		open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE) {
		dprintk("NFSD: WARNING: refusing delegation reclaim\n");
		open->op_recall = 1;
		}

		/* 4.1 client asking for a delegation? */
		if (open->op_deleg_want)