On Mon, Feb 07, 2011 at 08:41:49AM -0600, James Bottomley wrote: > On Mon, 2011-02-07 at 03:53 -0800, Joel Becker wrote: > > On Mon, Feb 07, 2011 at 12:41:18PM +0100, Bart Van Assche wrote: > > > I'm still not convinced that using configfs in a storage target as the > > > only interface between kernel space and user space is a good idea. Two points here. First, a design principle of configfs is that it cannot and should not be one-stop shop for all possible userspace interaction. If there are things that fit better in sysfs, there is no reason the target code can't export them via sysfs. So any contention that we can't add other pieces of the puzzle in an attempt to shoehorn everything into configfs is sub-optimal. > I think the overall philosophical point here, and it's a good one > because I've heard it from several sources, is that it's not possible to > separate configuration from status completely. The classic example is > where the kernel has to validate and adjust config information, but the Nor should you try. You can certainly update the attributes of objects created in configfs via the kernel, and you can certainly use configfs with sysfs, ioctl, procfs, or netlink in the same subsystem. Joel -- Life's Little Instruction Book #226 "When someone hugs you, let them be the first to let go." http://www.jlbec.org/ jlbec@xxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
