From: Greg KH <gregkh@suse.de>
To: KY Srinivasan <kys@microsoft.com>
Cc: Greg KH <greg@kroah.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"virtualization@lists.osdl.org" <virtualization@lists.osdl.org>,
Haiyang Zhang <haiyangz@microsoft.com>
Subject: Re: [PATCH 18/25] Staging: hv: storvsc: Eliminate the usage of ext field in struct hv_device
Date: Sat, 10 Sep 2011 20:28:31 +0200 [thread overview]
Message-ID: <20110910182831.GA30865@suse.de> (raw)
In-Reply-To: <6E21E5352C11B742B20C142EB499E048081DC4A1@TK5EX14MBXC128.redmond.corp.microsoft.com>
On Sat, Sep 10, 2011 at 02:16:14PM +0000, KY Srinivasan wrote:
>
>
> > -----Original Message-----
> > From: Greg KH [mailto:greg@kroah.com]
> > Sent: Friday, September 09, 2011 4:45 PM
> > To: KY Srinivasan
> > Cc: gregkh@suse.de; linux-kernel@vger.kernel.org;
> > devel@linuxdriverproject.org; virtualization@lists.osdl.org; Haiyang Zhang
> > Subject: Re: [PATCH 18/25] Staging: hv: storvsc: Eliminate the usage of ext field in
> > struct hv_device
> >
> > On Thu, Sep 08, 2011 at 07:24:29AM -0700, K. Y. Srinivasan wrote:
> > > Now, eliminate the usage of ext field in struct hv_device for storvsc driver.
> > > We do this by registering pointer to struct storvsc_device as the driver
> > > specific data and eliminating the current usage of driver specific data to
> > > save and retrieve the pointer to struct Scsi_Host.
> > > Additionally, all access to the driver specific data is through
> > > the vmbus wrapper functions.
> > >
> > > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
> > > Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
> > > ---
> > > drivers/staging/hv/storvsc_drv.c | 24 +++++++++++++++---------
> > > 1 files changed, 15 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
> > > index 57c1035..98d47cd 100644
> > > --- a/drivers/staging/hv/storvsc_drv.c
> > > +++ b/drivers/staging/hv/storvsc_drv.c
> > > @@ -266,6 +266,7 @@ struct storvsc_device {
> > > bool destroy;
> > > bool drain_notify;
> > > atomic_t num_outstanding_req;
> > > + struct Scsi_Host *host;
> >
> > You are properly reference counting this pointer, right?
>
> The scsi_host_alloc() which we use to allocate the host structure, gives us
> the needed reference.
Ok, thanks, I missed that. The casting though should be taken out,
otherwise the janitor project will just come along and clean it up
again...
greg k-h
next prev parent reply other threads:[~2011-09-10 18:28 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-08 14:24 [PATCH 0000/0025] Staging: hv: Driver cleanup K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 01/25] Staging: hv: vmbus: Rename vmbus_child_device_create K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 02/25] Staging: hv: vmbus: Rename vmbus_child_device_register K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 03/25] Staging: hv: vmbus: Rename vmbus_child_device_unregister K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 04/25] Staging: hv: vmbus: Cleanup dated comments in channel_mgmt.c K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 05/25] Staging: hv: vmbus: Change the signature of struct hv_driver probe function K. Y. Srinivasan
2011-09-09 20:38 ` Greg KH
2011-09-08 14:24 ` [PATCH 06/25] Staging: hv: storvsc: Use the driver_data to identify ide K. Y. Srinivasan
2011-09-09 20:41 ` Greg KH
2011-09-08 14:24 ` [PATCH 07/25] Staging: hv: vmbus: Change the signature of struct hv_driver remove() function K. Y. Srinivasan
2011-09-09 20:40 ` Greg KH
2011-09-08 14:24 ` [PATCH 08/25] Staging: hv: util: Perform some service specific initialization in util_probe() K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 09/25] Staging: hv: util: Perform some service specific de-initialization in util_remove() K. Y. Srinivasan
2011-09-09 20:42 ` Greg KH
2011-09-10 14:31 ` KY Srinivasan
2011-09-10 18:35 ` Greg KH
2011-09-08 14:24 ` [PATCH 10/25] Staging: hv: vmbus: Return proper error code in vmbus_remove() K. Y. Srinivasan
2011-09-09 20:43 ` Greg KH
2011-09-10 14:22 ` KY Srinivasan
2011-09-10 18:33 ` Greg KH
2011-09-10 20:33 ` KY Srinivasan
2011-09-08 14:24 ` [PATCH 11/25] Staging: hv: util: Properly handle util services in the util driver K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 12/25] Staging: hv: vmbus: Get rid of hv_cb_utils[] and other unneeded code K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 13/25] Staging: hv: vmbus: Get rid of the module dependency K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 14/25] Staging: hv: vmbus: Introduce functions for setting and getting driver data K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 15/25] Staging: hv: storvsc: Get rid of storvsc_dev_add() by inlining the code K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 16/25] Staging: hv: storvsc: Get rid of alloc_stor_device() " K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 17/25] Staging: hv: storvsc: Get rid of some unnecessary state and definitions K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 18/25] Staging: hv: storvsc: Eliminate the usage of ext field in struct hv_device K. Y. Srinivasan
2011-09-09 20:44 ` Greg KH
2011-09-10 14:16 ` KY Srinivasan
2011-09-10 18:28 ` Greg KH [this message]
2011-09-08 14:24 ` [PATCH 19/25] Staging: hv: netvsc: Get rid of the usage of the " K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 20/25] Staging: hv: mousevsc: " K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 21/25] Staging: hv: vmbus: Get rid " K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 22/25] Staging: hv: vmbus: Do not allocate struct hv_device_info on the stack K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 23/25] Staging: hv: netvsc: Rename netDevice as net_device K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 24/25] Staging: hv: netvsc: Rename rndisDevice to rndis_device K. Y. Srinivasan
2011-09-08 14:24 ` [PATCH 25/25] Staging: hv: netvsc: Rename deviceInfo as device_info K. Y. Srinivasan
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