From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v3 3/6] uas: make work list per-device
Date: Tue, 17 Sep 2013 13:30:12 -0700
Message-ID: <20130917203012.GA1752@infradead.org>
References: <1379071635-30701-1-git-send-email-kraxel@redhat.com>
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To: Gerd Hoffmann <kraxel@redhat.com>
Cc: linux-usb@vger.kernel.org, Matthew Wilcox <willy@linux.intel.com>, Sarah Sharp <sarah.a.sharp@linux.intel.com>, Matthew Dharm <mdharm-usb@one-eyed-alien.net>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "open list:USB ATTACHED SCSI" <linux-scsi@vger.kernel.org>, "open list:USB MASS STORAGE..." <usb-storage@lists.one-eyed-alien.net>, open list <linux-kernel@vger.kernel.org>
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On Fri, Sep 13, 2013 at 01:27:12PM +0200, Gerd Hoffmann wrote:
> Simplifies locking, we'll protect the list with the device spin lock.
> Also plugs races which can happen when two devices operate on the
> global list.
> 
> While being at it rename the list head from "list" to "work", preparing
> for the addition of a second list.

Why do you even the list?  What would a ordered per-device workqueue not
provide?