[LTP] [PATCH] kill05: fix race condition in do_master_child

[Jan S. <jst...@re...>]

There is a race condition when starting child. Master child can go
forward before child changes its reuid.
Fix this by waiting until child is ready.

Signed-off-by: Jan Stancek <jst...@re...>
---
  testcases/kernel/syscalls/kill/kill05.c |   25 +++++++++++++++++--------
  1 files changed, 17 insertions(+), 8 deletions(-)