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Message-ID: <20190715072648.GA1222@redhat.com>
Date: Mon, 15 Jul 2019 09:26:48 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Joel Fernandes <joel@...lfernandes.org>
Cc: "Paul E. McKenney" <paulmck@...ux.ibm.com>,
linux-kernel@...r.kernel.org,
Alexey Kuznetsov <kuznet@....inr.ac.ru>,
Bjorn Helgaas <bhelgaas@...gle.com>, Borislav Petkov <bp@...en8.de>,
c0d1n61at3@...il.com, "David S. Miller" <davem@...emloft.net>,
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>,
linux-acpi@...r.kernel.org, linux-doc@...r.kernel.org,
linux-pci@...r.kernel.org, linux-pm@...r.kernel.org,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, neilb@...e.com,
netdev@...r.kernel.org, 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 3/9] rcu/sync: Remove custom check for reader-section
On 07/12, Joel Fernandes wrote:
>
> static inline bool rcu_sync_is_idle(struct rcu_sync *rsp)
> {
> - RCU_LOCKDEP_WARN(!rcu_read_lock_held() &&
> - !rcu_read_lock_bh_held() &&
> - !rcu_read_lock_sched_held(),
> + RCU_LOCKDEP_WARN(!rcu_read_lock_any_held(),
Yes, this is what I meant.
Sorry for confusion, I should have mentioned that rcu_sync_is_idle()
was recently updated when I suggested to use the new helper.
Acked-by: Oleg Nesterov <oleg@...hat.com>
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