block/dirty-bitmap: add bdrv_dirty_bitmap_get

Add a public interface for get. While we're at it,
rename "bdrv_get_dirty_bitmap_locked" to "bdrv_dirty_bitmap_get_locked".

(There are more functions to rename to the bdrv_dirty_bitmap_VERB form,
but they will wait until the conclusion of this series.)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-11-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>

1 files changed, 12 insertions, 7 deletions

diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 7881fea684..75a5daf116 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -509,14 +509,19 @@ BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs)
 }
 
 /* Called within bdrv_dirty_bitmap_lock..unlock */
-bool bdrv_get_dirty_locked(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
-                           int64_t offset)
+bool bdrv_dirty_bitmap_get_locked(BdrvDirtyBitmap *bitmap, int64_t offset)
 {
-    if (bitmap) {
-        return hbitmap_get(bitmap->bitmap, offset);
-    } else {
-        return false;
-    }
+    return hbitmap_get(bitmap->bitmap, offset);
+}
+
+bool bdrv_dirty_bitmap_get(BdrvDirtyBitmap *bitmap, int64_t offset)
+{
+    bool ret;
+    bdrv_dirty_bitmap_lock(bitmap);
+    ret = bdrv_dirty_bitmap_get_locked(bitmap, offset);
+    bdrv_dirty_bitmap_unlock(bitmap);
+
+    return ret;
 }
 
 /**