linux-kernel - Re: Runtime trouble with commit dbd952127d (seccomp: introduce writer locking)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140811114822.GA2122@redhat.com>
Date:	Mon, 11 Aug 2014 13:48:23 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Guenter Roeck <linux@...ck-us.net>,
	Kees Cook <keescook@...omium.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andy Lutomirski <luto@...capital.net>
Subject: Re: Runtime trouble with commit dbd952127d (seccomp: introduce
	writer locking)

On 08/10, Linus Torvalds wrote:
>
> So that should just be converted to assert_spin_is_locked().

I still think that lockdep_assert_held() is better. Unlike
assert_spin_locked() it checks that this lock is held by us, and this
is what we want in this case.

Plus it depends on CONFIG_LOCKDEP, this is probably good too.

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/