On Tue, May 07, 2013 at 02:00:02PM -0700, Linus Torvalds wrote: > On Tue, May 7, 2013 at 1:10 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > > > > It's obviously racy; I'm not sure if we care about that race, but if we > > do, there's about 80 drivers that need to be fixed... > > I suspect the "we don't really care" is the correct answer here. It's > not like you can really screw things up by mistake, and if you try to > screw this up on purpose, you need to be root anyway to open > /dev/watchdog etc. I'm not sure... It's obviously not a "the sky is falling" kind of thing, but in a situation when task B kills task A, then spins trying to open until open() succeeds... Hell knows; it might be triggerable by somebody not trying to trigger the race on purpose. I really don't know what does the userland side of that thing look like, thus the Cc to linux-wtchdog... -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
