Am 03.04.2012 10:38, schrieb Lai Jiangshan: > If the child wake up someone, process them. > > It would the child complete its works if woken coroutine release the locks > that the child needs. > > It may help for the cache, if the child wake up some someone, they are > probably accessing the same data. > > Signed-off-by: Lai Jiangshan <la...@cn.fujitsu.com>
Are you very sure that this is correct, particularly with respect to reentrancy of nested coroutines? This is why this has become a bottom half in the first place (instead of directly reentering the unlocked coroutine in qemu_co_mutex_unlock), and it's not completely clear to me if the problem doesn't exist when you do it after a coroutine has exited instead of in an BH. I'd be very careful with such changes. Kevin
