From: Bart Van Assche <bvanassche@acm.org>
To: Luis Chamberlain <mcgrof@kernel.org>
Cc: axboe@kernel.dk, viro@zeniv.linux.org.uk,
gregkh@linuxfoundation.org, rostedt@goodmis.org,
mingo@redhat.com, jack@suse.cz, ming.lei@redhat.com,
nstange@suse.de, akpm@linux-foundation.org, mhocko@suse.com,
yukuai3@huawei.com, linux-block@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Omar Sandoval <osandov@fb.com>,
Hannes Reinecke <hare@suse.com>, Michal Hocko <mhocko@kernel.org>,
syzbot+603294af2d01acfdd6da@syzkaller.appspotmail.com
Subject: Re: [RFC v2 2/5] blktrace: fix debugfs use after free
Date: Sat, 11 Apr 2020 16:09:13 -0700 [thread overview]
Message-ID: <0837b27e-e07b-b61c-5842-00cdf78873ca@acm.org> (raw)
In-Reply-To: <20200410195805.GM11244@42.do-not-panic.com>
On 2020-04-10 12:58, Luis Chamberlain wrote:
> On Thu, Apr 09, 2020 at 07:52:59PM -0700, Bart Van Assche wrote:
>> On 2020-04-09 14:45, Luis Chamberlain wrote:
>>> +void blk_q_debugfs_register(struct request_queue *q)
>>> +{
>>> + q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent),
>>> + blk_debugfs_root);
>>> +}
>>> +
>>> +void blk_q_debugfs_unregister(struct request_queue *q)
>>> +{
>>> + debugfs_remove_recursive(q->debugfs_dir);
>>> + q->debugfs_dir = NULL;
>>> +}
>>
>> There are no other functions in the block layer that start with the
>> prefix blk_q_. How about changing that prefix into blk_?
>
> I the first patch already introduced blk_debugfs_register(), so I have
> now changed the above to:
>
> blk_debugfs_common_register()
> blk_debugfs_common_unregister()
>
> Let me know if something else is preferred.
I just realized that the "q" in "blk_q_" probably refers to the word
"queue"? How about renaming these funtions into
blk_queue_debugfs_register/unregister()?
Thanks,
Bart.
next prev parent reply other threads:[~2020-04-11 23:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-09 21:45 [RFC v2 0/5] blktrace: fix use after free Luis Chamberlain
2020-04-09 21:45 ` [RFC v2 1/5] block: move main block debugfs initialization to its own file Luis Chamberlain
2020-04-10 2:48 ` Bart Van Assche
2020-04-09 21:45 ` [RFC v2 2/5] blktrace: fix debugfs use after free Luis Chamberlain
2020-04-10 2:52 ` Bart Van Assche
2020-04-10 19:58 ` Luis Chamberlain
2020-04-11 23:09 ` Bart Van Assche [this message]
2020-04-14 3:32 ` Luis Chamberlain
2020-04-09 21:45 ` [RFC v2 3/5] blktrace: ref count the request_queue during ioctl Luis Chamberlain
2020-04-10 2:58 ` Bart Van Assche
2020-04-09 21:45 ` [RFC v2 4/5] mm/swapfile: refcount block and queue before using blkcg_schedule_throttle() Luis Chamberlain
2020-04-10 3:02 ` Bart Van Assche
2020-04-10 14:34 ` Luis Chamberlain
2020-04-09 21:45 ` [RFC v2 5/5] block: revert back to synchronous request_queue removal Luis Chamberlain
2020-04-10 3:12 ` Bart Van Assche
2020-04-10 14:34 ` Luis Chamberlain
2020-04-10 20:50 ` Luis Chamberlain
2020-04-10 21:27 ` Luis Chamberlain
2020-04-11 23:21 ` Bart Van Assche
2020-04-14 3:38 ` Luis Chamberlain
2020-04-10 19:37 [RFC v2 2/5] blktrace: fix debugfs use after free Markus Elfring
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