On Mon, 2 Jul 2007, Oliver Neukum wrote:

> > Currently the number of interrupts per transfer is larger than 1.  Of 
> > course we can change that, but should we?  On small systems, saving a 
> > little CPU time by using a lot more memory is not a win.
> 
> It is the current design goal. The sg code requests an interrupt only for
> the last element of the scatter list.

That may be what it requests, but it isn't what it gets.

> > We don't need bottom halves.  Just remove the guarantee that interrupts
> > will be disabled.
> 
> OK, very well. How shall we split the audit load? I volunteer for
> drivers/usb/serial

Well, I have too many other things doing to work on it just now.  Let's 
stick it on a to-do list and come back to it later.

Alan Stern


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