On Mon, Apr 12, 2021 at 10:17:15PM -0700, Axel Rasmussen wrote:

This patch allows shmem-backed VMAs to be registered for minor faults.
Minor faults are appropriately relayed to userspace in the fault path,
for VMAs with the relevant flag.

This commit doesn't hook up the UFFDIO_CONTINUE ioctl for shmem-backed
minor faults, though, so userspace doesn't yet have a way to resolve
such faults.

Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>

Everything looks right to me, but it'll be great if Andrea or Hugh will have a
look too.

Acked-by: Peter Xu <peterx@redhat.com>

-- 
Peter Xu