From: Jan Kara <jack@suse.cz>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>, Tejun Heo <tj@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>,
NeilBrown <neilb@suse.de>, Jan Kara <jack@suse.cz>
Subject: [PATCH 0/10] block: Fix block device shutdown related races
Date: Thu, 9 Feb 2017 13:44:23 +0100 [thread overview]
Message-ID: <20170209124433.2626-1-jack@suse.cz> (raw)
Hello,
this patch set fixes several different races and issues I've found when testing
device shutdown and reuse. The first three patches and fixes to problems in my
previous series fixing BDI lifetime issues. Patch 4 fixes issues with reuse of
BDI name with scsi devices. With it I cannot reproduce the BDI name reuse
issues using Omar's stress test using scsi_debug so it can be used as a
replacement of Dan's patches. Patches 5-8 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).
People, please have a look at patches. The are mostly simple however the
interactions are rather complex so I may have missed something. Also I'm
happy for any additional testing these patches can get - I've stressed them
with Omar's script, tested memcg writeback, tested static (not udev managed)
device inodes.
Honza
next reply other threads:[~2017-02-09 12:44 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-09 12:44 Jan Kara [this message]
2017-02-09 12:44 ` [PATCH 01/10] block: Move bdev_unhash_inode() after invalidate_partition() Jan Kara
2017-02-12 3:58 ` Tejun Heo
2017-02-20 14:53 ` Jan Kara
2017-02-09 12:44 ` [PATCH 02/10] block: Unhash also block device inode for the whole device Jan Kara
2017-02-12 4:16 ` Tejun Heo
2017-02-09 12:44 ` [PATCH 03/10] block: Revalidate i_bdev reference in bd_aquire() Jan Kara
2017-02-09 15:54 ` Jan Kara
2017-02-12 4:22 ` Tejun Heo
2017-02-09 12:44 ` [PATCH 04/10] block: Move bdi_unregister() to del_gendisk() Jan Kara
2017-02-10 2:21 ` NeilBrown
2017-02-12 4:31 ` Tejun Heo
2017-02-09 12:44 ` [PATCH 05/10] writeback: Generalize and standardize I_SYNC waiting function Jan Kara
2017-02-12 4:32 ` Tejun Heo
2017-02-09 12:44 ` [PATCH 06/10] writeback: Move __inode_wait_for_state_bit Jan Kara
2017-02-09 12:44 ` [PATCH 07/10] writeback: Implement reliable switching to default writeback structure Jan Kara
2017-02-10 2:19 ` NeilBrown
2017-02-10 13:20 ` Jan Kara
2017-02-09 12:44 ` [PATCH 08/10] block: Fix oops in locked_inode_to_wb_and_lock_list() Jan Kara
2017-02-12 4:40 ` Tejun Heo
2017-02-20 16:58 ` Jan Kara
2017-02-09 12:44 ` [PATCH 09/10] kobject: Export kobject_get_unless_zero() Jan Kara
2017-02-12 4:41 ` Tejun Heo
2017-02-09 12:44 ` [PATCH 10/10] block: Fix oops scsi_disk_get() Jan Kara
2017-02-12 4:43 ` Tejun Heo
2017-02-09 14:52 ` [PATCH 0/10] block: Fix block device shutdown related races Thiago Jung Bauermann
2017-02-09 15:48 ` Jan Kara
2017-02-13 14:27 ` Thiago Jung Bauermann
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