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memory: unify loops to sync dirty log bitmap 

Now that memory_region_sync_dirty_bitmap is NULL, we can unify its
loop with memory_global_dirty_log_sync's.  The only difference is
that memory_region_sync_dirty_bitmap will no longer call log_sync on
FlatRanges that do have a zero dirty_log_mask, but this is okay because
video memory is always registered with the dirty page logging mechanism.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-02-06 17:55:27 +01:00
parent 0fe1eca7dc
commit 3ebb1817b3
1 changed files with 2 additions and 21 deletions
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23
memory.c
View File

@ -1990,7 +1990,7 @@ static void memory_region_sync_dirty_bitmap(MemoryRegion *mr)
as = listener->address_space;
view = address_space_get_flatview(as);
FOR_EACH_FLAT_RANGE(fr, view) {
if (fr->mr == mr) {
if (fr->dirty_log_mask && (!mr || fr->mr == mr)) {
MemoryRegionSection mrs = section_from_flat_range(fr, view);
listener->log_sync(listener, &mrs);
}
@ -2506,26 +2506,7 @@ bool memory_region_present(MemoryRegion *container, hwaddr addr)
void memory_global_dirty_log_sync(void)
{
MemoryListener *listener;
AddressSpace *as;
FlatView *view;
FlatRange *fr;
QTAILQ_FOREACH(listener, &memory_listeners, link) {
if (!listener->log_sync) {
continue;
}
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, view);
listener->log_sync(listener, &mrs);
}
}
flatview_unref(view);
}
memory_region_sync_dirty_bitmap(NULL);
}
static VMChangeStateEntry *vmstate_change;