linux-fsdevel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Christoph Hellwig <hch@infradead.org>
To: Miklos Szeredi <mszeredi@redhat.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] bad_inode: add missing i_op initializers
Date: Mon, 7 Nov 2016 07:01:47 -0800	[thread overview]
Message-ID: <20161107150147.GB17451@infradead.org> (raw)
In-Reply-To: <1478510181-4242-1-git-send-email-mszeredi@redhat.com>

On Mon, Nov 07, 2016 at 10:16:21AM +0100, Miklos Szeredi wrote:
> New inode operations were forgotten to be added to bad_inode.  Most of the
> time the op is checked for NULL before being called but marking the inode
> bad and the check can race (very unlikely).
> 
> However in case of ->get_link() only DCACHE_SYMLINK_TYPE is checked before
> calling the op, so there's no race and will definitely oops when trying to
> follow links on such a beast.
> 
> Also remove comments about extinct ops.

Can someone come up with some BUILD_BUG_ON magic to catch issues like
this?

      reply	other threads:[~2016-11-07 15:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-07  9:16 [PATCH] bad_inode: add missing i_op initializers Miklos Szeredi
2016-11-07 15:01 ` Christoph Hellwig [this message]

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=20161107150147.GB17451@infradead.org \
    --to=hch@infradead.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mszeredi@redhat.com \
    --cc=viro@ZenIV.linux.org.uk \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
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).