linux-kernel - Re: [PATCH 4/4] mm/vmap: move BUG_ON() check to the unlink

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Message-Id: <20190522111916.b99a18d67bc76f7cf207d9e6@linux-foundation.org>
Date:   Wed, 22 May 2019 11:19:16 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     "Uladzislau Rezki (Sony)" <urezki@...il.com>
Cc:     Roman Gushchin <guro@...com>, Michal Hocko <mhocko@...e.com>,
        Matthew Wilcox <willy@...radead.org>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>,
        Thomas Garnier <thgarnie@...gle.com>,
        Oleksiy Avramchenko <oleksiy.avramchenko@...ymobile.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Joel Fernandes <joelaf@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...e.hu>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 4/4] mm/vmap: move BUG_ON() check to the unlink_va()

On Wed, 22 May 2019 17:09:39 +0200 "Uladzislau Rezki (Sony)" <urezki@...il.com> wrote:

> Move the BUG_ON()/RB_EMPTY_NODE() check under unlink_va()
> function, it means if an empty node gets freed it is a BUG
> thus is considered as faulty behaviour.

So... this is an expansion of the assertion's coverage?