linux-kernel - Re: [PATCH 00/40] Staging: hv: Driver cleanup

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Message-ID: <20110630193346.GA22707@infradead.org>
Date:	Thu, 30 Jun 2011 15:33:46 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	gregkh@...e.de, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, virtualization@...ts.osdl.org
Subject: Re: [PATCH 00/40] Staging: hv: Driver cleanup

On Wed, Jun 29, 2011 at 07:38:21AM -0700, K. Y. Srinivasan wrote:
> Further cleanup of the hv drivers:
> 
> 	1) Cleanup the reference counting mess for both stor and net devices.

I really don't understand the need for reference counting on the storage
side, especially now that you only have a SCSI driver.  The SCSI
midlayer does proper counting on it's objects (Scsi_Host, scsi_device,
scsi_cmnd), so you'll get that for free given that SCSI drivers just
piggyback on the midlayer lifetime rules.

For now your patches should probably go in as-is, but mid-term you
should be able to completely remove that code on the storage side.

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