merge with 4.0

BitKeeper/etc/ignore:
  auto-union
VC++Files/comp_err/comp_err.dsp:
  Auto merged
VC++Files/my_print_defaults/my_print_defaults.dsp:
  Auto merged
VC++Files/myisampack/myisampack.dsp:
  Auto merged
acinclude.m4:
  Auto merged
innobase/buf/buf0buf.c:
  Auto merged
innobase/com/com0shm.c:
  Auto merged
innobase/data/data0data.c:
  Auto merged
innobase/ha/ha0ha.c:
  Auto merged
innobase/include/buf0buf.ic:
  Auto merged
innobase/include/dict0dict.h:
  Auto merged
innobase/include/ibuf0ibuf.h:
  Auto merged
innobase/include/lock0lock.h:
  Auto merged
innobase/include/mtr0log.h:
  Auto merged
innobase/include/mtr0mtr.h:
  Auto merged
innobase/include/os0proc.h:
  Auto merged
innobase/include/os0thread.h:
  Auto merged
innobase/include/srv0srv.h:
  Auto merged
innobase/include/sync0sync.h:
  Auto merged
innobase/lock/lock0lock.c:
  Auto merged
innobase/log/log0recv.c:
  Auto merged
innobase/mem/mem0dbg.c:
  Auto merged
innobase/mtr/mtr0mtr.c:
  Auto merged
innobase/os/os0proc.c:
  Auto merged
innobase/page/page0page.c:
  Auto merged
innobase/que/que0que.c:
  Auto merged
innobase/rem/rem0cmp.c:
  Auto merged
innobase/row/row0ins.c:
  Auto merged
innobase/row/row0mysql.c:
  Auto merged
innobase/srv/srv0start.c:
  Auto merged
innobase/sync/sync0sync.c:
  Auto merged
innobase/trx/trx0rec.c:
  Auto merged
innobase/trx/trx0trx.c:
  Auto merged
innobase/ut/ut0mem.c:
  Auto merged
innobase/ut/ut0ut.c:
  Auto merged
libmysql/libmysql.c:
  Auto merged
scripts/mysql_config.sh:
  Auto merged
sql/net_serv.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged

2 files changed, 0 insertions, 64 deletions

diff --git a/innobase/trx/trx0rec.c b/innobase/trx/trx0rec.c
index a0f500e51d7..e10f019ac13 100644
--- a/innobase/trx/trx0rec.c
+++ b/innobase/trx/trx0rec.c
@@ -41,47 +41,6 @@ trx_undof_page_add_undo_rec_log(
 	byte*	log_ptr;
 	ulint	len;
 
-#ifdef notdefined
-	ulint	i;
-	byte*	prev_rec_ptr;
-	byte*	ptr;
-	ulint	min_len;
-
-	ut_ad(new_free >= old_free + 4);
-
-	i = 0;
-	ptr = undo_page + old_free + 2;
-	
-	if (old_free > mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR
-					+ TRX_UNDO_PAGE_START)) {
-		prev_rec_ptr = undo_page + mach_read_from_2(ptr - 4) + 2;
-
-		min_len = ut_min(new_free - old_free - 4,
-				 (undo_page + old_free - 2) - prev_rec_ptr); 
-		for (;;) {
-			if (i >= min_len) {
-
-				break;
-			} else if ((*ptr == *prev_rec_ptr)
-				   || ((*ptr == *prev_rec_ptr + 1)
-				       && (ptr + 1 == suffix))) {
-				i++;
-				ptr++;
-				prev_rec_ptr++;
-			} else {
-				break;
-			}
-		}
-	}
-	
-	mlog_write_initial_log_record(undo_page, MLOG_UNDO_INSERT, mtr);
-
-	mlog_catenate_ulint(mtr, old_free, MLOG_2BYTES);
-
-	mlog_catenate_ulint_compressed(mtr, i);
-
-	mlog_catenate_string(mtr, ptr, new_free - old_free - 2 - i);
-#endif
 	log_ptr = mlog_open(mtr, 30 + MLOG_BUF_MARGIN);
 
 	if (log_ptr == NULL) {
diff --git a/innobase/trx/trx0trx.c b/innobase/trx/trx0trx.c
index 47927976851..0197e5cc05f 100644
--- a/innobase/trx/trx0trx.c
+++ b/innobase/trx/trx0trx.c
@@ -650,29 +650,6 @@ trx_commit_off_kernel(
 
 		if (undo) {
 			mutex_enter(&kernel_mutex);
-#ifdef notdefined
-			/* !!!!!!!!! There is a bug here: purge and rollback
-			need the whole stack of old record versions even if no
-			consistent read would need them!! This is because they
-			decide on the basis of the old versions when we can
-			remove delete marked secondary index records! */
-			
-			if (!undo->del_marks && (undo->size == 1)
-			    && (UT_LIST_GET_LEN(trx_sys->view_list) == 1)) {
-
-			    	/* There is no need to save the update undo
-			    	log: discard it; note that &mtr gets committed
-			    	while we must hold the kernel mutex and
-				therefore this optimization may add to the
-				contention of the kernel mutex. */
-
-			    	lsn = trx_undo_update_cleanup_by_discard(trx,
-									&mtr);
-				mutex_exit(&(rseg->mutex));
-
-			    	goto shortcut;
-			}
-#endif
 			trx->no = trx_sys_get_new_trx_no();
 			
 			mutex_exit(&kernel_mutex);