From: Jens Axboe <axboe@kernel.dk>
To: Jan Kara <jack@suse.cz>
Cc: 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>,
Tejun Heo <tj@kernel.org>, Tahsin Erdogan <tahsin@google.com>,
Omar Sandoval <osandov@osandov.com>
Subject: Re: [PATCH 0/10 v5] block: Fix block device shutdown related races
Date: Wed, 22 Mar 2017 20:14:23 -0600 [thread overview]
Message-ID: <7a2e212e-2e44-2729-686f-20b2862880e4@kernel.dk> (raw)
In-Reply-To: <20170323003702.27571-1-jack@suse.cz>
On 03/22/2017 06:36 PM, Jan Kara wrote:
> Hello,
>
> this is a series with the remaining patches (on top of 4.11-rc2) to
> fix several different races and issues I've found when testing device
> shutdown and reuse. The first patch fixes possible (theoretical)
> problems when opening of a block device races with shutdown of a
> gendisk structure. Patches 2-8 fix oops that is triggered by
> __blkdev_put() calling inode_detach_wb() too early (the problem
> reported by Thiago). Patches 9 and 10 fix oops due to a bug in gendisk
> code where get_gendisk() can return already freed gendisk structure
> (again triggered by Omar's stress test).
>
> All patches got reviewed by Tejun and also tested by Thiago (thanks!).
> Jens, can you please queue these fixes for the next merge window?
> Thanks!
Done! Thanks a lot for working on this, Jan.
--
Jens Axboe
next prev parent reply other threads:[~2017-03-23 2:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-23 0:36 [PATCH 0/10 v5] block: Fix block device shutdown related races Jan Kara
2017-03-23 0:36 ` [PATCH 01/10] block: Fix bdi assignment to bdev inode when racing with disk delete Jan Kara
2017-03-23 0:36 ` [PATCH 02/10] bdi: Mark congested->bdi as internal Jan Kara
2017-03-23 0:36 ` [PATCH 03/10] bdi: Make wb->bdi a proper reference Jan Kara
2017-03-23 0:36 ` [PATCH 04/10] bdi: Unify bdi->wb_list handling for root wb_writeback Jan Kara
2017-03-23 0:36 ` [PATCH 05/10] bdi: Shutdown writeback on all cgwbs in cgwb_bdi_destroy() Jan Kara
2017-03-23 0:36 ` [PATCH 06/10] bdi: Do not wait for cgwbs release in bdi_unregister() Jan Kara
2017-03-23 0:36 ` [PATCH 07/10] bdi: Rename cgwb_bdi_destroy() to cgwb_bdi_unregister() Jan Kara
2017-03-23 0:37 ` [PATCH 08/10] block: Fix oops in locked_inode_to_wb_and_lock_list() Jan Kara
2017-03-23 0:37 ` [PATCH 09/10] kobject: Export kobject_get_unless_zero() Jan Kara
2017-03-23 0:37 ` [PATCH 10/10] block: Fix oops scsi_disk_get() Jan Kara
2017-03-23 2:14 ` Jens Axboe [this message]
2017-04-04 17:09 ` [PATCH 0/10 v5] block: Fix block device shutdown related races Thiago Jung Bauermann
2017-04-05 7:15 ` Jan Kara
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