From: Johannes Thumshirn <jthumshirn@suse.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>,
Johannes Thumshirn <jth@kernel.org>,
linux-scsi@vger.kernel.org, Hannes Reinecke <hare@suse.com>
Subject: Re: [PATCH] sg: reset 'res_in_use' after unlinking reserved array
Date: Mon, 24 Apr 2017 10:32:15 +0200 [thread overview]
Message-ID: <20170424083214.GA29543@linux-x5ow.site> (raw)
In-Reply-To: <1493022396-107620-1-git-send-email-hare@suse.de>
On Mon, Apr 24, 2017 at 10:26:36AM +0200, Hannes Reinecke wrote:
> Once the reserved page array is unused we can reset the
> 'res_in_use' state; here we can do a lazy update without
> holding the mutex as we only need to check against
> concurrent access, not concurrent release.
>
> Fixes: 1bc0eb0 ("scsi: sg: protect accesses to 'reserved' page array")
> Signed-off-by: Hannes Reinecke <hare@suse.com>
> ---
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
next prev parent reply other threads:[~2017-04-24 8:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-24 8:26 [PATCH] sg: reset 'res_in_use' after unlinking reserved array Hannes Reinecke
2017-04-24 8:32 ` Johannes Thumshirn [this message]
2017-04-24 15:30 ` Christoph Hellwig
2017-04-24 22:20 ` Martin K. Petersen
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