Hi!
> > In 2.4 they all run in interrupt or thread context IIRC.
> > Problematic is the SCSI error handling thread. It can call usb_reset_device()
> > which calls down and does allocations.
> > Does that thread also do the PF_MEMALLOC trick?
>
> In 2.4 it doesn't, which is rather surpising considering how many storage
> devices run over SCSI transports.
>
> In 2.6 it sets PF_IOTHREAD. I don't know if that subsumes the function of
> PF_MEMALLOC or not. The state of kerneldoc for much of the Linux core
> functionality is shocking.
PF_IOTHREAD is there for suspend/resume. It does not affect anything
else.
Pavel
--
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
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