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Date:   Thu, 19 May 2022 12:32:55 -0400
From:   Steven Rostedt <rostedt@goodmis.org>
To:     Vasily Averin <vvs@openvz.org>
Cc:     YoPOhRctb8wwbmY5@carbon, Shakeel Butt <shakeelb@google.com>,
        Roman Gushchin <roman.gushchin@linux.dev>,
        Vlastimil Babka <vbabka@suse.cz>,
        Matthew Wilcox <willy@infradead.org>,
        Hyeonggon Yoo <42.hyeyoo@gmail.com>,
        Muchun Song <songmuchun@bytedance.com>, kernel@openvz.org,
        linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@kernel.org>,
        Christoph Lameter <cl@linux.com>,
        Michal Hocko <mhocko@suse.com>
Subject: Re: [PATCH v3] tracing: add 'accounted' entry into output of
 allocation tracepoints
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On Thu, 19 May 2022 19:29:36 +0300
Vasily Averin <vvs@openvz.org> wrote:

> Frankly speaking I vote for performance with both hands.
> However I'm still would like to avoid new sparse warnings.
> Christoph Hellwig just recently taught me, "never add '__force' before
> thinking hard about them", but in this case I would need to use it three times.
> 
> I found that bitwise typecasts can be avoided by using translation unions. 
> 
> What do you think about following trick?

It's really up to you memory management folks. Although I may need to
update libtraceevent to handle the union case. That may be a bit tricky.

-- Steve