From: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
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>,
Tejun Heo <tj@kernel.org>, Tahsin Erdogan <tahsin@google.com>,
Omar Sandoval <osandov@osandov.com>,
"Lekshmi C. Pillai" <lekshmi.cpillai@in.ibm.com>
Subject: Re: [PATCH 0/10 v5] block: Fix block device shutdown related races
Date: Tue, 04 Apr 2017 14:09:51 -0300 [thread overview]
Message-ID: <1727592.C3UmHNa1QZ@morokweng> (raw)
In-Reply-To: <20170323003702.27571-1-jack@suse.cz>
Hello,
Am Donnerstag, 23. M=E4rz 2017, 01:36:52 BRT schrieb Jan Kara:
> 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 a=
nd
> 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).
>=20
> All patches got reviewed by Tejun and also tested by Thiago (thanks!). Je=
ns,
> can you please queue these fixes for the next merge window? Thanks!
Lekshmi tested these patches on top of v4.11-rc4 and they worked fine.
Sorry for the delay, it takes at least 72h of running time to be sure we're=
=20
not hitting the race condition, and I had trouble with v4.11-rc2.
=2D-=20
Thiago Jung Bauermann
IBM Linux Technology Center
next prev parent reply other threads:[~2017-04-04 17:09 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 ` [PATCH 0/10 v5] block: Fix block device shutdown related races Jens Axboe
2017-04-04 17:09 ` Thiago Jung Bauermann [this message]
2017-04-05 7:15 ` Jan Kara
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