| Message ID | 1363956370-23681-9-git-send-email-pl@kamp.de |
|---|---|
| State | New |
| Headers | show |
On 03/22/2013 02:46 PM, Peter Lieven wrote: > avoid searching for dirty pages just increment the > page offset. all pages are dirty anyway. > > Signed-off-by: Peter Lieven <pl@kamp.de> > Reviewed-by: Eric Blake <eblake@redhat.com> > --- > arch_init.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/arch_init.c b/arch_init.c > index c34a4af..b2b932a 100644 > --- a/arch_init.c > +++ b/arch_init.c > @@ -338,7 +338,13 @@ ram_addr_t migration_bitmap_find_and_reset_dirty(MemoryRegion *mr, > unsigned long nr = base + (start >> TARGET_PAGE_BITS); > unsigned long size = base + (int128_get64(mr->size) >> TARGET_PAGE_BITS); > > - unsigned long next = find_next_bit(migration_bitmap, size, nr); > + unsigned long next; > + > + if (ram_bulk_stage && nr > base) { > + next = nr + 1; > + } else { > + next = find_next_bit(migration_bitmap, size, nr); > + } > > if (next < size) { > clear_bit(next, migration_bitmap); > Reviewed-by: Orit Wasserman <owasserm@redhat.com>
diff --git a/arch_init.c b/arch_init.c index c34a4af..b2b932a 100644 --- a/arch_init.c +++ b/arch_init.c @@ -338,7 +338,13 @@ ram_addr_t migration_bitmap_find_and_reset_dirty(MemoryRegion *mr, unsigned long nr = base + (start >> TARGET_PAGE_BITS); unsigned long size = base + (int128_get64(mr->size) >> TARGET_PAGE_BITS); - unsigned long next = find_next_bit(migration_bitmap, size, nr); + unsigned long next; + + if (ram_bulk_stage && nr > base) { + next = nr + 1; + } else { + next = find_next_bit(migration_bitmap, size, nr); + } if (next < size) { clear_bit(next, migration_bitmap);