Hopefully not "primary" for long. These are just the first uses I saw to immediately convert to siphash with the least amount of controversy to actually get sip

Hopefully not "primary" for long. These are just the first uses I saw to immediately convert to siphash with the least amount of controversy to actually get siphash in the kernel. Now that these have landed, other developers can gradually start using it in more and more places. Who knows what the "primary" use will be after 4.11.