[Qemu-stable] [PATCH 0/4] curl: locking cleanups and fixes

[Paolo Bonzini]

This is the full version of the simple patch:

@@ -473,7 +475,9 @@
             break;
         }
         if (!state) {
+            qemu_mutex_unlock(&s->mutex);
             aio_poll(bdrv_get_aio_context(bs), true);
+            qemu_mutex_lock(&s->mutex);
         }
     } while(!state);

that was tested by Richard last week.  Richard, please retest with your test
case.

Thanks,

Paolo

Paolo Bonzini (4):
  curl: strengthen assertion in curl_clean_state
  curl: never invoke callbacks with s->mutex held
  curl: avoid recursive locking of BDRVCURLState mutex
  curl: improve search for unused CURLState

 block/curl.c | 78 ++++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 55 insertions(+), 23 deletions(-)

-- 
2.12.2