diff options
Diffstat (limited to 'block/dirty-bitmap.c')
| -rw-r--r-- | block/dirty-bitmap.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index b2ca78b4d0..543bddb9b5 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -356,15 +356,20 @@ void bdrv_dirty_bitmap_truncate(BlockDriverState *bs) bdrv_dirty_bitmaps_unlock(bs); } +static bool bdrv_dirty_bitmap_has_name(BdrvDirtyBitmap *bitmap) +{ + return !!bdrv_dirty_bitmap_name(bitmap); +} + /* Called with BQL taken. */ -static void bdrv_do_release_matching_dirty_bitmap(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, - bool only_named) +static void bdrv_do_release_matching_dirty_bitmap( + BlockDriverState *bs, BdrvDirtyBitmap *bitmap, + bool (*cond)(BdrvDirtyBitmap *bitmap)) { BdrvDirtyBitmap *bm, *next; bdrv_dirty_bitmaps_lock(bs); QLIST_FOREACH_SAFE(bm, &bs->dirty_bitmaps, list, next) { - if ((!bitmap || bm == bitmap) && (!only_named || bm->name)) { + if ((!bitmap || bm == bitmap) && (!cond || cond(bm))) { assert(!bm->active_iterators); assert(!bdrv_dirty_bitmap_frozen(bm)); assert(!bm->meta); @@ -389,7 +394,7 @@ out: /* Called with BQL taken. */ void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap) { - bdrv_do_release_matching_dirty_bitmap(bs, bitmap, false); + bdrv_do_release_matching_dirty_bitmap(bs, bitmap, NULL); } /** @@ -400,7 +405,19 @@ void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap) */ void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs) { - bdrv_do_release_matching_dirty_bitmap(bs, NULL, true); + bdrv_do_release_matching_dirty_bitmap(bs, NULL, bdrv_dirty_bitmap_has_name); +} + +/** + * Release all persistent dirty bitmaps attached to a BDS (for use in + * bdrv_inactivate_recurse()). + * There must not be any frozen bitmaps attached. + * This function does not remove persistent bitmaps from the storage. + */ +void bdrv_release_persistent_dirty_bitmaps(BlockDriverState *bs) +{ + bdrv_do_release_matching_dirty_bitmap(bs, NULL, + bdrv_dirty_bitmap_get_persistance); } /** |