On Thu, Jan 05, 2023 at 01:45:23PM +0100, David Hildenbrand wrote: > Playing with background snapshots in combination with hugetlb and > virtio-mem, I found two issues and some reasonable optimizations (skip > unprotecting when unregistering). > > With virtio-mem (RamDiscardManager), we now won't be allocating unnecessary > page tables for unplugged ranges when using uffd-wp with shmem/hugetlb. > > Cc: Juan Quintela <quint...@redhat.com> (maintainer:Migration) > Cc: "Dr. David Alan Gilbert" <dgilb...@redhat.com> (maintainer:Migration) > Cc: Peter Xu <pet...@redhat.com> > Cc: Andrey Gruzdev <andrey.gruz...@virtuozzo.com> > > David Hildenbrand (5): > migration/ram: Fix populate_read_range() > migration/ram: Fix error handling in ram_write_tracking_start() > migration/ram: Don't explicitly unprotect when unregistering uffd-wp > migration/ram: Rely on used_length for uffd_change_protection() > migration/ram: Optimize ram_write_tracking_start() for > RamDiscardManager
For the series: Acked-by: Peter Xu <pet...@redhat.com> Thanks, -- Peter Xu
