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-rw-r--r--fs/nfs/nfs42proc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 13424f0d793b..ecb428512fe1 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -1093,6 +1093,9 @@ static int _nfs42_proc_clone(struct rpc_message *msg, struct file *src_f,
&args.seq_args, &res.seq_res, 0);
trace_nfs4_clone(src_inode, dst_inode, &args, status);
if (status == 0) {
+ /* a zero-length count means clone to EOF in src */
+ if (count == 0 && res.dst_fattr->valid & NFS_ATTR_FATTR_SIZE)
+ count = nfs_size_to_loff_t(res.dst_fattr->size) - dst_offset;
nfs42_copy_dest_done(dst_inode, dst_offset, count);
status = nfs_post_op_update_inode(dst_inode, res.dst_fattr);
}