On Thu, 2009-02-12 at 22:28 +0530, Balbir Singh wrote: > > _nort() will just turn them into NOPs in essence. > > > > The question is, are these local IRQ flags manipulations really needed > > in this code, and if yes, why? > > We needed the local IRQ flags, since these counters are updated from > page fault context and from reclaim context with lru_lock held with > IRQ's disabled. I've been thinking about replacing the spin lock with > seq lock, but have not gotten to it yet. Ah, in that case we can get away with _nort I think, as both those contexts are preemptable on -rt. -- 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
