From: Oleg Nesterov <oleg@redhat.com>
To: Dominique Martinet <asmadeus@codewreck.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>,
Alexander Kapshuk <alexander.kapshuk@gmail.com>,
linux-kernel@vger.kernel.org, ebiederm@xmission.com,
akpm@linux-foundation.org, liuzhiqiang26@huawei.com,
joel@joelfernandes.org, paulmck@linux.vnet.ibm.com,
kernel test robot <lkp@intel.com>
Subject: Re: [PATCH] kernel/signal.c: Export symbol __lock_task_sighand
Date: Mon, 22 Jun 2020 13:31:42 +0200 [thread overview]
Message-ID: <20200622113141.GC6516@redhat.com> (raw)
In-Reply-To: <20200622102401.GA12377@nautica>
On 06/22, Dominique Martinet wrote:
>
> What about the possibility of sighand being null that the function does
> check, is that impossible for current as well?
It is only possible if "current" has already exited and passed exit_notify(),
iow if it is already a zombie and can be (auto)reaped.
Oleg.
next prev parent reply other threads:[~2020-06-22 11:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-21 13:37 [PATCH] kernel/signal.c: Export symbol __lock_task_sighand Alexander Kapshuk
2020-06-21 13:54 ` Dominique Martinet
2020-06-22 8:39 ` Christian Brauner
2020-06-22 8:50 ` Alexander Kapshuk
2020-06-22 6:25 ` Oleg Nesterov
2020-06-22 8:39 ` Christian Brauner
2020-06-22 10:24 ` Dominique Martinet
2020-06-22 11:31 ` Oleg Nesterov [this message]
2020-06-22 11:36 ` Christian Brauner
2020-06-22 12:03 ` Oleg Nesterov
2020-06-22 12:29 ` Christian Brauner
2020-06-22 13:01 ` Oleg Nesterov
2020-06-22 13:04 ` Christian Brauner
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