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Message-ID: <20190716185001.GL14271@linux.ibm.com>
Date: Tue, 16 Jul 2019 11:50:01 -0700
From: "Paul E. McKenney" <paulmck@...ux.ibm.com>
To: Joel Fernandes <joel@...lfernandes.org>
Cc: linux-kernel@...r.kernel.org, Alexey Kuznetsov <kuznet@....inr.ac.ru>,
Bjorn Helgaas <bhelgaas@...gle.com>, Borislav Petkov <bp@...en8.de>,
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edumazet@...gle.com, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
Jonathan Corbet <corbet@....net>,
Josh Triplett <josh@...htriplett.org>, keescook@...omium.org,
kernel-hardening@...ts.openwall.com, kernel-team@...roid.com,
Lai Jiangshan <jiangshanlai@...il.com>, Len Brown <lenb@...nel.org>,
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Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, neilb@...e.com,
netdev@...r.kernel.org, Oleg Nesterov <oleg@...hat.com>,
Pavel Machek <pavel@....cz>, peterz@...radead.org,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Rasmus Villemoes <rasmus.villemoes@...vas.dk>, rcu@...r.kernel.org,
Steven Rostedt <rostedt@...dmis.org>, Tejun Heo <tj@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>, will@...nel.org,
"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>
Subject: Re: [PATCH v2 2/9] rcu: Add support for consolidated-RCU reader
checking
On Tue, Jul 16, 2019 at 02:35:17PM -0400, Joel Fernandes wrote:
> On Tue, Jul 16, 2019 at 11:22:37AM -0700, Paul E. McKenney wrote:
> > On Fri, Jul 12, 2019 at 01:00:17PM -0400, Joel Fernandes (Google) wrote:
> > > This patch adds support for checking RCU reader sections in list
> > > traversal macros. Optionally, if the list macro is called under SRCU or
> > > other lock/mutex protection, then appropriate lockdep expressions can be
> > > passed to make the checks pass.
> > >
> > > Existing list_for_each_entry_rcu() invocations don't need to pass the
> > > optional fourth argument (cond) unless they are under some non-RCU
> > > protection and needs to make lockdep check pass.
> > >
> > > Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
> >
> > If you fold in the checks for extra parameters, I will take this
> > one and also 1/9.
>
> I folded the checks in and also threw in the rcu-sync with Oleg's ack:
>
> Could you pull into /dev branch?
>
> git pull https://github.com/joelagnel/linux-kernel.git list-first-three
> (Based on your dev branch)
Given that I am going to have to rebase these a few times, please
email a v4.
Thanx, Paul
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