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NFS: COPY handle ERR_OFFLOAD_DENIED

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If server sends ERR_OFFLOAD_DENIED error, the client must fall
back on doing copy the normal way. Return ENOTSUPP to the vfs and
fallback to regular copy.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
This commit is contained in:
Olga Kornievskaia 2017-09-26 13:51:39 -04:00 committed by Olga Kornievskaia
parent 7e350197a1
commit 6b61c969d5
1 changed files with 2 additions and 1 deletions
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3
fs/nfs/nfs42proc.c
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@ -391,7 +391,8 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
args.sync = true;
dst_exception.retry = 1;
continue;
} else if (err == -ESTALE &&
} else if ((err == -ESTALE ||
err == -NFS4ERR_OFFLOAD_DENIED) &&
!nfs42_files_from_same_server(src, dst)) {
nfs42_do_offload_cancel_async(src, &args.src_stateid);
err = -EOPNOTSUPP;