From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Waiman Long <longman@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Will Deacon <will.deacon@arm.com>,
Boqun Feng <boqun.feng@gmail.com>,
linux-kernel@vger.kernel.org, Guenter Roeck <linux@roeck-us.net>
Subject: Re: [PATCH] locking/lockdep: Enforce PROVE_RAW_LOCK_NESTING only if ARCH_SUPPORTS_RT
Date: Wed, 27 Nov 2024 17:44:42 +0100 [thread overview]
Message-ID: <20241127164442.catRG_Aw@linutronix.de> (raw)
In-Reply-To: <20241126231154.29151-1-longman@redhat.com>
On 2024-11-26 18:11:54 [-0500], Waiman Long wrote:
> Relax the rule to set PROVE_RAW_LOCK_NESTING by default only for arches
> that supports PREEMPT_RT. For arches that do not support PREEMPT_RT,
> they will not be forced to address irrelevant raw lock nesting issues
> when they want to enable PROVE_LOCKING.
I don't like the wording here. It is not "irrelevant raw lock nesting
issues". This is documented in Documentation/locking/locktypes.rst.
*IFF* we agree to ignore those because we don't want PREEMPT_RT on
certain architectures then okay. But please don't describe it as
irrelevant.
Sebastian
next prev parent reply other threads:[~2024-11-27 16:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-26 23:11 [PATCH] locking/lockdep: Enforce PROVE_RAW_LOCK_NESTING only if ARCH_SUPPORTS_RT Waiman Long
2024-11-27 16:44 ` Sebastian Andrzej Siewior [this message]
2024-11-28 0:00 ` Waiman Long
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