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job control: Small reorganization of wait_consider_task()

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Move EXIT_DEAD test in wait_consider_task() above ptrace check.  As
ptraced tasks can't be EXIT_DEAD, this change doesn't cause any
behavior change.  This is to prepare for further changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
This commit is contained in:
Tejun Heo 2011-03-23 10:37:01 +01:00
commit 823b018e5b
1 changed files with 4 additions and 3 deletions
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7
kernel/exit.c
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@ -1537,6 +1537,10 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace,
return 0;
}
/* dead body doesn't have much to contribute */
if (p->exit_state == EXIT_DEAD)
return 0;
if (likely(!ptrace) && unlikely(task_ptrace(p))) {
/*
* This child is hidden by ptrace.
@ -1546,9 +1550,6 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace,
return 0;
}
if (p->exit_state == EXIT_DEAD)
return 0;
/*
* We don't reap group leaders with subthreads.
*/