Merge MySQL->MariaDBmariadb-merge-mysql-5.1.38minus

* Finished Monty and Jani's merge
* Some InnoDB tests still fail (because it's old xtradb code run against
  newer testsuite). They are expected to go after mergning with the latest
  xtradb.

1 files changed, 4 insertions, 2 deletions

diff --git a/mysys/mf_keycache.c b/mysys/mf_keycache.c
index ea0c97f5913..ece6c35888d 100644
--- a/mysys/mf_keycache.c
+++ b/mysys/mf_keycache.c
@@ -2044,13 +2044,15 @@ restart:
         }
         else
         {
+          size_t block_mem_offset;
           /* There are some never used blocks, take first of them */
           DBUG_ASSERT(keycache->blocks_used <
                       (ulong) keycache->disk_blocks);
           block= &keycache->block_root[keycache->blocks_used];
+          block_mem_offset= 
+           ((size_t) keycache->blocks_used) * keycache->key_cache_block_size;
           block->buffer= ADD_TO_PTR(keycache->block_mem,
-                                    ((ulong) keycache->blocks_used*
-                                     keycache->key_cache_block_size),
+                                    block_mem_offset,
                                     uchar*);
           keycache->blocks_used++;
           DBUG_ASSERT(!block->next_used);