[Qemu-devel] [PATCH] Fix DEBUG_* compilation of qcow2.

[Philipp Hahn <hahn@univention.de>]

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By introducing BlockDriverState compiling qcow2 with DEBUG_ALLOC and DEBUG_EXT
defined got broken.
Define a BdrvCheckResult structure locally which is now needed as the second
argument.

Also fix qcow2_read_extensions() needing BDRVQcowState.

Signed-off-by: Philipp Hahn <hahn@univention.de>
---
 block/qcow2-snapshot.c |   15 ++++++++++++---
 block/qcow2.c          |    6 +++++-
 2 files changed, 17 insertions(+), 4 deletions(-)


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diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 74823a5..a6c0861 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -303,7 +303,10 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
     if (qcow2_write_snapshots(bs) < 0)
         goto fail;
 #ifdef DEBUG_ALLOC
-    qcow2_check_refcounts(bs);
+    {
+      BdrvCheckResult result = {0};
+      qcow2_check_refcounts(bs, &result);
+    }
 #endif
     return 0;
  fail:
@@ -347,7 +350,10 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
         goto fail;
 
 #ifdef DEBUG_ALLOC
-    qcow2_check_refcounts(bs);
+    {
+        BdrvCheckResult result = {0};
+        qcow2_check_refcounts(bs, &result);
+    }
 #endif
     return 0;
  fail:
@@ -384,7 +390,10 @@ int qcow2_snapshot_delete(BlockDriverState *bs, const char *snapshot_id)
         return ret;
     }
 #ifdef DEBUG_ALLOC
-    qcow2_check_refcounts(bs);
+    {
+        BdrvCheckResult result = {0};
+        qcow2_check_refcounts(bs, &result);
+    }
 #endif
     return 0;
 }
diff --git a/block/qcow2.c b/block/qcow2.c
index 48e1b95..a42ece9 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -87,6 +87,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
     while (offset < end_offset) {
 
 #ifdef DEBUG_EXT
+        BDRVQcowState *s = bs->opaque;
         /* Sanity check */
         if (offset > s->cluster_size)
             printf("qcow2_read_extension: suspicious offset %lu\n", offset);
@@ -277,7 +278,10 @@ static int qcow2_open(BlockDriverState *bs, int flags)
     }
 
 #ifdef DEBUG_ALLOC
-    qcow2_check_refcounts(bs);
+    {
+        BdrvCheckResult result = {0};
+        qcow2_check_refcounts(bs, &result);
+    }
 #endif
     return ret;