There is a variable tsk->signal->group_exit_task that is only truly used
in de_thread. These changes modify the coredump code and the
signal_group_exit() function to stop using group_exit_task, and rename
the group_exit_task variable to group_exec_task.
In addition as I think Linus was asking an additional signal flag is
added called SIGNAL_GROUP_DETHREAD, and that flag is used in the
function signal_group_exit() so that only signal->flags needs to be
tested.
Eric W. Biederman (6):
signal: Pretty up the SIGNAL_GROUP_FLAGS
exec: Lock more defensively in exec
signal: Implement SIGNAL_GROUP_DETHREAD
signal: In signal_group_exit remove the group_exit_task test
coredump: Stop using group_exit_task
exec: Rename group_exit_task group_exec_task and correct the Documentation
fs/coredump.c | 2 --
fs/exec.c | 22 ++++++++++++++++------
include/linux/sched/signal.h | 33 +++++++++++++++++----------------
kernel/exit.c | 4 ++--
4 files changed, 35 insertions(+), 26 deletions(-)