From: Wedson Almeida Filho <walmeida@xxxxxxxxxxxxx>
This makes it harder for accidental or malicious changes to
erofs_xattr_handlers or xattr_handler_map at runtime.
Cc: Gao Xiang <xiang@xxxxxxxxxx>
Cc: Chao Yu <chao@xxxxxxxxxx>
Cc: Yue Hu <huyue2@xxxxxxxxxxx>
Cc: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>
Cc: linux-erofs@xxxxxxxxxxxxxxxx
Signed-off-by: Wedson Almeida Filho <walmeida@xxxxxxxxxxxxx>