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signals: do_signal_stop(): use signal_group_exit()

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do_signal_stop() needs signal_group_exit() but checks sig->group_exit_task.
 This (optimization) is correct, SIGNAL_STOP_DEQUEUED and SIGNAL_GROUP_EXIT
are mutually exclusive, but looks confusing.  Use signal_group_exit(), this
is not fastpath, the code clarity is more important.

Signed-off-by: Oleg Nesterov <[email protected]>
Cc: Roland McGrath <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Oleg Nesterov 2008-04-30 00:52:36 -07:00 • committed by Linus Torvalds
commit 573cf9ad72
1 changed files with 1 additions and 1 deletions
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2
kernel/signal.c
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@ -1717,7 +1717,7 @@ static int do_signal_stop(int signr)
struct task_struct *t;
if (!likely(sig->flags & SIGNAL_STOP_DEQUEUED) ||
unlikely(sig->group_exit_task))
unlikely(signal_group_exit(sig)))
return 0;
/*
* There is no group stop already in progress.