On Wed, Jul 31, 2013 at 2:16 AM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> 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-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
