From 70c8652bf3c1fea79b7b68864e86926715c49261 Mon Sep 17 00:00:00 2001 From: Peter Lieven Date: Tue, 26 Mar 2013 10:58:38 +0100 Subject: migration: do not search dirty pages in bulk stage avoid searching for dirty pages just increment the page offset. all pages are dirty anyway. Signed-off-by: Peter Lieven Reviewed-by: Eric Blake Reviewed-by: Orit Wasserman Signed-off-by: Juan Quintela --- arch_init.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch_init.c') diff --git a/arch_init.c b/arch_init.c index 3a0d02eafa..a522735dd1 100644 --- a/arch_init.c +++ b/arch_init.c @@ -340,7 +340,13 @@ 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); -- cgit v1.2.1