diff options
Diffstat (limited to 'block/qcow2-bitmap.c')
| -rw-r--r-- | block/qcow2-bitmap.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c index 1f38806ca6..8c34b2aef7 100644 --- a/block/qcow2-bitmap.c +++ b/block/qcow2-bitmap.c @@ -1562,11 +1562,22 @@ void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, Qcow2Bitmap *bm; if (!bdrv_dirty_bitmap_get_persistence(bitmap) || - bdrv_dirty_bitmap_readonly(bitmap) || bdrv_dirty_bitmap_inconsistent(bitmap)) { continue; } + if (bdrv_dirty_bitmap_readonly(bitmap)) { + /* + * Store the bitmap in the associated Qcow2Bitmap so it + * can be released later + */ + bm = find_bitmap_by_name(bm_list, name); + if (bm) { + bm->dirty_bitmap = bitmap; + } + continue; + } + need_write = true; if (check_constraints_on_bitmap(bs, name, granularity, errp) < 0) { @@ -1618,7 +1629,9 @@ void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, /* allocate clusters and store bitmaps */ QSIMPLEQ_FOREACH(bm, bm_list, entry) { - if (bm->dirty_bitmap == NULL) { + BdrvDirtyBitmap *bitmap = bm->dirty_bitmap; + + if (bitmap == NULL || bdrv_dirty_bitmap_readonly(bitmap)) { continue; } @@ -1641,6 +1654,7 @@ void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, g_free(tb); } +success: if (release_stored) { QSIMPLEQ_FOREACH(bm, bm_list, entry) { if (bm->dirty_bitmap == NULL) { @@ -1651,13 +1665,14 @@ void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, } } -success: bitmap_list_free(bm_list); return; fail: QSIMPLEQ_FOREACH(bm, bm_list, entry) { - if (bm->dirty_bitmap == NULL || bm->table.offset == 0) { + if (bm->dirty_bitmap == NULL || bm->table.offset == 0 || + bdrv_dirty_bitmap_readonly(bm->dirty_bitmap)) + { continue; } |