Commit 7e350197 authored Sep 25, 2017 by Olga Kornievskaia Committed by Olga Kornievskaia Oct 09, 2019

NFS: for "inter" copy treat ESTALE as ENOTSUPP



If the client sends an "inter" copy to the destination server but
it only supports "intra" copy, it can return ESTALE (since it
doesn't know anything about the file handle from the other server
and does not recognize the special case of "inter" copy). Translate
this error as ENOTSUPP and also send OFFLOAD_CANCEL to the source
server so that it can clean up state.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>

parent 0b9018b9

fs/nfs/nfs42proc.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -391,6 +391,11 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
		args.sync = true;
		dst_exception.retry = 1;
		continue;
		} else if (err == -ESTALE &&
		!nfs42_files_from_same_server(src, dst)) {
		nfs42_do_offload_cancel_async(src, &args.src_stateid);
		err = -EOPNOTSUPP;
		break;
		}

		err2 = nfs4_handle_exception(server, err, &src_exception);

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