Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Fri 29 Aug 2014 17:25:58 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request: (35 commits)
  quorum: Fix leak of opts in quorum_open
  blkverify: Fix leak of opts in blkverify_open
  nfs: Fix leak of opts in nfs_file_open
  curl: Don't deref NULL pointer in call to aio_poll.
  curl: Allow a cookie or cookies to be sent with http/https requests.
  virtio-blk: allow drive_del with dataplane
  block: acquire AioContext in do_drive_del()
  linux-aio: avoid deadlock in nested aio_poll() calls
  qemu-iotests: add multiwrite test cases
  block: fix overlapping multiwrite requests
  nbd: Follow the BDS' AIO context
  block: Add AIO context notifiers
  nbd: Drop nbd_can_read()
  sheepdog: fix a core dump while do auto-reconnecting
  aio-win32: add support for sockets
  qemu-coroutine-io: fix for Win32
  AioContext: introduce aio_prepare
  aio-win32: add aio_set_dispatching optimization
  test-aio: test timers on Windows too
  AioContext: export and use aio_dispatch
  ...

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

1 files changed, 10 insertions, 2 deletions

diff --git a/blockdev.c b/blockdev.c
index 6a204c662d..e37b068e9e 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1757,6 +1757,7 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     const char *id = qdict_get_str(qdict, "id");
     BlockDriverState *bs;
+    AioContext *aio_context;
     Error *local_err = NULL;
 
     bs = bdrv_find(id);
@@ -1764,9 +1765,14 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
         error_report("Device '%s' not found", id);
         return -1;
     }
+
+    aio_context = bdrv_get_aio_context(bs);
+    aio_context_acquire(aio_context);
+
     if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_DRIVE_DEL, &local_err)) {
         error_report("%s", error_get_pretty(local_err));
         error_free(local_err);
+        aio_context_release(aio_context);
         return -1;
     }
 
@@ -1790,6 +1796,7 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
         drive_del(drive_get_by_blockdev(bs));
     }
 
+    aio_context_release(aio_context);
     return 0;
 }
 
@@ -2179,11 +2186,12 @@ void qmp_drive_mirror(const char *device, const char *target,
     }
 
     if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
-        error_set(errp, QERR_INVALID_PARAMETER, device);
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "granularity",
+                  "a value in range [512B, 64MB]");
         return;
     }
     if (granularity & (granularity - 1)) {
-        error_set(errp, QERR_INVALID_PARAMETER, device);
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "granularity", "power of 2");
         return;
     }