Commit adaad61c authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

memory: optimize memory_global_dirty_log_sync 



Only return a nonzero dirty_log_mask for RAM/ROM memory regions.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 9a54635d

memory.c

+5 −3
Original line number Diff line number Diff line
@@ -1499,7 +1499,7 @@ bool memory_region_is_skip_dump(MemoryRegion *mr) 
uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr)

{

    uint8_t mask = mr->dirty_log_mask;

    if (global_dirty_log) {

    if (global_dirty_log && mr->ram_block) {

        mask |= (1 << DIRTY_MEMORY_MIGRATION);

    }

    return mask;
@@ -2171,9 +2171,11 @@ void memory_global_dirty_log_sync(void) 
        as = listener->address_space;

        view = address_space_get_flatview(as);

        FOR_EACH_FLAT_RANGE(fr, view) {

            if (fr->dirty_log_mask) {

                MemoryRegionSection mrs = section_from_flat_range(fr, as);

                listener->log_sync(listener, &mrs);

            }

        }

        flatview_unref(view);

    }

}