On Wed, 21 Feb 2007, Andrew Morton wrote:
> > > It seems like usb-storage and aio are completely off in the weeds.
> > > Ideas?
> >
> > It seems usb-storage should remove some kmalloc and use mempool() for
> > urb... Is someone working on this? And idea?
>
> I think Pete said that we're supposed to be using GFP_NOIO in there.
We _are_ using it.
> Not that it'll help much: the VM calls throttle_vm_writeout() for GFP_NOIO
> and GFP_NOFS allocations, which is a bug. Because if the caller holds
> locks which prevent filesystem or IO progress, we deadlock.
>
> I'll fix the VM if someone else fixes USB ;)
What else needs to be fixed?
Alan Stern
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