client: asynchronous fsync can decrement request ref twice

After the asynchronous execution context is woken up when waiting
for Fb caps reference to be released.

Fixes: http://tracker.ceph.com/issues/71510
Signed-off-by: Venky Shankar <vshankar@redhat.com>

diff --git a/src/client/Client.cc b/src/client/Client.cc
index 818456fb1a87791180809845ed9fea8af1938c10..f899b183110693d347f9834ad1ad467c56faa938 100644 (file)
--- a/src/client/Client.cc
+++ b/src/client/Client.cc
@@ -12137,6 +12137,7 @@ void Client::C_nonblocking_fsync_state::advance()
 
     if (waitfor_safe) {
       clnt->put_request(req);
+      waitfor_safe = false;
     }
 
     if (flush_wait && !flush_completed) {