On Mon, 17 Jan 2011 12:07:13 +0100 Peter Zijlstra <pet...@infradead.org> wrote:
> I visited existing smp_send_reschedule() implementations and tried to > add a call to scheduler_ipi() in their handler part, but esp. for MIPS > I'm not quite sure I actually got all of them. > > diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c > index 94cf510..61789e8 100644 > --- a/arch/s390/kernel/smp.c > +++ b/arch/s390/kernel/smp.c > @@ -163,12 +163,12 @@ static void do_ext_call_interrupt(unsigned int > ext_int_code, > > /* > * handle bit signal external calls > - * > - * For the ec_schedule signal we have to do nothing. All the work > - * is done automatically when we return from the interrupt. > */ > bits = xchg(&S390_lowcore.ext_call_fast, 0); > > + if (test_bit(ec_schedule, &bits)) > + scheduler_ipi(); > + > if (test_bit(ec_call_function, &bits)) > generic_smp_call_function_interrupt(); > s390 bits are fine. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. ------------------------------------------------------------------------------ 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
