Messages in this thread | | | Date | Sun, 11 Jan 2004 23:39:05 -0800 | From | Matthew Dharm <> | Subject | Re: [linux-usb-devel] Re: USB hangs |
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On Sun, Jan 11, 2004 at 08:11:58PM -0800, David Brownell wrote: > > >>> Plus I'd > >>>argue PF_MEMALLOC is a better solution anyway. > >> > >>It certainly seems like a more comprehensive fix for that > >>particular class of problems! :) > > > > > >Is it really more comprehensive? As I see it, it will only affect code > >executed in the context of the usb-storage thread. But, what about code > >which is invoked in tasklets or other contexts? > > Isn't it true that only that thread is allowed to > submit usb-storage i/o requests?
That's very true.
What I'm concerned about is the downstream effects of a usb_submit_urb() or the corresponding scatter-gather equivalents.
Matt
-- Matthew Dharm Home: mdharm-usb@one-eyed-alien.net Maintainer, Linux USB Mass Storage Driver
You should try to see the techs say "three piece suit". -- The Chief User Friendly, 11/23/1997 [unhandled content-type:application/pgp-signature] | |