From ebca4cda1133775111e8b09f7124a7e5e391926d Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@tv-sign.ru>
Date: Tue, 16 Oct 2007 23:26:59 -0700
Subject: [PATCH] zap_other_threads: don't optimize thread_group_empty() case
Nowadays thread_group_empty() and next_thread() are simple list operations,
this optimization doesn't make sense: we are doing exactly same check one
line below.
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>
---
kernel/signal.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/signal.c b/kernel/signal.c
index 2f7736ff7418..b7aa492e16ad 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -985,9 +985,6 @@ void zap_other_threads(struct task_struct *p)
p->signal->flags = SIGNAL_GROUP_EXIT;
p->signal->group_stop_count = 0;
- if (thread_group_empty(p))
- return;
-
for (t = next_thread(p); t != p; t = next_thread(t)) {
/*
* Don't bother with already dead threads
--
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