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authorTigran Mkrtchyan <tigran.mkrtchyan@desy.de>2023-02-07 18:46:35 +0100
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2023-02-15 16:42:51 +0100
commit4730515378a70064581b27ed112fcfc6f2a379ca (patch)
tree77fa6f76a96e6861ae5c89986dcd36dd854247e0 /fs/nfs
parentNFS: fix disabling of swap (diff)
downloadlinux-4730515378a70064581b27ed112fcfc6f2a379ca.tar.xz
linux-4730515378a70064581b27ed112fcfc6f2a379ca.zip
nfs42: do not fail with EIO if ssc returns NFS4ERR_OFFLOAD_DENIED
The NFSv4.2 server even if supports intra-SSC might prefer that for a particular file a classic copy is performed. As returning ENOTSUPP will clear the SSC capability of the server by the client, server might return NFS4ERR_OFFLOAD_DENIED (well, spec talks about remote servers there). Update nfs42_proc_copy to handle NFS4ERR_OFFLOAD_DENIED as ENOTSUPP, but without clearing NFS_CAP_COPY bit. Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs42proc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index ecb428512fe1..93e306bf4430 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -460,7 +460,8 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
if (err >= 0)
break;
- if (err == -ENOTSUPP &&
+ if ((err == -ENOTSUPP ||
+ err == -NFS4ERR_OFFLOAD_DENIED) &&
nfs42_files_from_same_server(src, dst)) {
err = -EOPNOTSUPP;
break;