Fixes to merge.

mysql-test/r/maria.result:
  Fixed result file. The results will be fixed by Sergei's patch.
mysql-test/t/variables.test:
  Fixed result file. The results will be fixed by Sergei's patch.
mysys/my_getopt.c:
  Fixed a problem with manual merge.
sql/set_var.cc:
  Fixed a problem with manual merge.
sql/set_var.h:
  Fixed a problem with manual merge.
sql/sql_plugin.cc:
  Removed unneccessary function call. This was forgotten from
  a previous patch.

mysql-test/r/maria.result

@@ -2051,10 +2051,10 @@ maria_block_size	8192
 maria_checkpoint_interval	30
 maria_log_file_size	4294959104
 maria_log_purge_type	immediate
-maria_max_sort_file_size	9223372036853727232
+maria_max_sort_file_size	9223372036854775807
 maria_page_checksum	ON
 maria_pagecache_age_threshold	300
-maria_pagecache_buffer_size	8384512
+maria_pagecache_buffer_size	8388572
 maria_pagecache_division_limit	100
 maria_repair_threads	1
 maria_sort_buffer_size	8388608

mysql-test/t/variables.test

@@ -141,9 +141,9 @@ set GLOBAL myisam_max_sort_file_size=2000000;
 show global variables like 'myisam_max_sort_file_size';
 select * from information_schema.global_variables where variable_name like 'myisam_max_sort_file_size';
 set GLOBAL myisam_max_sort_file_size=default;
---replace_result 2146435072 FILE_SIZE 9223372036853727232 FILE_SIZE
+--replace_result 2147483647 FILE_SIZE 9223372036854775807 FILE_SIZE
 show variables like 'myisam_max_sort_file_size';
---replace_result 2146435072 FILE_SIZE 9223372036853727232 FILE_SIZE
+--replace_result 2147483647 FILE_SIZE 9223372036854775807 FILE_SIZE
 select * from information_schema.session_variables where variable_name like 'myisam_max_sort_file_size';
 
 set global net_retry_count=10, session net_retry_count=10;

mysys/my_getopt.c

@@ -27,10 +27,15 @@ typedef void (*init_func_p)(const struct my_option *option, uchar* *variable,
 static void default_reporter(enum loglevel level, const char *format, ...);
 my_error_reporter my_getopt_error_reporter= &default_reporter;
 
-static int findopt(char *, uint, const struct my_option **, char **);
-my_bool getopt_compare_strings(const char *, const char *, uint);
+static int findopt(char *optpat, uint length,
+                   const struct my_option **opt_res,
+                   char **ffname);
+my_bool getopt_compare_strings(const char *s,
+                               const char *t,
+                               uint length);
 static longlong getopt_ll(char *arg, const struct my_option *optp, int *err);
-static ulonglong getopt_ull(char *, const struct my_option *, int *);
+static ulonglong getopt_ull(char *arg, const struct my_option *optp,
+                            int *err);
 static double getopt_double(char *arg, const struct my_option *optp, int *err);
 static void init_variables(const struct my_option *options,
                            init_func_p init_one_value);
@@ -38,7 +43,8 @@ static void init_one_value(const struct my_option *option, uchar* *variable,
 			   longlong value);
 static void fini_one_value(const struct my_option *option, uchar* *variable,
 			   longlong value);
-static int setval(const struct my_option *, uchar **, char *, my_bool);
+static int setval(const struct my_option *opts, uchar **value, char *argument,
+                  my_bool set_maximum_value);
 static char *check_struct_option(char *cur_arg, char *key_name);
 
 /*
@@ -861,7 +867,7 @@ ulonglong getopt_ull_limit_value(ulonglong num, const struct my_option *optp,
                                  bool *fix)
 {
   bool adjusted= FALSE;
-  ulonglong old= num;
+  ulonglong old= num, mod;
   char buf1[255], buf2[255];
 
   if ((ulonglong) num > (ulonglong) optp->max_value &&
@@ -886,6 +892,8 @@ ulonglong getopt_ull_limit_value(ulonglong num, const struct my_option *optp,
       num= ((ulonglong) ULONG_MAX);
       adjusted= TRUE;
     }
+#else
+    num= min(num, LONG_MAX);
 #endif
     break;
   default:
@@ -951,41 +959,35 @@ static double getopt_double(char *arg, const struct my_option *optp, int *err)
 
   SYNOPSIS
     init_one_value()
-    optp                Option to initialize
+    option              Option to initialize
     value               Pointer to variable
 */
 
