linux-kernel - Re: [PATCH v7] seccomp, ptrace: add support for dumping seccomp filters

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Message-ID: <20151020182140.GA32087@redhat.com>
Date:	Tue, 20 Oct 2015 20:21:41 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Tycho Andersen <tycho.andersen@...onical.com>
Cc:	Kees Cook <keescook@...omium.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Will Drewry <wad@...omium.org>,
	Andy Lutomirski <luto@...capital.net>,
	Pavel Emelyanov <xemul@...allels.com>,
	"Serge E. Hallyn" <serge.hallyn@...ntu.com>,
	Daniel Borkmann <daniel@...earbox.net>,
	linux-kernel@...r.kernel.org, linux-api@...r.kernel.org
Subject: Re: [PATCH v7] seccomp, ptrace: add support for dumping seccomp
	filters

On 10/20, Tycho Andersen wrote:
>
> If we're going to
> unlock right after the checks, we probably don't need the current
> task's lock at all.

Agreed, current->signal->siglock looks unnecessary.

Oleg.

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