On Wed, Jul 31, 2013 at 2:16 AM, Stephen Boyd <sb...@codeaurora.org> wrote: > > What do you do here if jiffies aren't incrementing (i.e > interrupts are disabled). The time_before() check won't work > there and it would be nice if we were able to use this in such > situations. I think powerpc gets around this by reading the > hardware timer directly?
I believe that jiffies is always a global variable. It should behave the same on PowerPC as on other architectures. The answer to your question is that you should not use spin_event_timeout() in interrupt context, because it yields. (FYI, I'm the author of spin_event_timeout(), so please CC: me on all changes to it) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
