NFS: COPY handle ERR_OFFLOAD_DENIED
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>
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@ -391,7 +391,8 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
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args.sync = true;
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dst_exception.retry = 1;
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continue;
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} else if (err == -ESTALE &&
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} else if ((err == -ESTALE ||
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err == -NFS4ERR_OFFLOAD_DENIED) &&
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!nfs42_files_from_same_server(src, dst)) {
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nfs42_do_offload_cancel_async(src, &args.src_stateid);
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err = -EOPNOTSUPP;
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