Start prebuilt->trx before locking the table.  This should fix Issue #293
and could fix Issue #229.
Approved by Sunny (over IM).

SET GLOBAL innodb_commit_concurrency=DEFAULT. (Bug #45749)
When innodb_commit_concurrency is initially set nonzero,
DEFAULT would change it back to 0, triggering Bug #42101.
rb://139 approved by Heikki Tuuri.

This addresses Bug #44571 but does not fix it.
rb://135 approved by Sunny Bains.

Suggested by Marko.

Change the header file path from ../storage/innobase/include/
to ../include/. In the planned 5.1 + plugin release, the source
directory of the plugin will not be in storage/innobase.

Approved by: Heikki (IM)

for Hot Backup build (UNIV_HOTBACKUP defined).
This change should not affect !UNIV_HOTBACKUP build.

code bracketed between #ifdef UNIV_HOTBACKUP and #endif /* UNIV_HOTBACKUP */).
This change should not affect !UNIV_HOTBACKUP build.

ROW_FORMAT=DEFAULT, do not compare to get_row_type().
Without this change, fast index creation will be disabled
in recent versions of MySQL 5.1.

block_mutex being possibly uninitialized.

Add ChangeLog entry for r5342.

  ------------------------------------------------------------------------
  r5233 | marko | 2009-06-03 15:12:44 +0300 (Wed, 03 Jun 2009) | 11 lines

  branches/5.1: Merge the test case from r5232 from branches/5.0:
    ------------------------------------------------------------------------
    r5232 | marko | 2009-06-03 14:31:04 +0300 (Wed, 03 Jun 2009) | 21 lines

    branches/5.0: Merge r3590 from branches/5.1 in order to fix Bug #40565
    (Update Query Results in "1 Row Affected" But Should Be "Zero Rows").

    Also, add a test case for Bug #40565.

    rb://128 approved by Heikki Tuuri
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------
  r5243 | sunny | 2009-06-04 03:17:14 +0300 (Thu, 04 Jun 2009) | 14 lines

  branches/5.1: When the InnoDB and MySQL data dictionaries go out of sync, before
  the bug fix we would assert on missing autoinc columns. With this fix we allow
  MySQL to open the table but set the next autoinc value for the column to the
  MAX value. This effectively disables the next value generation. INSERTs will
  fail with a generic AUTOINC failure. However, the user should be able to
  read/dump the table, set the column values explicitly, use ALTER TABLE to
  set the next autoinc value and/or sync the two data dictionaries to resume
  normal operations.

  Fix Bug#44030 Error: (1500) Couldn't read the MAX(ID) autoinc value from the
  index (PRIMARY)

  rb://118
  ------------------------------------------------------------------------
  r5252 | sunny | 2009-06-04 10:16:24 +0300 (Thu, 04 Jun 2009) | 2 lines

  branches/5.1: The version of the result file checked in was broken in r5243.
  ------------------------------------------------------------------------
  r5259 | vasil | 2009-06-05 10:29:16 +0300 (Fri, 05 Jun 2009) | 7 lines

  branches/5.1:

  Remove the word "Error" from the printout because the mysqltest suite
  interprets it as an error and thus the innodb-autoinc test fails.

  Approved by:	Sunny (via IM)
  ------------------------------------------------------------------------
  r5339 | marko | 2009-06-17 11:01:37 +0300 (Wed, 17 Jun 2009) | 2 lines

  branches/5.1: Add missing #include "mtr0log.h" so that the code compiles
  with -DUNIV_MUST_NOT_INLINE.

  (null merge; this had already been committed in branches/zip)
  ------------------------------------------------------------------------
  r5340 | marko | 2009-06-17 12:11:49 +0300 (Wed, 17 Jun 2009) | 4 lines

  branches/5.1: row_unlock_for_mysql(): When the clustered index is unknown,
  refuse to unlock the record.
  (Bug #45357, caused by the fix of Bug #39320).
  rb://132 approved by Sunny Bains.
  ------------------------------------------------------------------------

innodb_buffer_pool_pages_total for r5320.

Add ChangeLog entries for r5283 and r5320.

