linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Luis Chamberlain <mcgrof@kernel.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jan Kara <jack@suse.cz>,
	axboe@kernel.dk, viro@zeniv.linux.org.uk, bvanassche@acm.org,
	gregkh@linuxfoundation.org, rostedt@goodmis.org,
	mingo@redhat.com, ming.lei@redhat.com, nstange@suse.de,
	akpm@linux-foundation.org, mhocko@suse.com, yukuai3@huawei.com,
	martin.petersen@oracle.com, jejb@linux.ibm.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: [PATCH v6 6/6] blktrace: fix debugfs use after free
Date: Wed, 10 Jun 2020 21:09:17 +0000	[thread overview]
Message-ID: <20200610210917.GH11244@42.do-not-panic.com> (raw)
In-Reply-To: <20200610064234.GB24975@infradead.org>

On Tue, Jun 09, 2020 at 11:42:34PM -0700, Christoph Hellwig wrote:
> On Tue, Jun 09, 2020 at 05:53:59PM +0000, Luis Chamberlain wrote:
> > > Feel free to add more comments, but please try to keep them short
> > > and crisp.  At the some point long comments really distract from what
> > > is going on.
> > 
> > Sure.
> > 
> > Come to think of it, given the above, I think we can also do way with
> > the the partition stuff too, and rely on the buts->name too. I'll try
> > this out, and test it.
> 
> Yes, the sg path should work for partitions as well.  That should not
> only simplify the code, but also the comments, we can do something like
> the full patch below (incorporating your original one). 

Indeed I ended up with something similar, will use this variation.

> This doesn't
> include the error check on the creation - I think that check probably
> is a good idea for this case based on the comments in the old patch, but
> also a separate issue that should go into another patch on top.

Makes sense.

  Luis


  reply	other threads:[~2020-06-10 21:09 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-08 17:01 [PATCH v6 0/8] block: fix blktrace " Luis Chamberlain
2020-06-08 17:01 ` [PATCH v6 1/6] block: add docs for gendisk / request_queue refcount helpers Luis Chamberlain
2020-06-08 17:01 ` [PATCH v6 2/6] block: clarify context for refcount increment helpers Luis Chamberlain
2020-06-08 17:01 ` [PATCH v6 3/6] block: revert back to synchronous request_queue removal Luis Chamberlain
2020-06-13  1:53   ` Bart Van Assche
2020-06-19 20:23     ` Luis Chamberlain
2020-06-08 17:01 ` [PATCH v6 4/6] blktrace: annotate required lock on do_blk_trace_setup() Luis Chamberlain
2020-06-09 14:18   ` Christoph Hellwig
2020-06-13  1:54   ` Bart Van Assche
2020-06-08 17:01 ` [PATCH v6 5/6] loop: be paranoid on exit and prevent new additions / removals Luis Chamberlain
2020-06-08 17:01 ` [PATCH v6 6/6] blktrace: fix debugfs use after free Luis Chamberlain
2020-06-09 15:06   ` Christoph Hellwig
2020-06-09 17:29     ` Luis Chamberlain
2020-06-09 17:32       ` Christoph Hellwig
2020-06-09 17:53         ` Luis Chamberlain
2020-06-10  6:42           ` Christoph Hellwig
2020-06-10 21:09             ` Luis Chamberlain [this message]
2020-06-10 21:52               ` Luis Chamberlain
2020-06-10 23:31                 ` Luis Chamberlain
2020-06-11  5:40                   ` Christoph Hellwig
2020-06-13  2:42   ` Bart Van Assche
2020-06-19 15:36     ` Luis Chamberlain

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200610210917.GH11244@42.do-not-panic.com \
    --to=mcgrof@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=axboe@kernel.dk \
    --cc=bvanassche@acm.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=hare@suse.com \
    --cc=hch@infradead.org \
    --cc=jack@suse.cz \
    --cc=jejb@linux.ibm.com \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=martin.petersen@oracle.com \
    --cc=mhocko@kernel.org \
    --cc=mhocko@suse.com \
    --cc=ming.lei@redhat.com \
    --cc=mingo@redhat.com \
    --cc=nstange@suse.de \
    --cc=osandov@fb.com \
    --cc=rostedt@goodmis.org \
    --cc=syzbot+603294af2d01acfdd6da@syzkaller.appspotmail.com \
    --cc=viro@zeniv.linux.org.uk \
    --cc=yukuai3@huawei.com \
    --subject='Re: [PATCH v6 6/6] blktrace: fix debugfs use after free' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).