Messages in this thread | | | Date | Fri, 16 Jan 2004 14:14:46 +0100 | From | Pavel Machek <> | Subject | Re: [linux-usb-devel] Re: USB hangs |
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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?] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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