Extract the gmem function declarations out of kvm_mm.h and into a dedicated
header, guest_memfd.h. This will allow creating a MAINTAINERS entry for
guest_memfd without having to rely on content pattern matching.
Reviewed-by: Ackerley Tng <ackerleytng@google.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Link: https://patch.msgid.link/20260731173842.2649391-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
