On Tue, 13 Nov 2001, Brian Ristuccia wrote:
> I can't seem to adjust the elevator parameters for this block device, but
> can't:
> # elvtune /dev/rd/disc0/disc
> ioctl get: Invalid argument
DAC960.c doesn't know about BLKELVSET / BLKELVGET, and control is
only passed down to the generic ioctl in the case of BLKBSZSET,
and doesn't have a default: entry in the switch statement of
DAC960_IOCTL()
I've not seen one of these devices, so I'm not sure if this makes
sense or not, but passing on requests to the lower level should
be a simple..
default:
return( blk_ioctl(Inode->i_rdev, Request, Argument));
Addition.
There may be other reasons this driver doesn't provide the
elevator ioctls though.
regards,
Dave.
-- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Nov 15 2001 - 21:00:36 EST