From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Roland McGrath <roland@redhat.com>, linux-kernel@vger.kernel.org
Subject: [PATCH] copy_process: remove the unneeded clear_tsk_thread_flag(TIF_SIGPENDING)
Date: Mon, 27 Apr 2009 21:48:45 +0200 [thread overview]
Message-ID: <20090427194845.GA6245@redhat.com> (raw)
The forked child can have TIF_SIGPENDING if it was copied from parent's
ti->flags. But this is harmless and actually almost never happens, because
copy_process() can't succeed if signal_pending() == T.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
--- PTRACE/kernel/fork.c~FORK_SIGPENDING 2009-04-13 17:05:52.000000000 +0200
+++ PTRACE/kernel/fork.c 2009-04-27 21:38:57.000000000 +0200
@@ -1027,7 +1027,6 @@ static struct task_struct *copy_process(
p->vfork_done = NULL;
spin_lock_init(&p->alloc_lock);
- clear_tsk_thread_flag(p, TIF_SIGPENDING);
init_sigpending(&p->pending);
p->utime = cputime_zero;
next reply other threads:[~2009-04-27 19:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-27 19:48 Oleg Nesterov [this message]
2009-04-28 2:39 ` [PATCH] copy_process: remove the unneeded clear_tsk_thread_flag(TIF_SIGPENDING) Roland McGrath
2009-04-28 12:47 ` Oleg Nesterov
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