Rename __flush_tlb*() to local_flush_tlb*() as it's more appropriate, and ready
to differentiate local from global TLB flushes when SMP is introduced.
Whilst we're at it, get rid of __flush_tlb_global() and make
local_flush_tlb_page() take an mm_struct pointer rather than VMA pointer.
Signed-off-by: David Howells <dhowells@redhat.com>
Makes code futureproof against the impending change to mm->cpu_vm_mask
(to be a pointer).
It's also a chance to use the new cpumask_ ops which take a pointer
(the older ones are deprecated, but there's no hurry for arch code).
Also change the actual arg name here to "mm" (which it is), not "task".
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>