Introduce bdrv_check (Kevin Wolf)

From: Kevin Wolf <kwolf@redhat.com>

Introduce a new bdrv_check function pointer for block drivers. Modify qcow2 to
return an error status in check_refcounts(), so it can implement bdrv_check.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7214 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 14 insertions, 0 deletions

diff --git a/block.c b/block.c
index 836a6e5107..8348cf211e 100644
--- a/block.c
+++ b/block.c
@@ -506,6 +506,20 @@ void bdrv_delete(BlockDriverState *bs)
     qemu_free(bs);
 }
 
+/*
+ * Run consistency checks on an image
+ *
+ * Returns the number of errors or -errno when an internal error occurs
+ */
+int bdrv_check(BlockDriverState *bs)
+{
+    if (bs->drv->bdrv_check == NULL) {
+        return -ENOTSUP;
+    }
+
+    return bs->drv->bdrv_check(bs);
+}
+
 /* commit COW file into the raw image */
 int bdrv_commit(BlockDriverState *bs)
 {