NFSv4.1 fix incorrect return value in copy_file_range

[thirdparty/kernel/stable.git] / fs / nfs / nfs4file.c

diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 45b2322e092d2455b508a8fdc00f5bde0b73c4e9..00d17198ee12aa7f6177bd3c1c5830fa655d1033 100644 (file)
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -133,8 +133,10 @@ static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
                                    struct file *file_out, loff_t pos_out,
                                    size_t count, unsigned int flags)
 {
+       if (!nfs_server_capable(file_inode(file_out), NFS_CAP_COPY))
+               return -EOPNOTSUPP;
        if (file_inode(file_in) == file_inode(file_out))
-               return -EINVAL;
+               return -EOPNOTSUPP;
        return nfs42_proc_copy(file_in, pos_in, file_out, pos_out, count);
 }