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Date:   Mon, 20 Nov 2023 12:52:33 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc:     Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
        Waiman Long <longman@redhat.com>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, Chandan Babu R <chandan.babu@oracle.com>,
        "Darrick J . Wong" <djwong@kernel.org>, linux-xfs@vger.kernel.org,
        Mateusz Guzik <mjguzik@gmail.com>
Subject: Re: [PATCH v4 1/4] locking: Add rwsem_assert_held() and
 rwsem_assert_held_write()
Message-ID: <20231120115233.GT8262@noisy.programming.kicks-ass.net>
References: <20231117145142.2378800-1-willy@infradead.org>
 <20231117145142.2378800-2-willy@infradead.org>
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On Fri, Nov 17, 2023 at 02:51:39PM +0000, Matthew Wilcox (Oracle) wrote:
> Modelled after lockdep_assert_held() and lockdep_assert_held_write(),
> but are always active, even when lockdep is disabled.  Of course, they
> don't test that _this_ thread is the owner, but it's sufficient to catch
> many bugs and doesn't incur the same performance penalty as lockdep.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>