On Tue, 2011-01-18 at 07:31 +1100, Benjamin Herrenschmidt wrote: > > Beware of false positive, I've used "fake" reschedule IPIs in the past > for other things (like kicking a CPU out of sleep state for unrelated > reasons). Nothing that I know that is upstream today but some of that > might come back. I'd like to avoid having to add an atomic to know if > it's a real reschedule, will the scheduler be smart enough to not bother > with false positives ?
Yes it can deal with that, some will be for reschedules, some will be for ttwu tail ends and x86 too uses this ipi for a few random other things like kicking kvm out of guest context.. ------------------------------------------------------------------------------ Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
