On Mon, 2007-09-17 at 21:00 +0200, Andi Kleen wrote: > > Since it's all got "__" in the front, not good to use this method all > > over .. If you just need a real spinlock best to use > > DEFINE_RAW_SPINLOCK() unless your a special situation .. > > Oopsing is a special situation. Nobody knows if all the fancy infrastructure > lurking inside the other macros still works. In the case of spinlocks, real time just differs from the mainline kernel by make a spinlock_t into a mutex .. We know that's not going to work in this situation. The rest of the debugging added to spinlocks is mostly un-changed from mainline (like lockdep is still there).. So you should be able to use a regular mainline style spinlock_t for the die_lock, even with all the debugging .. The real time spinlock macros are pretty complex , but it's mostly compile related complexity that disappears when you run the kernel. Daniel - 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
