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From: Oleg Nesterov <oleg@redhat.com>
To: Joel Fernandes <joel@joelfernandes.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>,
	linux-kernel@vger.kernel.org,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Borislav Petkov <bp@alien8.de>,
	c0d1n61at3@gmail.com, "David S. Miller" <davem@davemloft.net>,
	edumazet@google.com,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Josh Triplett <josh@joshtriplett.org>,
	keescook@chromium.org, kernel-hardening@lists.openwall.com,
	kernel-team@android.com, Lai Jiangshan <jiangshanlai@gmail.com>,
	Len Brown <lenb@kernel.org>,
	linux-acpi@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-pci@vger.kernel.org, linux-pm@vger.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	neilb@suse.com, netdev@vger.kernel.org,
	Pavel Machek <pavel@ucw.cz>,
	peterz@infradead.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Rasmus Villemoes <rasmus.villemoes@prevas.dk>,
	rcu@vger.kernel.org, Steven Rostedt <rostedt@goodmis.org>,
	Tejun Heo <tj@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
	will@kernel.org,
	"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)"
	<x86@kernel.org>
Subject: Re: [PATCH v2 3/9] rcu/sync: Remove custom check for reader-section
Date: Mon, 15 Jul 2019 09:26:48 +0200
Message-ID: <20190715072648.GA1222@redhat.com> (raw)
In-Reply-To: <20190713031008.GA248225@google.com>

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@redhat.com>


  parent reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-12 17:00 [PATCH v2 0/9] Harden list_for_each_entry_rcu() and family Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 1/9] rcu/update: Remove useless check for debug_locks Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 2/9] rcu: Add support for consolidated-RCU reader checking Joel Fernandes (Google)
2019-07-16 18:22   ` Paul E. McKenney
2019-07-16 18:35     ` Joel Fernandes
2019-07-16 18:50       ` Paul E. McKenney
2019-07-12 17:00 ` [PATCH v2 3/9] rcu/sync: Remove custom check for reader-section Joel Fernandes (Google)
2019-07-12 21:35   ` Joel Fernandes
2019-07-12 23:32     ` Paul E. McKenney
2019-07-13  3:01       ` Joel Fernandes
2019-07-13  3:10         ` Joel Fernandes
2019-07-13  8:21           ` Paul E. McKenney
2019-07-13 13:30             ` Joel Fernandes
2019-07-13 14:41               ` Paul E. McKenney
2019-07-13 15:36                 ` Joel Fernandes
2019-07-13 15:50                   ` Paul E. McKenney
2019-07-13 16:13                     ` Joel Fernandes
2019-07-13 21:28                       ` Paul E. McKenney
2019-07-14 18:10                         ` Joel Fernandes
2019-07-14 18:38                           ` Joel Fernandes
2019-07-14 18:50                             ` Paul E. McKenney
2019-07-15  7:26           ` Oleg Nesterov [this message]
2019-07-16 18:26   ` Paul E. McKenney
2019-07-16 18:28     ` Paul E. McKenney
2019-07-12 17:00 ` [PATCH v2 4/9] ipv4: add lockdep condition to fix for_each_entry Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 5/9] driver/core: Convert to use built-in RCU list checking Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 6/9] workqueue: Convert for_each_wq to use built-in list check Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 7/9] x86/pci: Pass lockdep condition to pcm_mmcfg_list iterator Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 8/9] acpi: Use built-in RCU list checking for acpi_ioremaps list Joel Fernandes (Google)
2019-07-12 17:00 ` [PATCH v2 9/9] doc: Update documentation about list_for_each_entry_rcu Joel Fernandes (Google)

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