I am having the same issue on Fedora 24 with kernel 4.8.6. So I guess it has not been pushed there, or it does not fix anything.
It is a huge job stopper as I need to transfer many files between two USB disks.
Kwapd0 appears on top of processes after a while, and slowly degrades overall performance until I have to hard reboot the machine in the middle of some transfer.
I am having the same issue on Fedora 24 with kernel 4.8.6. So I guess it has not been pushed there, or it does not fix anything.
It is a huge job stopper as I need to transfer many files between two USB disks.
Kwapd0 appears on top of processes after a while, and slowly degrades overall performance until I have to hard reboot the machine in the middle of some transfer.