linux-kernel - Re: Tasks RCU vs Preempt RCU

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: <20180522174711.GY3803@linux.vnet.ibm.com>
Date:   Tue, 22 May 2018 10:47:11 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Joel Fernandes <joel@...lfernandes.org>, byungchul.park@....com,
        mathieu.desnoyers@...icios.com,
        Josh Triplett <josh@...htriplett.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        linux-kernel@...r.kernel.org, kernel-team@...roid.com
Subject: Re: Tasks RCU vs Preempt RCU

On Tue, May 22, 2018 at 01:27:00PM -0400, Steven Rostedt wrote:
> On Tue, 22 May 2018 09:09:49 -0700
> "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> 
> > Just for the record, if you guys realy want to take over Tasks RCU,
> > I have no objections.  For one thing, I don't anticipate any other use
> > cases for it (famous last words!).  But you break it, you buy it!  ;-)
> 
> It really matters how much of a burden is RCU_tasks to RCU itself? If
> it causes a lot of headache for you, and it prevents you from cleaning
> up RCU or making it better, then I would be happy to take it out of RCU
> and maintain it separately myself. But if that's not the case, I'm happy
> with keeping it within the RCU umbrella. Which brings me to the
> question of what motivation does Joel have to remove it?

The burden on me from Tasks RCU has been quite light, so no need for a
change from my end.

Over to you, Joel!  ;-)

							Thanx, Paul