linux-kernel - Re: [RFC 0/3] block: address blktrace use-after-free

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Date:   Fri, 3 Apr 2020 07:13:47 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Ming Lei <ming.lei@...hat.com>,
        Luis Chamberlain <mcgrof@...nel.org>
Cc:     axboe@...nel.dk, viro@...iv.linux.org.uk,
        gregkh@...uxfoundation.org, rostedt@...dmis.org, mingo@...hat.com,
        jack@...e.cz, nstange@...e.de, mhocko@...e.com,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, yukuai3@...wei.com
Subject: Re: [RFC 0/3] block: address blktrace use-after-free

On 2020-04-03 01:19, Ming Lei wrote:
> BTW, Yu Kuai posted one patch for this issue, looks that approach
> is simpler:
> 
> https://lore.kernel.org/linux-block/20200324132315.22133-1-yukuai3@huawei.com/

That approach is indeed simpler but at the expense of performing dynamic
memory allocation in a cleanup path, something I'm not enthusiast about.

Bart.