From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: From: Olga Kornievskaia Subject: [PATCH v4 09/11] NFS: for "inter" copy treat ESTALE as ENOTSUPP Date: Fri, 26 Oct 2018 16:10:55 -0400 Message-Id: <20181026201057.36899-11-olga.kornievskaia@gmail.com> In-Reply-To: <20181026201057.36899-1-olga.kornievskaia@gmail.com> References: <20181026201057.36899-1-olga.kornievskaia@gmail.com> To: trond.myklebust@hammerspace.com, anna.schumaker@netapp.com, viro@zeniv.linux.org.uk, smfrench@gmail.com, miklos@szeredi.hu Cc: linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-man@vger.kernel.org List-ID: From: Olga Kornievskaia 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 98fe00b..00809b3 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -395,6 +395,11 @@ 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); -- 1.8.3.1