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From: Olga Kornievskaia <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
Subject: [PATCH v4 09/11] NFS: for "inter" copy treat ESTALE as ENOTSUPP
Date: Fri, 26 Oct 2018 16:10:55 -0400	[thread overview]
Message-ID: <20181026201057.36899-11-olga.kornievskaia@gmail.com> (raw)
In-Reply-To: <20181026201057.36899-1-olga.kornievskaia@gmail.com>

From: Olga Kornievskaia <kolga@netapp.com>

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>
---
 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

  parent reply	other threads:[~2018-10-26 20:10 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-26 20:10 [PATCH v4 00/11] client-side support for "inter" SSC copy Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 01/11] VFS: move cross device copy_file_range() check into filesystems Olga Kornievskaia
2018-10-26 21:23   ` Matthew Wilcox
2018-10-26 22:10   ` Steve French
2018-10-27  9:09   ` Dave Chinner
2018-10-29 14:31     ` Olga Kornievskaia
2018-10-27 11:11   ` Jeff Layton
2018-10-26 20:10 ` [PATCH 1/1] man-page: copy_file_range(2) allow for cross-device copies Olga Kornievskaia
2018-10-27  9:12   ` Dave Chinner
2018-10-27 13:23     ` Matthew Wilcox
2018-10-28  1:33       ` Dave Chinner
2018-10-28  2:39         ` Matthew Wilcox
2018-10-29 14:25         ` Olga Kornievskaia
2018-10-29 15:52           ` Olga Kornievskaia
2018-10-29 17:49             ` Amir Goldstein
2018-10-26 20:10 ` [PATCH v4 02/11] VFS: copy_file_range check validity of input source offset Olga Kornievskaia
2018-10-26 21:26   ` Matthew Wilcox
2018-10-29 16:09     ` Olga Kornievskaia
2018-10-27  9:27   ` Dave Chinner
2018-10-29 14:41     ` Olga Kornievskaia
2018-10-30  9:03       ` Dave Chinner
2018-10-30 13:40         ` Olga Kornievskaia
2018-10-30 23:40           ` Dave Chinner
2018-10-30 21:10         ` Olga Kornievskaia
2018-10-30 21:12           ` Olga Kornievskaia
2018-10-31  0:14           ` Dave Chinner
2018-10-31  0:14             ` Dave Chinner
2018-10-31 14:51             ` Olga Kornievskaia
2018-10-31 23:33               ` Dave Chinner
2018-10-26 20:10 ` [PATCH v4 03/11] NFS: NFSD defining nl4_servers structure needed by both Olga Kornievskaia
2018-10-27 11:14   ` Jeff Layton
2018-10-29 14:28     ` Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 04/11] NFS: add COPY_NOTIFY operation Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 05/11] NFS: add ca_source_server<> to COPY Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 06/11] NFS: also send OFFLOAD_CANCEL to source server Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 07/11] NFS: inter ssc open Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 08/11] NFS: skip recovery of copy open on dest server Olga Kornievskaia
2018-10-26 20:10 ` Olga Kornievskaia [this message]
2018-10-26 20:10 ` [PATCH v4 10/11] NFS: COPY handle ERR_OFFLOAD_DENIED Olga Kornievskaia
2018-10-26 20:10 ` [PATCH v4 11/11] NFS: replace cross device check in copy_file_range Olga Kornievskaia
2018-10-26 21:22   ` Matthew Wilcox
2018-10-27 11:08   ` Jeff Layton
2018-10-27 13:26     ` Matthew Wilcox
2018-10-29 14:28       ` Olga Kornievskaia

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