PERFORCE change 166673 for review

[Robert Noland]

On Tue, 2009-07-28 at 10:29 +0000, Hans Petter Selasky wrote:
> http://perforce.freebsd.org/chv.cgi?CH=166673
> 
> Change 166673 by hselasky at hselasky_laptop001 on 2009/07/28 10:28:46
> 
> 	
> 	USB controller:
> 	 - allow disabling "root_mount_hold()" by setting a sysctl

Shouldn't this be a tuneable?  Possibly mirrored by a read only sysctl?

robert.

> Affected files ...
> 
> .. //depot/projects/usb/src/sys/dev/usb/controller/usb_controller.c#22 edit
> 
> Differences ...
> 
> ==== //depot/projects/usb/src/sys/dev/usb/controller/usb_controller.c#22 (text+ko) ====
> 
> @@ -79,6 +79,10 @@
>      "Debug level");
>  #endif
>  
> +static int usb_no_boot_wait = 0;
> +SYSCTL_INT(_hw_usb, OID_AUTO, no_boot_wait, CTLFLAG_RW, &usb_no_boot_wait, 0,
> +    "No device enumerate waiting at boot.");
> +
>  static uint8_t usb_post_init_called = 0;
>  
>  static devclass_t usb_devclass;
> @@ -132,8 +136,10 @@
>  		return (ENXIO);
>  	}
>  
> -	/* delay vfs_mountroot until the bus is explored */
> -	bus->bus_roothold = root_mount_hold(device_get_nameunit(dev));
> +	if (usb_no_boot_wait == 0) {
> +		/* delay vfs_mountroot until the bus is explored */
> +		bus->bus_roothold = root_mount_hold(device_get_nameunit(dev));
> +	}
>  
>  	if (usb_post_init_called) {
>  		mtx_lock(&Giant);
-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD