Short summary of fixes pull:

buddy:
- stop using PAGE_SIZE

shmem-helper:
- avoid kernel panic in mmap()

tests:
- buddy: fix PAGE_SIZE dependency
-----BEGIN PGP SIGNATURE-----

iQEyBAABCgAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmZPjr0ACgkQaA3BHVML
eiOzDgf40gV/XmPjOJIO2qpoMd/45tJuTGhxpzNM3U2qHlhK6auf/nAtcHEhLi7y
htba9rGF48/RFRLN6CAWDshQU9rrZvqHZU1VAi3s8Jzqs9I9qtaYLg+gKzZCiJq7
YCDutruVXoCCZCe9pXKFURZsH2AIs6Vtkqkejk7/NuYjmWiL8YUhpEuPfDbQG8nL
ZcUbjZzotlrtsg/K/2ukUUwOQZ/RgGjAN6i1nWwWGDFp7ygSQNPQVF3l/svCFSuq
S0Sl8cSdfGNfWHAhRLMqigY6GlYQ5aW8+3b8E9wq5QlCKBz5gxJclgujIcFIR7NS
xmE+8il1cu0f3T02j05EKKHxHG23
=rIs9
-----END PGP SIGNATURE-----