diff options
Diffstat (limited to 'include/block/block_int.h')
| -rw-r--r-- | include/block/block_int.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index ae74df97ec..21cb65bd60 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -609,6 +609,11 @@ struct BlockDriverState { uint64_t write_threshold_offset; NotifierWithReturn write_threshold_notifier; + /* Writing to the list requires the BQL _and_ the dirty_bitmap_mutex. + * Reading from the list can be done with either the BQL or the + * dirty_bitmap_mutex. Modifying a bitmap requires the AioContext + * lock. */ + QemuMutex dirty_bitmap_mutex; QLIST_HEAD(, BdrvDirtyBitmap) dirty_bitmaps; /* Offset after the highest byte written to */ |