From: Christoph Hellwig <hch@lst.de>
To: Hannes Reinecke <hare@suse.de>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Christoph Hellwig <hch@lst.de>,
James Bottomley <james.bottomley@hansenpartnership.com>,
linux-scsi@vger.kernel.org, Yves-Alexis Perez <corsac@debian.org>,
Hannes Reinecke <hare@suse.com>
Subject: Re: [PATCH] libsas: Check for completed commands before calling lldd_abort_task()
Date: Mon, 8 Jan 2018 12:23:48 +0100 [thread overview]
Message-ID: <20180108112348.GA7106@lst.de> (raw)
In-Reply-To: <1515408716-102111-1-git-send-email-hare@suse.de>
On Mon, Jan 08, 2018 at 11:51:56AM +0100, Hannes Reinecke wrote:
> The abort handler might be racing with command completion, so the
> task might already be NULL by the time the abort handler is called.
But without taking dev_done_lock (or using cmpxchg) what prevents
use from still hitting this, although in a more narrow window?
next prev parent reply other threads:[~2018-01-08 11:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 10:51 [PATCH] libsas: Check for completed commands before calling lldd_abort_task() Hannes Reinecke
2018-01-08 11:23 ` Christoph Hellwig [this message]
2018-01-08 11:41 ` Hannes Reinecke
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