I think the simplest solution may be to leave slub as done in the patch that we developed last week. The arch must provide a cmpxchg_local that is performance wise the fastest possible. On x86 this is going to be the cmpxchg_local on others where cmpxchg is slower than interrupt disable/enable this is going to be the emulation that does
interrupt disable cmpchg simulation interrupt enable If we can establish that this is not a performance regression then we have a clean solution source code wise. It also minimizes the interrupt holdoff for the non-cmpxchg_local arches. However, it means that we will have to disable interrupts twice for the slow path. If that is too expensive then we need a different solution. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
