Fixed that valgrind can be used with InnoDB using aio on Linux.

Fixed by calling MEM_MAKE_DEFINED() when InnoDB has read a page.

Author: Vladislav Lesin vladislav.lesin@mariadb.com

Author: montywi

tpool/aio_libaio.cc

@@ -14,6 +14,7 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 - 1301 USA*/
 
 #include "tpool.h"
+#include "my_valgrind.h"
 #include <thread>
 #include <sys/syscall.h>
 #include <libaio.h>
@@ -136,6 +137,10 @@ class aio_libaio final : public aio
 #endif
             iocb->m_ret_len= event.res;
             iocb->m_err= 0;
+#if __has_feature(memory_sanitizer) || defined HAVE_valgrind
+            if (iocb->m_opcode == aio_opcode::AIO_PREAD)
+              MEM_MAKE_DEFINED(iocb->m_buffer, iocb->m_ret_len);
+#endif
             finish_synchronous(iocb);
           }
           iocb->m_internal_task.m_func= iocb->m_callback;

tpool/aio_liburing.cc

@@ -18,6 +18,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 - 1301 USA*/
 #include "my_valgrind.h"
 #include "mysql/service_my_print_error.h"
 #include "mysqld_error.h"
+#include "my_valgrind.h"
 
 #include <liburing.h>
 
@@ -179,7 +180,7 @@ class aio_uring final : public aio
       {
         iocb->m_err= 0;
         iocb->m_ret_len= res;
-#if __has_feature(memory_sanitizer)
+#if __has_feature(memory_sanitizer) || defined HAVE_valgrind
         if (iocb->m_opcode == aio_opcode::AIO_PREAD)
           MEM_MAKE_DEFINED(iocb->m_buffer, res);
 #endif