# should be done or reviewed by the maintainer!
--- a/storage/innobase/buf/buf0buf.c
+++ b/storage/innobase/buf/buf0buf.c
-@@ -1006,10 +1006,12 @@
+@@ -1022,10 +1022,12 @@
buf_block_t* block;
byte* frame;
ulint i;
/* Reserve space for the block descriptors. */
mem_size += ut_2pow_round((mem_size / UNIV_PAGE_SIZE) * (sizeof *block)
+ (UNIV_PAGE_SIZE - 1), UNIV_PAGE_SIZE);
-@@ -1047,6 +1049,10 @@
+@@ -1063,6 +1065,10 @@
chunk->size = size;
}
static char* internal_innobase_data_file_path = NULL;
-@@ -2675,6 +2677,12 @@
+@@ -2706,6 +2708,12 @@
srv_buf_pool_size = (ulint) innobase_buffer_pool_size;
srv_buf_pool_instances = (ulint) innobase_buffer_pool_instances;
srv_mem_pool_size = (ulint) innobase_additional_mem_pool_size;
srv_n_file_io_threads = (ulint) innobase_file_io_threads;
-@@ -11749,6 +11757,16 @@
+@@ -11863,6 +11871,16 @@
"Number of buffer pool instances, set to higher value on high-end machines to increase scalability",
NULL, NULL, 1L, 1L, MAX_BUFFER_POOLS, 1L);
static MYSQL_SYSVAR_ULONG(commit_concurrency, innobase_commit_concurrency,
PLUGIN_VAR_RQCMDARG,
"Helps in performance tuning in heavily concurrent environments.",
-@@ -12043,6 +12061,8 @@
+@@ -12209,6 +12227,8 @@
MYSQL_SYSVAR(autoextend_increment),
MYSQL_SYSVAR(buffer_pool_size),
MYSQL_SYSVAR(buffer_pool_instances),
MYSQL_SYSVAR(checksums),
MYSQL_SYSVAR(fast_checksum),
MYSQL_SYSVAR(commit_concurrency),
+--- /dev/null
++++ b/mysql-test/r/percona_innodb_buffer_pool_shm.result
+@@ -0,0 +1,4 @@
++show variables like 'innodb_buffer_pool_shm%';
++Variable_name Value
++innodb_buffer_pool_shm_checksum ON
++innodb_buffer_pool_shm_key 123456
+--- /dev/null
++++ b/mysql-test/t/percona_innodb_buffer_pool_shm-master.opt
+@@ -0,0 +1 @@
++--innodb_buffer_pool_shm_key=123456
+--- /dev/null
++++ b/mysql-test/t/percona_innodb_buffer_pool_shm.test
+@@ -0,0 +1,2 @@
++--source include/have_innodb.inc
++show variables like 'innodb_buffer_pool_shm%';