# name       : innodb_fix_misc.patch
# introduced : 11 or before
# maintainer : Yasufumi
#
#!!! notice !!!
# Any small change to this file in the main branch
# should be done or reviewed by the maintainer!
#
# comment: http://lists.mysql.com/commits/112400 is applied also for innodb_plugin
#          to pass innodb_bug53756.test by innodb_plugin
diff -ruN a/storage/innobase/dict/dict0load.c b/storage/innobase/dict/dict0load.c
--- a/storage/innobase/dict/dict0load.c	2010-12-04 15:37:50.559480289 +0900
+++ b/storage/innobase/dict/dict0load.c	2010-12-04 15:57:53.078513745 +0900
@@ -1851,6 +1851,8 @@
 
 	ut_ad(mutex_own(&(dict_sys->mutex)));
 
+	table = NULL;
+
 	/* NOTE that the operation of this function is protected by
 	the dictionary mutex, and therefore no deadlocks can occur
 	with other dictionary operations. */
@@ -1877,15 +1879,17 @@
 				  BTR_SEARCH_LEAF, &pcur, &mtr);
 	rec = btr_pcur_get_rec(&pcur);
 
-	if (!btr_pcur_is_on_user_rec(&pcur)
-	    || rec_get_deleted_flag(rec, 0)) {
+	if (!btr_pcur_is_on_user_rec(&pcur)) {
 		/* Not found */
+		goto func_exit;
+	}
 
-		btr_pcur_close(&pcur);
-		mtr_commit(&mtr);
-		mem_heap_free(heap);
-
-		return(NULL);
+	/* Find the first record that is not delete marked */
+	while (rec_get_deleted_flag(rec, 0)) {
+		if (!btr_pcur_move_to_next_user_rec(&pcur, &mtr)) {
+			goto func_exit;
+		}
+		rec = btr_pcur_get_rec(&pcur);
 	}
 
 	/*---------------------------------------------------*/
@@ -1898,12 +1902,7 @@
 
 	/* Check if the table id in record is the one searched for */
 	if (table_id != mach_read_from_8(field)) {
-
-		btr_pcur_close(&pcur);
-		mtr_commit(&mtr);
-		mem_heap_free(heap);
-
-		return(NULL);
+		goto func_exit;
 	}
 
 	/* Now we get the table name from the record */
@@ -1911,7 +1910,7 @@
 	/* Load the table definition to memory */
 	table = dict_load_table(mem_heap_strdupl(heap, (char*) field, len),
 				TRUE);
-
+func_exit:
 	btr_pcur_close(&pcur);
 	mtr_commit(&mtr);
 	mem_heap_free(heap);
diff -ruN a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc
--- a/storage/innobase/handler/ha_innodb.cc	2010-12-04 15:57:13.035513990 +0900
+++ b/storage/innobase/handler/ha_innodb.cc	2010-12-04 15:57:53.084513775 +0900
@@ -12007,7 +12007,7 @@
   &innobase_storage_engine,
   innobase_hton_name,
   "Innobase Oy",
-  "Supports transactions, row-level locking, and foreign keys",
+  "Percona-XtraDB, Supports transactions, row-level locking, and foreign keys",
   PLUGIN_LICENSE_GPL,
   innobase_init, /* Plugin Init */
   NULL, /* Plugin Deinit */
diff -ruN a/storage/innobase/include/univ.i b/storage/innobase/include/univ.i
--- a/storage/innobase/include/univ.i	2010-12-04 15:57:13.050485224 +0900
+++ b/storage/innobase/include/univ.i	2010-12-04 15:57:53.091592933 +0900
@@ -48,6 +48,11 @@
 #define INNODB_VERSION_MINOR	1
 #define INNODB_VERSION_BUGFIX	4
 
+#ifndef PERCONA_INNODB_VERSION
+#define PERCONA_INNODB_VERSION 12.1
+#endif
+
+
 /* The following is the InnoDB version as shown in
 SELECT plugin_version FROM information_schema.plugins;
 calculated in make_version_string() in sql/sql_show.cc like this:
@@ -58,13 +63,15 @@
 	(INNODB_VERSION_MAJOR << 8 | INNODB_VERSION_MINOR)
 
 /* auxiliary macros to help creating the version as string */
-#define __INNODB_VERSION(a, b, c)	(#a "." #b "." #c)
-#define _INNODB_VERSION(a, b, c)	__INNODB_VERSION(a, b, c)
+#define __INNODB_VERSION(a, b, c, d)   (#a "." #b "." #c "-" #d)
+#define _INNODB_VERSION(a, b, c, d)    __INNODB_VERSION(a, b, c, d)
+
 
 #define INNODB_VERSION_STR			\
 	_INNODB_VERSION(INNODB_VERSION_MAJOR,	\
 			INNODB_VERSION_MINOR,	\
-			INNODB_VERSION_BUGFIX)
+			INNODB_VERSION_BUGFIX,  \
+			PERCONA_INNODB_VERSION)
 
