Add likely/unlikely to speed up execution

Added to:
- if (error)
- Lex
- sql_yacc.yy and sql_yacc_ora.yy
- In header files to alloc() calls
- Added thd argument to thd_net_is_killed()

1 files changed, 1 insertions, 1 deletions

diff --git a/sql/hostname.cc b/sql/hostname.cc
index 2d39a8bb03d..00c780d9f35 100644
--- a/sql/hostname.cc
+++ b/sql/hostname.cc
@@ -460,7 +460,7 @@ int ip_to_hostname(struct sockaddr_storage *ip_storage,
       entry->m_last_seen= now;
       *connect_errors= entry->m_errors.m_connect;
 
-      if (entry->m_errors.m_connect >= max_connect_errors)
+      if (unlikely(entry->m_errors.m_connect >= max_connect_errors))
       {
         entry->m_errors.m_host_blocked++;
         entry->set_error_timestamps(now);