Messages in this thread |  | | | Date | Wed, 22 May 2002 01:06:08 -0700 (PDT) | | From | David Lang <> | | Subject | Re: Linux-2.5.17 |
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what about SMP where you may have multiple children hit this at the same time on different CPUs?
David Lang
On Tue, 21 May 2002, Linus Torvalds wrote: > - if there is no process on th erun-queue, take our parent > > The "parent" fallback is nice because (a) we're guaranteed to have a > parent and it is easily found and (b) we're going to wake our parent up > soon enough in "notify_parent()", so if the current runqueue is empty, the > parent is one of the likelier processes to end up there.. > > But no, I've not looked into the details. We've never stolen a mm from > anybody else before (lazy TLB _gives_ a mm to the next process, it doesn't > take it from anybody), so it might have nasty locking issues or something. > > Linus - 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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