From: peterz@infradead.org
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Will Deacon <will@kernel.org>,
tglx@linutronix.de, kent.overstreet@gmail.com
Subject: Re: [PATCH] lockdep: Do no validate wait context for novalidate class
Date: Thu, 20 Aug 2020 14:38:59 +0200 [thread overview]
Message-ID: <20200820123859.GS2674@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20200820114348.giwwlbihjwpl4kxz@linutronix.de>
On Thu, Aug 20, 2020 at 01:43:48PM +0200, Sebastian Andrzej Siewior wrote:
> On 2020-08-20 13:40:36 [+0200], peterz@infradead.org wrote:
> > Anyway, all 3 users should have the same wait context, so where is the
> > actual problem?
>
> I have one in RT which is a per-CPU spinlock within local_bh_disable()
> to act as a per-CPU BLK like mainline.
Then can we get to see that code and an explanation for what the problem
is and why it is still correct?
Because as is, this patch isn't needed.
next prev parent reply other threads:[~2020-08-20 12:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 20:15 [PATCH] lockdep: Do no validate wait context for novalidate class Sebastian Andrzej Siewior
2020-08-20 9:05 ` Sebastian Andrzej Siewior
2020-08-20 11:40 ` peterz
2020-08-20 11:43 ` Sebastian Andrzej Siewior
2020-08-20 12:38 ` peterz [this message]
2020-08-20 14:05 ` Sebastian Andrzej Siewior
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