On Thursday 11 April 2013 16:09:16 Ming Lei wrote:
> On Thu, Apr 11, 2013 at 2:50 PM, Oliver Neukum <oli...@neukum.org> wrote:
> > On Thursday 11 April 2013 10:31:31 Ming Lei wrote:
> >
> >> 'mem_flags' isn't needed any more since we can apply allocation
> >> of GFP_NOIO automatically in resume path now, and you can always
> >> use GFP_KERNEL safely. Considered that it is a API, please don't
> >> introduce it.
> >
> > The automatic system goes a long way, but there are corner cases, for
> > example
> > work queues, which still need mem_flags.
>
> Could you explain why work queue need GFP_NOIO?
Your fix for the memory allocation depends on it happening in the same
context. If you execute code on a work queue this happens in the context
of a kernel thread.
> and the use case for
> usbnet?
Processing your response from a work queue.
Regards
Oliver
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