Hi Benjamin * Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> [2008-07-19 08:05:30]: > > > With the original patch, the pending batch does get flushed > > in a non-preemptable region. > > I am resending the original with just adding the necesary comments. > > Your comment isn't what I meant. What I meant is that if the process > is context switched while walking the page tables, the low level powerpc > context switch code should also perform a ???__flush_tlb_pending. Sorry, I misunderstood. The powerpc context switch code does perform a __flush_tlb_pending. Here is the patch http://marc.info/?l=linux-kernel&m=119752629222720&w=2 > BTW. Is the pte_lock also not a real spinlock anymore ? That may break > other assumptions the powerpc mm code is doing. pte_lock is a not a real spinlock anymore. > This -rt stuff is just too scary, it changes some fundamental semantics > of the spinlocks. yuck. > > Ben. > > -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
