From 7e350197a1c10ad137ec51689f317e3e94e4cc41 Mon Sep 17 00:00:00 2001 From: Olga Kornievskaia Date: Mon, 25 Sep 2017 15:59:44 -0400 Subject: [PATCH] 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 --- fs/nfs/nfs42proc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index e34ade844737..6ed5a16dc511 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -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);