linux-kernel - Re: [PATCH v2 1/1] [SCSI] sg: fix race condition when do exclusive open

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Message-ID: <20130715172545.GA20517@logfs.org>
Date:	Mon, 15 Jul 2013 13:25:46 -0400
From:	Jörn Engel <joern@...fs.org>
To:	vaughan <vaughan.cao@...cle.com>
Cc:	dgilbert@...erlog.com, JBottomley@...allels.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] [SCSI] sg: fix race condition when do exclusive
 open

On Sun, 7 July 2013 01:24:44 +0800, vaughan wrote:
> 
> Do you agree that I use a per device spin_lock 'sfd_lock' to protect
> sfds list and leave sg_index_lock
> only protect the global sg device lookup? I think it's reasonable
> for concurrency.

That bit looks fine to me.  I don't think it matters much, but sure,
why not!

Jörn

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