From: Tejun Heo <tj@kernel.org>
To: Jens Axboe <jaxboe@fusionio.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kay.sievers@vrfy.org" <kay.sievers@vrfy.org>,
"hch@infradead.org" <hch@infradead.org>
Subject: Re: block: Fix oops caused by __blkdev_get() calling disk_unblock_events() with invalid @disk
Date: Wed, 9 Mar 2011 19:59:09 +0100 [thread overview]
Message-ID: <20110309185909.GA13729@mtj.dyndns.org> (raw)
In-Reply-To: <4D77C664.3080803@fusionio.com>
On Wed, Mar 09, 2011 at 07:26:44PM +0100, Jens Axboe wrote:
> > This is fixed by moving reference putting after open success is
> > determined and not clearing @disk to %NULL. On success, @disk is
> > valid because there is another opener holding reference to it. On
> > failure, the references are put after disk_unblock_events() is
> > called.
>
> Thanks, applied. A bit unfortunate to have a 100% crasher in the tree,
> though. Will suck for bisects.
Yeah, that does suck. I folded in the fix to the offending commit and
regenerated the tree in case you want to rebase the tree.
ssh://master.kernel.org/pub/scm/linux/kernel/git/tj/misc.git disk-event-convert-fixed
Thank you.
--
tejun
next prev parent reply other threads:[~2011-03-09 18:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-09 9:13 [PATCHSET] block: Convert block drivers to ->check_events(), take#2 Tejun Heo
2011-03-09 9:13 ` [PATCH 01/16] block: Don't implicitly trigger event check on disk_unblock_events() Tejun Heo
2011-03-09 9:13 ` [PATCH 02/16] block: Don't check events on close unless it was blocked Tejun Heo
2011-03-09 9:13 ` [PATCH 03/16] block: Don't check events while open is in progress Tejun Heo
2011-03-09 9:13 ` [PATCH 04/16] ide: Convert to bdops->check_events() Tejun Heo
2011-03-09 22:17 ` David Miller
2011-03-09 9:13 ` [PATCH 05/16] floppy,{ami|ata}flop: " Tejun Heo
2011-03-09 9:13 ` [PATCH 06/16] gdrom,viocd: " Tejun Heo
2011-03-09 9:13 ` [PATCH 07/16] paride: " Tejun Heo
2011-03-09 9:13 ` [PATCH 08/16] dac960: " Tejun Heo
2011-03-09 9:13 ` [PATCH 09/16] swim[3]: " Tejun Heo
2011-03-10 0:10 ` Benjamin Herrenschmidt
2011-03-09 9:13 ` [PATCH 10/16] ub: " Tejun Heo
2011-03-09 16:46 ` Pete Zaitcev
2011-03-09 16:58 ` Tejun Heo
2011-03-09 9:13 ` [PATCH 11/16] xsysace: " Tejun Heo
2011-03-09 9:13 ` [PATCH 12/16] i2o_block: " Tejun Heo
2011-03-09 9:13 ` [PATCH 13/16] s390/tape_block: " Tejun Heo
2011-03-09 9:13 ` [PATCH 14/16] umem: Drop dummy ->media_changed() Tejun Heo
2011-03-09 9:13 ` [PATCH 15/16] pktcdvd: Convert to bdops->check_events() Tejun Heo
2011-03-09 9:13 ` [PATCH 16/16] staging: " Tejun Heo
2011-03-09 9:20 ` [PATCHSET] block: Convert block drivers to ->check_events(), take#2 Jens Axboe
2011-03-09 14:49 ` Jens Axboe
2011-03-09 15:38 ` block: Fix oops caused by __blkdev_get() calling disk_unblock_events() with invalid @disk Tejun Heo
2011-03-09 18:26 ` Jens Axboe
2011-03-09 18:59 ` Tejun Heo [this message]
2011-03-09 19:16 ` Jens Axboe
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=20110309185909.GA13729@mtj.dyndns.org \
--to=tj@kernel.org \
--cc=hch@infradead.org \
--cc=jaxboe@fusionio.com \
--cc=kay.sievers@vrfy.org \
--cc=linux-kernel@vger.kernel.org \
/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
Powered by JetHome