On 06/26/2012 10:34 PM, Marcelo Tosatti wrote: > > 1. read_lock(memmap_lock) > 2. MemoryRegionSection mrs = lookup(addr) > 3. qom_ref(mrs.mr->dev) > 4. read_unlock(memmap_lock) > > 5. mutex_lock(dev->lock) > 6. dispatch(&mrs, addr, data, size) > 7. mutex_unlock(dev->lock) > > 8. qom_unref(mrs.mr->object)
The plan also includes eventually replacing read_lock() with rcu; so two devices can be accessed in parallel with no cacheline bouncing. -- error compiling committee.c: too many arguments to function
