Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

wait_task_stopped/continued: remove unneeded p->signal != NULL check

Browse source 
The child was found on ->children list under tasklist_lock, it must have a
valid ->signal. __exit_signal() both removes the task from parent->children
and clears ->signal "atomically" under write_lock(tasklist).

Remove unneeded checks.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2007-10-16 23:27:00 -07:00 committed by Linus Torvalds
parent 18442cf28a
commit 715015e8da
1 changed files with 1 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
kernel/exit.c
View file

@ -1322,7 +1322,7 @@ static int wait_task_stopped(struct task_struct *p, int delayed_group_leader,
if (!p->exit_code)
return 0;
if (delayed_group_leader && !(p->ptrace & PT_PTRACED) &&
p->signal && p->signal->group_stop_count > 0)
p->signal->group_stop_count > 0)
/*
* A group stop is in progress and this is the group leader.
* We won't report until all threads have stopped.
@ -1436,9 +1436,6 @@ static int wait_task_continued(struct task_struct *p, int noreap,
pid_t pid;
uid_t uid;
if (unlikely(!p->signal))
return 0;
if (!(p->signal->flags & SIGNAL_STOP_CONTINUED))
return 0;