Commits on Apr 3, 2024

1. rpc: Improve rpc clnt connection cleanup process …

   During the first rpc clnt submission we take the rpc reference and
   register the call_bail function for the timer thread. The timer thread
   call call_bail function every 10s basis. In case if a client trigger a
   shutdown request it try to call rpc_clnt_connection_cleanup to cleanup
   the rpc connection.The rpc_clnt_connection would not be able to cleanup
   the rpc connection successfully due to the cleanup_started flag being set by
   the upper xlator. The rpc reference will be unref only after trigger
   a call_bail function so basically if somehow call_bail is triggered just
   before start a shutdown process the application has to wait for 10s
   to cleanup the rpc connection eventually the process becomes slow.
   
   Solution: Unref the rpc object based on the conn->timer/conn->reconnect
   pointer value as we are doing the same for ping_timer. These pointer are always
   modified under the critical section so we can assume if pointer is valid it means
   rpc reference is also valid.
   
   Fixes: gluster#4320
   credits: Xavi Hernandez <xhernandez@redhat.com>
   Change-Id: Ib947b8bfcbe1b49e1ed05a50a84de6f92afbca13
   Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>

   

   mohit84 committed Apr 3, 2024
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