Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 18 Nov 2015 15:28:32 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  block: Call external_snapshot_clean after blockdev-snapshot
  blockdev: Add missing bdrv_unref() in drive-backup
  iotests: fix race in 030
  nand: fix address overflow

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

blockdev.c

@@ -2098,6 +2098,7 @@ static const BlkActionOps actions[] = {
         .prepare  = external_snapshot_prepare,
         .commit   = external_snapshot_commit,
         .abort = external_snapshot_abort,
+        .clean = external_snapshot_clean,
     },
     [TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC] = {
         .instance_size = sizeof(ExternalSnapshotState),
@@ -3171,6 +3172,7 @@ static void do_drive_backup(const char *device, const char *target,
         bmap = bdrv_find_dirty_bitmap(bs, bitmap);
         if (!bmap) {
             error_setg(errp, "Bitmap '%s' could not be found", bitmap);
+            bdrv_unref(target_bs);
             goto out;
         }
     }

hw/block/nand.c

@@ -522,8 +522,8 @@ void nand_setio(DeviceState *dev, uint32_t value)
 
     if (s->ale) {
         unsigned int shift = s->addrlen * 8;
-        unsigned int mask = ~(0xff << shift);
-        unsigned int v = value << shift;
+        uint64_t mask = ~(0xffull << shift);
+        uint64_t v = (uint64_t)value << shift;
 
         s->addr = (s->addr & mask) | v;
         s->addrlen ++;

tests/qemu-iotests/030

@@ -245,6 +245,7 @@ class TestEIO(TestErrors):
         while not completed:
             for event in self.vm.get_qmp_events(wait=True):
                 if event['event'] == 'BLOCK_JOB_ERROR':
+                    error = True
                     self.assert_qmp(event, 'data/device', 'drive0')
                     self.assert_qmp(event, 'data/operation', 'read')
 
@@ -257,9 +258,11 @@ class TestEIO(TestErrors):
                     self.assert_qmp(result, 'return', {})
 
                     result = self.vm.qmp('query-block-jobs')
+                    if result == {'return': []}:
+                        # Race; likely already finished. Check.
+                        continue
                     self.assert_qmp(result, 'return[0]/paused', False)
                     self.assert_qmp(result, 'return[0]/io-status', 'ok')
-                    error = True
                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
                     self.assertTrue(error, 'job completed unexpectedly')
                     self.assert_qmp(event, 'data/type', 'stream')