commit 1755da16e32c15b22a521e8a38539e4b5cf367f3
author Paolo Bonzini <pbonzini@redhat.com> Thu Oct 18 16:49:18 2012 +0200
committer Kevin Wolf <kwolf@redhat.com> Wed Oct 24 10:26:19 2012 +0200
tree 5990c65a246cb189f0f44b2a7452e409fa646f56
parent 9156df12a4f3b3db63d1b292d081d814f02e311a

block: introduce new dirty bitmap functionality

Assert that write_compressed is never used with the dirty bitmap.
Setting the bits early is wrong, because a coroutine might concurrently
examine them and copy incomplete data from the source.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block.h

diff --git a/block.h b/block.h
index 096fa09..27b8f80 100644
--- a/block.h
+++ b/block.h
@@ -353,8 +353,9 @@
 
 void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable);
 int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
-void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector,
-                      int nr_sectors);
+void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
+void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
+int64_t bdrv_get_next_dirty(BlockDriverState *bs, int64_t sector);
 int64_t bdrv_get_dirty_count(BlockDriverState *bs);
 
 void bdrv_enable_copy_on_read(BlockDriverState *bs);