From: Tejun Heo <tj@kernel.org>
To: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Dan Williams <dan.j.williams@intel.com>,
Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>,
Lekshmi Pillai <lekshmicpillai@in.ibm.com>,
NeilBrown <neilb@suse.de>, Omar Sandoval <osandov@osandov.com>
Subject: Re: [PATCH 01/11] block: Fix bdi assignment to bdev inode when racing with disk delete
Date: Mon, 6 Mar 2017 17:01:16 -0500 [thread overview]
Message-ID: <20170306220116.GI26127@htj.duckdns.org> (raw)
In-Reply-To: <20170306163404.1238-2-jack@suse.cz>
On Mon, Mar 06, 2017 at 05:33:54PM +0100, Jan Kara wrote:
> When disk->fops->open() in __blkdev_get() returns -ERESTARTSYS, we
> restart the process of opening the block device. However we forget to
> switch bdev->bd_bdi back to noop_backing_dev_info and as a result bdev
> inode will be pointing to a stale bdi. Fix the problem by setting
> bdev->bd_bdi later when __blkdev_get() is already guaranteed to succeed.
>
> Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Tejun Heo <tj@kernel.org>
Thanks.
--
tejun
next prev parent reply other threads:[~2017-03-06 22:01 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-06 16:33 [PATCH 0/11 v3] block: Fix block device shutdown related races Jan Kara
2017-03-06 16:33 ` [PATCH 01/11] block: Fix bdi assignment to bdev inode when racing with disk delete Jan Kara
2017-03-06 22:01 ` Tejun Heo [this message]
2017-03-07 6:47 ` Hannes Reinecke
2017-03-06 16:33 ` [PATCH 02/11] block: Fix race of bdev open with gendisk shutdown Jan Kara
2017-03-06 22:04 ` Tejun Heo
2017-03-07 11:14 ` Jan Kara
2017-03-07 19:43 ` Tejun Heo
2017-03-08 14:25 ` Jan Kara
2017-03-06 16:33 ` [PATCH 03/11] bdi: Mark congested->bdi as internal Jan Kara
2017-03-06 16:33 ` [PATCH 04/11] bdi: Make wb->bdi a proper reference Jan Kara
2017-03-06 16:33 ` [PATCH 05/11] bdi: Move removal from bdi->wb_list into wb_shutdown() Jan Kara
2017-03-06 16:33 ` [PATCH 06/11] bdi: Shutdown writeback on all cgwbs in cgwb_bdi_destroy() Jan Kara
2017-03-06 22:08 ` Tejun Heo
2017-03-06 16:34 ` [PATCH 07/11] bdi: Do not wait for cgwbs release in bdi_unregister() Jan Kara
2017-03-06 22:08 ` Tejun Heo
2017-03-06 16:34 ` [PATCH 08/11] bdi: Rename cgwb_bdi_destroy() to cgwb_bdi_unregister() Jan Kara
2017-03-06 16:34 ` [PATCH 09/11] block: Fix oops in locked_inode_to_wb_and_lock_list() Jan Kara
2017-03-06 16:34 ` [PATCH 10/11] kobject: Export kobject_get_unless_zero() Jan Kara
2017-03-06 16:34 ` [PATCH 11/11] block: Fix oops scsi_disk_get() Jan Kara
-- strict thread matches above, loose matches on Subject: below --
2017-03-13 15:13 [PATCH 0/11 v4] block: Fix block device shutdown related races Jan Kara
2017-03-13 15:14 ` [PATCH 01/11] block: Fix bdi assignment to bdev inode when racing with disk delete Jan Kara
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