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[PATCH] cleanup __exit_signal->cleanup_sighand path

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Move 'tsk->sighand = NULL' from cleanup_sighand() to __exit_signal().  This
makes the exit path more understandable and allows us to do
cleanup_sighand() outside of ->siglock protected section.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Oleg Nesterov 2006-03-28 16:11:27 -08:00 • committed by Linus Torvalds
parent 4a2c7a7837
commit a7e5328a06
3 changed files with 5 additions and 8 deletions
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3
kernel/exit.c
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@ -114,10 +114,11 @@ static void __exit_signal(struct task_struct *tsk)
__unhash_process(tsk);
tsk->signal = NULL;
cleanup_sighand(tsk);
tsk->sighand = NULL;
spin_unlock(&sighand->siglock);
rcu_read_unlock();
__cleanup_sighand(sighand);
clear_tsk_thread_flag(tsk,TIF_SIGPENDING);
flush_sigqueue(&tsk->pending);
if (sig) {