On Thu, Oct 27, 2016 at 7:15 AM, Dmitry Safonov <[email protected]> wrote: > Those pointers were initialized before call to _install_special_mapping > after the commit f7b6eb3fa072 ("x86: Set context.vdso before installing > the mapping"). This is not required anymore as special mappings have > their vma name and don't use arch_vma_name() after commit a62c34bd2a8a > ("x86, mm: Improve _install_special_mapping and fix x86 vdso naming"). > So, this way to init looks less entangled. > I even belive, we can remove null initializers: > - on failure load_elf_binary() will not start a new thread; > - arch_prctl will have the same pointers as before syscall.
Acked-by: Andy Lutomirski <[email protected]>
