spapr-pci: fix config space access to support bridges

[qemu.git] / block / cow.c

diff --git a/block/cow.c b/block/cow.c
index 4baf9042fe061b4494dcd23a8ea9d87092ac462f..1cc2e89c7cd01a62223cdbca5c4d5e47e12c71d6 100644 (file)
--- a/block/cow.c
+++ b/block/cow.c
@@ -58,7 +58,7 @@ static int cow_probe(const uint8_t *buf, int buf_size, const char *filename)
         return 0;
 }
 
-static int cow_open(BlockDriverState *bs, int flags)
+static int cow_open(BlockDriverState *bs, QDict *options, int flags)
 {
     BDRVCowState *s = bs->opaque;
     struct cow_header_v2 cow_header;
@@ -279,7 +279,7 @@ static int cow_create(const char *filename, QEMUOptionParameter *options)
         return ret;
     }
 
-    ret = bdrv_file_open(&cow_bs, filename, BDRV_O_RDWR);
+    ret = bdrv_file_open(&cow_bs, filename, NULL, BDRV_O_RDWR);
     if (ret < 0) {
         return ret;
     }
@@ -340,6 +340,7 @@ static BlockDriver bdrv_cow = {
     .bdrv_open      = cow_open,
     .bdrv_close     = cow_close,
     .bdrv_create    = cow_create,
+    .bdrv_has_zero_init     = bdrv_has_zero_init_1,
 
     .bdrv_read              = cow_co_read,
     .bdrv_write             = cow_co_write,