From: Christoph Hellwig <hch@lst.de>
To: linux-scsi@vger.kernel.org
Cc: Torsten Luettgert <ml-lkml@enda.eu>,
Bernd Kardatzki <Bernd.Kardatzki@med.uni-tuebingen.de>
Subject: fix command completion races in the 3ware drivers
Date: Thu, 23 Apr 2015 09:48:48 +0200 [thread overview]
Message-ID: <1429775331-1017-1-git-send-email-hch@lst.de> (raw)
All three 3ware drivers complete the scsi command before calling
scsi_dma_unmap. This is racy as the command can get torn down
once ->scsi_done has been called, but until 3.17 we papered
over this by taking the host lock in the completion pass, which
masked out this race for all common workloads.
next reply other threads:[~2015-04-23 7:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-23 7:48 Christoph Hellwig [this message]
2015-04-23 7:48 ` [PATCH 1/3] 3w-sas: fix command completion race Christoph Hellwig
2015-04-23 17:55 ` adam radford
2015-04-23 7:48 ` [PATCH 2/3] 3w-xxxx: " Christoph Hellwig
2015-04-23 17:56 ` adam radford
2015-04-23 7:48 ` [PATCH 3/3] 3w-9xxx: " Christoph Hellwig
2015-04-23 17:56 ` adam radford
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