From: Christoph Hellwig <hch@lst.de>
To: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-scsi@vger.kernel.org,
Vinayak Holikatti <vinholikatti@gmail.com>,
Dolev Raviv <draviv@codeaurora.org>,
Sujit Reddy Thumma <sthumma@codeaurora.org>,
Subhash Jadavani <subhashj@codeaurora.org>,
Christoph Hellwig <hch@lst.de>,
"James E.J. Bottomley" <JBottomley@parallels.com>,
Matthew Dharm <mdharm-usb@one-eyed-alien.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alan Stern <stern@rowland.harvard.edu>,
linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net
Subject: Re: [PATCH v2 0/3] scsi: ufs & ums-*: fix module reference counting
Date: Wed, 7 Jan 2015 15:28:30 +0100 [thread overview]
Message-ID: <20150107142830.GA659@lst.de> (raw)
In-Reply-To: <1420639382-2219-1-git-send-email-akinobu.mita@gmail.com>
On Wed, Jan 07, 2015 at 11:02:59PM +0900, Akinobu Mita wrote:
> While accessing a scsi_device, the use count of the underlying LLDD module
> is incremented. The module reference is retrieved through .module field of
> struct scsi_host_template.
>
> This mapping between scsi_device and underlying LLDD module works well
> except some scsi drivers (ufs and unusual usb storage drivers). These
> drivers consist with core driver and actual LLDDs, and scsi_host_template
> is defined in the core driver. So the actual LLDDs can be unloaded even if
> the scsi_device is being accessed.
Why don't ufs and usb-storage define the host templates in the sub drivers?
That's what libata or the mpt fusion driver do.
next prev parent reply other threads:[~2015-01-07 14:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-07 14:02 [PATCH v2 0/3] scsi: ufs & ums-*: fix module reference counting Akinobu Mita
2015-01-07 14:03 ` [PATCH v2 1/3] scsi: add ability to adjust module reference for scsi host Akinobu Mita
2015-01-07 14:03 ` [PATCH v2 2/3] scsi: ufs: " Akinobu Mita
2015-01-07 14:03 ` [PATCH v2 3/3] usb: storage: " Akinobu Mita
[not found] ` <1420639382-2219-4-git-send-email-akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-01-07 15:04 ` Alan Stern
2015-01-07 14:28 ` Christoph Hellwig [this message]
[not found] ` <20150107142830.GA659-jcswGhMUV9g@public.gmane.org>
2015-01-07 15:09 ` [PATCH v2 0/3] scsi: ufs & ums-*: fix module reference counting Alan Stern
2015-01-08 14:00 ` Akinobu Mita
2015-01-08 15:13 ` Alan Stern
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