configure: make --iasl option actually work

[qemu.git] / block / qcow2-snapshot.c

diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 812dab2aa5d32b5e6caedae28915b2de6549a4e8..3529c683c691ad6373a21597f42fbc509b52f717 100644 (file)
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -192,8 +192,7 @@ static int qcow2_write_snapshots(BlockDriverState *bs)
 
     /* The snapshot list position has not yet been updated, so these clusters
      * must indeed be completely free */
-    ret = qcow2_pre_write_overlap_check(bs, QCOW2_OL_DEFAULT, offset,
-                                        snapshots_size);
+    ret = qcow2_pre_write_overlap_check(bs, 0, offset, snapshots_size);
     if (ret < 0) {
         goto fail;
     }
@@ -292,7 +291,8 @@ static void find_new_snapshot_id(BlockDriverState *bs,
 {
     BDRVQcowState *s = bs->opaque;
     QCowSnapshot *sn;
-    int i, id, id_max = 0;
+    int i;
+    unsigned long id, id_max = 0;
 
     for(i = 0; i < s->nb_snapshots; i++) {
         sn = s->snapshots + i;
@@ -300,7 +300,7 @@ static void find_new_snapshot_id(BlockDriverState *bs,
         if (id > id_max)
             id_max = id;
     }
-    snprintf(id_str, id_str_size, "%d", id_max + 1);
+    snprintf(id_str, id_str_size, "%lu", id_max + 1);
 }
 
 static int find_snapshot_by_id_and_name(BlockDriverState *bs,
@@ -394,8 +394,8 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
         l1_table[i] = cpu_to_be64(s->l1_table[i]);
     }
 
-    ret = qcow2_pre_write_overlap_check(bs, QCOW2_OL_DEFAULT,
-            sn->l1_table_offset, s->l1_size * sizeof(uint64_t));
+    ret = qcow2_pre_write_overlap_check(bs, 0, sn->l1_table_offset,
+                                        s->l1_size * sizeof(uint64_t));
     if (ret < 0) {
         goto fail;
     }
@@ -433,6 +433,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
     if (ret < 0) {
         g_free(s->snapshots);
         s->snapshots = old_snapshot_list;
+        s->nb_snapshots--;
         goto fail;
     }
 
@@ -519,9 +520,8 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
         goto fail;
     }
 
-    ret = qcow2_pre_write_overlap_check(bs,
-            QCOW2_OL_DEFAULT & ~QCOW2_OL_ACTIVE_L1,
-            s->l1_table_offset, cur_l1_bytes);
+    ret = qcow2_pre_write_overlap_check(bs, QCOW2_OL_ACTIVE_L1,
+                                        s->l1_table_offset, cur_l1_bytes);
     if (ret < 0) {
         goto fail;
     }