[PATCH 14/14] migration/multifd: Forbid spurious wakeups

[peterx@redhat.com]

From: Peter Xu <peterx@redhat.com>

Now multifd's logic is designed to have no spurious wakeup.  I still
remember a talk to Juan and he seems to agree we should drop it now, and if
my memory was right it was there because multifd used to hit that when
still debugging.

Let's drop it and see what can explode; as long as it's not reaching
soft-freeze.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 migration/multifd.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/migration/multifd.c b/migration/multifd.c
index 0f22646f95..bd0e3ea1a5 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -766,9 +766,6 @@ static void *multifd_send_thread(void *opaque)
             p->pending_sync = false;
             qemu_mutex_unlock(&p->mutex);
             qemu_sem_post(&p->sem_sync);
-        } else {
-            qemu_mutex_unlock(&p->mutex);
-            /* sometimes there are spurious wakeups */
         }
     }
 
-- 
2.43.0