Re: [linux-usb-devel] [PATCH 3/4] usb: allocated usb releated dma buffer with?kmalloc_node

Oliver Neukum
2007-07-03T07:12:52Z

Am Dienstag, 3. Juli 2007 schrieb Greg KH:
> > > Ok, so two drivers might need this, but not the whole usb core, right?
> >
> > If those two drivers need the extended allocator, why not use it where
> > it is beneficial, even if the benefit is small?
>
> What is the benefit?  Speed isn't an issue here, so what is?

Speed is always an issue. Every cycle used in the kernel is lost to
user space.

Regards
Oliver