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diff --git a/mysql/mysql/psi/psi_memory.h b/mysql/mysql/psi/psi_memory.h
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+/* Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software Foundation,
+  51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
+
+#ifndef MYSQL_PSI_MEMORY_H
+#define MYSQL_PSI_MEMORY_H
+
+#include "psi_base.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  @file mysql/psi/psi_memory.h
+  Performance schema instrumentation interface.
+
+  @defgroup Instrumentation_interface Instrumentation Interface
+  @ingroup Performance_schema
+  @{
+*/
+
+#ifdef HAVE_PSI_INTERFACE
+#ifndef DISABLE_ALL_PSI
+#ifndef DISABLE_PSI_MEMORY
+#define HAVE_PSI_MEMORY_INTERFACE
+#endif /* DISABLE_PSI_MEMORY */
+#endif /* DISABLE_ALL_PSI */
+#endif /* HAVE_PSI_INTERFACE */
+
+struct PSI_thread;
+
+/**
+  Instrumented memory key.
+  To instrument memory, a memory key must be obtained using @c register_memory.
+  Using a zero key always disable the instrumentation.
+*/
+typedef unsigned int PSI_memory_key;
+
+#ifdef HAVE_PSI_1
+
+/**
+  @defgroup Group_PSI_v1 Application Binary Interface, version 1
+  @ingroup Instrumentation_interface
+  @{
+*/
+
+/**
+  Memory instrument information.
+  @since PSI_VERSION_1
+  This structure is used to register instrumented memory.
+*/
+struct PSI_memory_info_v1
+{
+  /** Pointer to the key assigned to the registered memory. */
+  PSI_memory_key *m_key;
+  /** The name of the memory instrument to register. */
+  const char *m_name;
+  /**
+    The flags of the socket instrument to register.
+    @sa PSI_FLAG_GLOBAL
+  */
+  int m_flags;
+};
+typedef struct PSI_memory_info_v1 PSI_memory_info_v1;
+
+/**
+  Memory registration API.
+  @param category a category name (typically a plugin name)
+  @param info an array of memory info to register
+  @param count the size of the info array
+*/
+typedef void (*register_memory_v1_t)
+  (const char *category, struct PSI_memory_info_v1 *info, int count);
+
+/**
+  Instrument memory allocation.
+  @param key the memory instrument key
+  @param size the size of memory allocated
+  @param[out] owner the memory owner
+  @return the effective memory instrument key
+*/
+typedef PSI_memory_key (*memory_alloc_v1_t)
+  (PSI_memory_key key, size_t size, struct PSI_thread ** owner);
+
+/**
+  Instrument memory re allocation.
+  @param key the memory instrument key
+  @param old_size the size of memory previously allocated
+  @param new_size the size of memory re allocated
+  @param[in, out] owner the memory owner
+  @return the effective memory instrument key
+*/
+typedef PSI_memory_key (*memory_realloc_v1_t)
+  (PSI_memory_key key, size_t old_size, size_t new_size, struct PSI_thread ** owner);
+
+/**
+  Instrument memory claim.
+  @param key the memory instrument key
+  @param size the size of memory allocated
+  @param[in, out] owner the memory owner
+  @return the effective memory instrument key
+*/
+typedef PSI_memory_key (*memory_claim_v1_t)
+  (PSI_memory_key key, size_t size, struct PSI_thread ** owner);
+
+/**
+  Instrument memory free.
+  @param key the memory instrument key
+  @param size the size of memory allocated
+  @param owner the memory owner
+*/
+typedef void (*memory_free_v1_t)
+  (PSI_memory_key key, size_t size, struct PSI_thread * owner);
+
+/** @} (end of group Group_PSI_v1) */
+
+#endif /* HAVE_PSI_1 */
+
+#ifdef HAVE_PSI_2
+struct PSI_memory_info_v2
+{
+  int placeholder;
+};
+
+#endif /* HAVE_PSI_2 */
+
+#ifdef USE_PSI_1
+typedef struct PSI_memory_info_v1 PSI_memory_info;
+#endif
+
+#ifdef USE_PSI_2
+typedef struct PSI_memory_info_v2 PSI_memory_info;
+#endif
+
+/** @} (end of group Instrumentation_interface) */
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* MYSQL_PSI_MEMORY_H */
+