 #define REFMAN "http://dev.mysql.com/doc/refman/5.1/en/"
 
diff -ruN a/storage/innobase/row/row0mysql.c b/storage/innobase/row/row0mysql.c
--- a/storage/innobase/row/row0mysql.c	2010-12-04 15:37:50.598481116 +0900
+++ b/storage/innobase/row/row0mysql.c	2010-12-04 15:57:53.092563335 +0900
@@ -1194,6 +1194,13 @@
 
 	thr = que_fork_get_first_thr(prebuilt->ins_graph);
 
+	if (!prebuilt->mysql_has_locked && !(prebuilt->table->flags & (DICT_TF2_TEMPORARY << DICT_TF2_SHIFT))) {
+		fprintf(stderr, "InnoDB: Error: row_insert_for_mysql is called without ha_innobase::external_lock()\n");
+		if (trx->mysql_thd != NULL) {
+			innobase_mysql_print_thd(stderr, trx->mysql_thd, 600);
+		}
+	}
+
 	if (prebuilt->sql_stat_start) {
 		node->state = INS_NODE_SET_IX_LOCK;
 		prebuilt->sql_stat_start = FALSE;
diff -ruN a/storage/innobase/row/row0sel.c b/storage/innobase/row/row0sel.c
--- a/storage/innobase/row/row0sel.c	2010-12-04 15:52:23.494514495 +0900
+++ b/storage/innobase/row/row0sel.c	2010-12-04 16:01:38.320883699 +0900
@@ -3366,6 +3366,7 @@
 	ulint		offsets_[REC_OFFS_NORMAL_SIZE];
 	ulint*		offsets				= offsets_;
 	ibool		table_lock_waited		= FALSE;
+	ibool		problematic_use			= FALSE;
 
 	rec_offs_init(offsets_);
 
@@ -3732,6 +3733,17 @@
 
 	/* Do some start-of-statement preparations */
 
+	if (!prebuilt->mysql_has_locked) {
+		if (!(prebuilt->table->flags & (DICT_TF2_TEMPORARY << DICT_TF2_SHIFT))) {
+			fprintf(stderr, "InnoDB: Error: row_search_for_mysql() is called without ha_innobase::external_lock()\n");
+			if (trx->mysql_thd != NULL) {
+				innobase_mysql_print_thd(stderr, trx->mysql_thd, 600);
+			}
+		}
+		problematic_use = TRUE;
+	}
+retry_check:
+	
 	if (!prebuilt->sql_stat_start) {
 		/* No need to set an intention lock or assign a read view */
 
@@ -3742,6 +3754,18 @@
 			      " perform a consistent read\n"
 			      "InnoDB: but the read view is not assigned!\n",
 			      stderr);
+			if (problematic_use) {
+				fprintf(stderr, "InnoDB: It may be caused by calling "
+						"without ha_innobase::external_lock()\n"
+						"InnoDB: For the first-aid, avoiding the crash. "
+						"But it should be fixed ASAP.\n");
+				if (prebuilt->table->flags & (DICT_TF2_TEMPORARY << DICT_TF2_SHIFT)
+				    && trx->mysql_thd != NULL) {
+					innobase_mysql_print_thd(stderr, trx->mysql_thd, 600);
+				}
+				prebuilt->sql_stat_start = TRUE;
+				goto retry_check;
+			}
 			trx_print(stderr, trx, 600);
 			fputc('\n', stderr);
 			ut_error;
diff -ruN a/storage/innobase/srv/srv0start.c b/storage/innobase/srv/srv0start.c
--- a/storage/innobase/srv/srv0start.c	2010-12-04 15:57:13.073495392 +0900
+++ b/storage/innobase/srv/srv0start.c	2010-12-04 16:02:50.704884053 +0900
@@ -2032,7 +2032,7 @@
 	if (srv_print_verbose_log) {
 		ut_print_timestamp(stderr);
 		fprintf(stderr,
-			"  InnoDB: %s started; "
+			" Percona XtraDB (http://www.percona.com) %s started; "
 			"log sequence number %llu\n",
 			INNODB_VERSION_STR, srv_start_lsn);
 	}
diff -ruN a/storage/innobase/trx/trx0purge.c b/storage/innobase/trx/trx0purge.c
--- a/storage/innobase/trx/trx0purge.c	2010-11-03 07:01:13.000000000 +0900
+++ b/storage/innobase/trx/trx0purge.c	2010-12-04 15:57:53.106551154 +0900
@@ -1131,8 +1131,7 @@
 	/* If we cannot advance the 'purge view' because of an old
 	'consistent read view', then the DML statements cannot be delayed.
 	Also, srv_max_purge_lag <= 0 means 'infinity'. */
-	if (srv_max_purge_lag > 0
-	    && !UT_LIST_GET_LAST(trx_sys->view_list)) {
+	if (srv_max_purge_lag > 0) {
 		float	ratio = (float) trx_sys->rseg_history_len
 			/ srv_max_purge_lag;
 		if (ratio > ULINT_MAX / 10000) {