linux-kernel - Re: [PATCH] sched/deadline: No need to check NULL later

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20160401112919.GP3430@twins.programming.kicks-ass.net>
Date:	Fri, 1 Apr 2016 13:29:19 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Xunlei Pang <xlpang@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Juri Lelli <juri.lelli@....com>,
	Ingo Molnar <mingo@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH] sched/deadline: No need to check NULL later_mask

On Fri, Apr 01, 2016 at 07:13:18PM +0800, Xunlei Pang wrote:
> Unlike rt tasks, we (should) have no deadline tasks in
> booting phase before the mask is allocated, so we can
> safely remove the check.

Why? And have the kernel explode once it grows an early deadline task?

Is there _any_ benefit to this?