On Thu, Mar 29, 2018 at 01:22:39PM +0200, Dominik Brodowski wrote: > All call sites of sys_wait4() set *rusage to NULL. Therefore, there is > no need for the copy_to_user() handling of *rusage, and we can use > kernel_wait4() directly. > > This patch is part of a series which removes in-kernel calls to syscalls. > On this basis, the syscall entry path can be streamlined. For details, see > http://lkml.kernel.org/r/20180325162527.GA17492@xxxxxxxxxxxxxxxxxxxxxxxxxx > > Cc: Luis R. Rodriguez <mcgrof@xxxxxxxxxx> > Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Signed-off-by: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx> Acked-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx> Luis