PF_MEMALLOC is assigned to processes by mm. If drivers prevent memory
reclaim and mm is not in control, strange hang-up or OOM Killer invocation
Signed-off-by: Martin Kepplinger <martink@xxxxxxxxx>
I use MMC cards with this change perfectly fine. As I understand it,
even *if* PF_MEMALLOC has a real reason to be here, I think it should
be very well documented.