Push the patch of Jan Lindstrom: better comments
ha_innodb.cc:
  Partial fix for Bug #12263 : we let InnoDB always to perform a rollback on the trx object if MySQL closes a connection; but we do print a warning to the .err log if an InnoDB transaction was active; we may remove that print later, since the situation really is not a bug; MySQL just is not aware that some cursor operation started an InnoDB transaction


sql/ha_innodb.cc:
  Partial fix for Bug #12263 : we let InnoDB always to perform a rollback on the trx object if MySQL closes a connection; but we do print a warning to the .err log if an InnoDB transaction was active; we may remove that print later, since the situation really is not a bug; MySQL just is not aware that some cursor operation started an InnoDB transaction
sql/ha_innodb.h:
  Push the patch of Jan Lindstrom: better comments
innobase/trx/trx0trx.c:
  Push the patch of Jan Lindstrom: better comments
innobase/srv/srv0srv.c:
  Push the patch of Jan Lindstrom: better comments
innobase/srv/srv0start.c:
  Push the patch of Jan Lindstrom: better comments
innobase/row/row0sel.c:
  Push the patch of Jan Lindstrom: better comments
innobase/read/read0read.c:
  Push the patch of Jan Lindstrom: better comments
innobase/include/read0read.h:
  Push the patch of Jan Lindstrom: better comments
innobase/include/trx0trx.h:
  Push the patch of Jan Lindstrom: better comments