-static void init_one_value(const struct my_option *optp, uchar* *variable,
+static void init_one_value(const struct my_option *option, uchar* *variable,
 			   longlong value)
 {
   DBUG_ENTER("init_one_value");
-  switch ((optp->var_type & GET_TYPE_MASK)) {
+  switch ((option->var_type & GET_TYPE_MASK)) {
   case GET_BOOL:
     *((my_bool*) variable)= (my_bool) value;
     break;
   case GET_INT:
-    *((int*) variable)= (int) getopt_ll_limit_value(value, optp, NULL);
-    break;
-  case GET_UINT:
-    *((uint*) variable)= (uint) getopt_ull_limit_value(value, optp, NULL);
+    *((int*) variable)= (int) value;
     break;
+  case GET_UINT: /* Fall through */
   case GET_ENUM:
     *((uint*) variable)= (uint) value;
     break;
   case GET_LONG:
-    *((long*) variable)= (long) getopt_ll_limit_value(value, optp, NULL);
+    *((long*) variable)= (long) value;
     break;
   case GET_ULONG:
-    *((ulong*) variable)= (ulong) getopt_ull_limit_value(value, optp, NULL);
+    *((ulong*) variable)= (ulong) value;
     break;
   case GET_LL:
-    *((longlong*) variable)= (longlong) getopt_ll_limit_value(value, optp,
-                                                              NULL);
-    break;
-  case GET_ULL:
-    *((ulonglong*) variable)=  (ulonglong) getopt_ull_limit_value(value, optp,
-                                                                  NULL);
+    *((longlong*) variable)= (longlong) value;
     break;
+  case GET_ULL: /* Fall through */
   case GET_SET:
     *((ulonglong*) variable)=  (ulonglong) value;
     break;

sql/set_var.cc

@@ -331,10 +331,12 @@ static sys_var_thd_ulong       sys_myisam_repair_threads(&vars, "myisam_repair_t
 static sys_var_thd_ulong	sys_myisam_sort_buffer_size(&vars, "myisam_sort_buffer_size", &SV::myisam_sort_buff_size);
 static sys_var_bool_ptr	sys_myisam_use_mmap(&vars, "myisam_use_mmap",
                                             &opt_myisam_use_mmap);
+
 static sys_var_thd_enum         sys_myisam_stats_method(&vars, "myisam_stats_method",
                                                 &SV::myisam_stats_method,
                                                 &myisam_stats_method_typelib,
                                                 NULL);
+
 static sys_var_thd_ulong	sys_net_buffer_length(&vars, "net_buffer_length",
 					      &SV::net_buffer_length);
 static sys_var_thd_ulong	sys_net_read_timeout(&vars, "net_read_timeout",
@@ -387,7 +389,7 @@ static sys_var_thd_ulong	sys_trans_alloc_block_size(&vars, "transaction_alloc_bl
 static sys_var_thd_ulong	sys_trans_prealloc_size(&vars, "transaction_prealloc_size",
 						&SV::trans_prealloc_size,
 						0, fix_trans_mem_root);
-sys_var_thd_enum        sys_thread_handling(&vars, "thread_handling",
+sys_var_enum_const        sys_thread_handling(&vars, "thread_handling",
                                               &SV::thread_handling,
                                               &thread_handling_typelib,
                                               NULL);
@@ -1229,6 +1231,13 @@ uchar *sys_var_enum::value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
   return (uchar*) enum_names->type_names[*value];
 }
 
+
+uchar *sys_var_enum_const::value_ptr(THD *thd, enum_var_type type,
+                                     LEX_STRING *base)
+{
+  return (uchar*) enum_names->type_names[global_system_variables.*offset];
+}
+
 bool sys_var_thd_ulong::check(THD *thd, set_var *var)
 {
   return (get_unsigned(thd, var) ||
@@ -1982,7 +1991,6 @@ LEX_STRING default_key_cache_base= {(char *) "default", 7 };
 
 static KEY_CACHE zero_key_cache;
 
-
 KEY_CACHE *get_key_cache(LEX_STRING *cache_name)
 {
   safe_mutex_assert_owner(&LOCK_global_system_variables);
@@ -3701,7 +3709,6 @@ void sys_var_trust_routine_creators::warn_deprecated(THD *thd)
                       "'log_bin_trust_function_creators'");
 }
 
-
 void sys_var_trust_routine_creators::set_default(THD *thd, enum_var_type type)
 {
   warn_deprecated(thd);

sql/set_var.h

@@ -305,6 +305,24 @@ class sys_var_enum :public sys_var
 };
 
 
+class sys_var_enum_const :public sys_var
+{
+  ulong SV::*offset;
+  TYPELIB *enum_names;
+public:
+  sys_var_enum_const(sys_var_chain *chain, const char *name_arg, ulong SV::*offset_arg,
+      TYPELIB *typelib, sys_after_update_func func)
+    :sys_var(name_arg,func), offset(offset_arg), enum_names(typelib)
+  { chain_sys_var(chain); }
+  bool check(THD *thd, set_var *var) { return 1; }
+  bool update(THD *thd, set_var *var) { return 1; }
+  SHOW_TYPE show_type() { return SHOW_CHAR; }
+  bool check_update_type(Item_result type) { return 1; }
+  bool is_readonly() const { return 1; }
+  uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
+};
+
+
 class sys_var_thd :public sys_var
 {
 public:

sql/sql_plugin.cc

@@ -1937,7 +1937,6 @@ static int check_func_longlong(THD *thd, struct st_mysql_sys_var *var,
   struct my_option options;
   value->val_int(value, &tmp);
   plugin_opt_set_limits(&options, var);
-  *(ulonglong *)save= getopt_ull_limit_value(tmp, &options, &fixed);
 
   if (var->flags & PLUGIN_VAR_UNSIGNED)
     *(ulonglong *)save= getopt_ull_limit_value((ulonglong) tmp, &options,