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Commit 7c1e6e58 authored by Peng Tao's avatar Peng Tao Committed by Trond Myklebust
Browse files

NFS41: map NFS4ERR_LAYOUTUNAVAILABLE to ENODATA 



Instead of mapping it to EIO that is a fatal error and
fails application. We'll go inband after getting
NFS4ERR_LAYOUTUNAVAILABLE.

Signed-off-by: default avatarPeng Tao <tao.peng@primarydata.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent d6c843b9

fs/nfs/nfs4proc.c

+9 −0
Original line number Diff line number Diff line
@@ -7795,6 +7795,15 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata) 
	switch (task->tk_status) {

	case 0:

		goto out;



	/*

	 * NFS4ERR_LAYOUTUNAVAILABLE means we are not supposed to use pnfs

	 * on the file. set tk_status to -ENODATA to tell upper layer to

	 * retry go inband.

	 */

	case -NFS4ERR_LAYOUTUNAVAILABLE:

		task->tk_status = -ENODATA;

		goto out;

	/*

	 * NFS4ERR_BADLAYOUT means the MDS cannot return a layout of

	 * length lgp->args.minlength != 0 (see RFC5661 section 18.43.3).