X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=block.c;h=9549b9eff9f3034fdfae86e239851db459b9c0da;hb=021a1318604e0898cee3800d5b13033e68191f4e;hp=24a25d569be8149f10b153e4fdbbc7c21b1c2f21;hpb=924f766af9be3ff036a419fc85ed740aa01f8eac;p=qemu.git

diff --git a/block.c b/block.c
index 24a25d569..9549b9eff 100644
--- a/block.c
+++ b/block.c
@@ -1146,6 +1146,25 @@ int bdrv_truncate(BlockDriverState *bs, int64_t offset)
     return ret;
 }
 
+/**
+ * Length of a allocated file in bytes. Sparse files are counted by actual
+ * allocated space. Return < 0 if error or unknown.
+ */
+int64_t bdrv_get_allocated_file_size(BlockDriverState *bs)
+{
+    BlockDriver *drv = bs->drv;
+    if (!drv) {
+        return -ENOMEDIUM;
+    }
+    if (drv->bdrv_get_allocated_file_size) {
+        return drv->bdrv_get_allocated_file_size(bs);
+    }
+    if (bs->file) {
+        return bdrv_get_allocated_file_size(bs->file);
+    }
+    return -ENOTSUP;
+}
+
 /**
  * Length of a file in bytes. Return < 0 if error or unknown.
  */