Re: [RFC PATCH 33/33] Add Xen virtual block device driver.

[Jeff Garzik <jeff@garzik.org>]

Dave Boutcher wrote:
> On Tue, 18 Jul 2006 00:00:33 -0700, Chris Wright <chrisw@sous-sol.org> said:
>> The block device frontend driver allows the kernel to access block
>> devices exported exported by a virtual machine containing a physical
>> block device driver.
> 
> First, I think this belongs in drivers/block (and the network driver
> belongs in drivers/net).  If we're going to bring xen to the party,
> lets not leave it hiding out in a corner.

Strongly agreed.


>> +static void connect(struct blkfront_info *);
>> +static void blkfront_closing(struct xenbus_device *);
>> +static int blkfront_remove(struct xenbus_device *);
>> +static int talk_to_backend(struct xenbus_device *, struct blkfront_info *);
>> +static int setup_blkring(struct xenbus_device *, struct blkfront_info *);
>> +
>> +static void kick_pending_request_queues(struct blkfront_info *);
>> +
>> +static irqreturn_t blkif_int(int irq, void *dev_id, struct pt_regs *ptregs);
>> +static void blkif_restart_queue(void *arg);
>> +static void blkif_recover(struct blkfront_info *);
>> +static void blkif_completion(struct blk_shadow *);
>> +static void blkif_free(struct blkfront_info *, int);
> 
> I'm pretty sure you can rearrange the code to get rid of the forward
> references. 

I've never thought this was useful...  If the function ordering helps 
the human...


>> +	switch (backend_state) {
>> +	case XenbusStateUnknown:
>> +	case XenbusStateInitialising:
>> +	case XenbusStateInitWait:
>> +	case XenbusStateInitialised:
>> +	case XenbusStateClosed:
> 
> This actually should get fixed elsewhere, but SillyCaps???

Agreed.