On 07/26/2012 04:14 PM, liu ping fan wrote: >> >> From the description above, I don't see why it can't be a mutex. >> > Searching in the device tree (or MemoryRegion view) can be often in > parallel, especially in mmio-dispatch code path In mmio dispatch we have a pointer to the object, we don't need to search anything. Is device tree search a hot path? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html