librbd: potential read IO hang when image is flattened

Fixes: http://tracker.ceph.com/issues/19832
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 10d58618e7c632ef01b9537492239e0a042dc17e)

diff --git a/src/librbd/AioObjectRequest.cc b/src/librbd/AioObjectRequest.cc
index 1b466efe52c4d8ac8f9512b51fec2dc2f05197e1..910f9a122b6d2cff25580ca030288410c3e04c5f 100644 (file)
--- a/src/librbd/AioObjectRequest.cc
+++ b/src/librbd/AioObjectRequest.cc
@@ -187,8 +187,6 @@ bool AioObjectRead<I>::should_complete(int r)
         RWLock::RLocker parent_locker(image_ctx->parent_lock);
         if (image_ctx->parent == NULL) {
           ldout(image_ctx->cct, 20) << "parent is gone; do nothing" << dendl;
-          m_state = LIBRBD_AIO_READ_FLAT;
-          finished = false;
           break;
         }