The function must switch on the block state anyway.

buf_pool->n_pend_unzip while only holding buf_pool_mutex.

This patch changes the following defaults:

max_dirty_pages_pct: default from 90 to 75. max allowed from 100 to 99
additional_mem_pool_size: default from 1 to 8 MB
buffer_pool_size: default from 8 to 128 MB
log_buffer_size: default from 1 to 8 MB
read_io_threads/write_io_threads: default from 1 to 4

The log file sizes are untouched because of upgrade issues

Reviewed by: Heikki

because ulint is wrong on Win64.
Pointed out by Vladislav Vaintroub <wlad@sun.com>.

rb://130

Enable Group Commit functionality that was broken in 5.0 when
distributed transactions were introduced.

Reviewed by: Heikki

Non functional change:

Added legal notices acknowledging percona contribution to the multiple
IO helper threads patch i.e.: r5262

Add ChangeLog entry for r5262.

Add ChangeLog entry for r5261.

Whitespace cleanup.

Enable functionality to have multiple background io helper threads.
This patch is based on percona contributions.

More details about this patch will be written at:
https://svn.innodb.com/innobase/MultipleBackgroundThreads

The patch essentially does the following:

expose following knobs:
innodb_read_io_threads = [1 - 64] default 1
innodb_write_io_threads = [1 - 64] default 1

deprecate innodb_file_io_threads (this parameter was relevant only on windows)

Internally it allows multiple segments for read and write IO request arrays
where one thread works on one segement.

Submitted by:	Inaam (rb://124)
Approved by:	Heikki (rb://124)

Fix Mantis Issue#244 fix bug in linear read ahead (no check on access pattern)

The changes are:

1) Take into account access pattern when deciding whether or not to do linear
  read ahead.
2) Expose a knob innodb_read_ahead_factor = [0-64] default (8), dynamic,
  global to control linear read ahead behvior
3) Disable random read ahead. Keep the code for now.

Submitted by:	Inaam (rb://122)
Approved by:	Heikki (rb://122)

  ------------------------------------------------------------------------
  r5150 | vasil | 2009-05-27 18:56:03 +0300 (Wed, 27 May 2009) | 4 lines

  branches/5.1:

  Whitespace fixup.
  ------------------------------------------------------------------------
  r5191 | vasil | 2009-05-30 17:46:05 +0300 (Sat, 30 May 2009) | 19 lines

  branches/5.1:

  Merge a change from MySQL (this fixes the failing innodb_mysql test):

    ------------------------------------------------------------
    revno: 1810.3894.10
    committer: Sergey Glukhov <Sergey.Glukhov@sun.com>
    branch nick: mysql-5.0-bugteam
    timestamp: Tue 2009-05-19 11:32:21 +0500
    message:
      Bug#39793 Foreign keys not constructed when column has a '#' in a comment or default value
      Internal InnoDN FK parser does not recognize '\'' as quotation symbol.
      Suggested fix is to add '\'' symbol check for quotation condition
      (dict_strip_comments() function).
    modified:
      innobase/dict/dict0dict.c
      mysql-test/r/innodb_mysql.result
      mysql-test/t/innodb_mysql.test
  ------------------------------------------------------------------------
  r5233 | marko | 2009-06-03 15:12:44 +0300 (Wed, 03 Jun 2009) | 11 lines

  branches/5.1: Merge the test case from r5232 from branches/5.0:
    ------------------------------------------------------------------------
    r5232 | marko | 2009-06-03 14:31:04 +0300 (Wed, 03 Jun 2009) | 21 lines

    branches/5.0: Merge r3590 from branches/5.1 in order to fix Bug #40565
    (Update Query Results in "1 Row Affected" But Should Be "Zero Rows").

    Also, add a test case for Bug #40565.

    rb://128 approved by Heikki Tuuri
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------

Make the rec parameter of mlog_open_and_write_index() const.

  ------------------------------------------------------------------------
  r5126 | vasil | 2009-05-26 16:57:12 +0300 (Tue, 26 May 2009) | 9 lines

  branches/5.1:

  Preparation for the fix of
  Bug#45097 Hang during recovery, redo logs for doublewrite buffer pages

  Non-functional change: move FSP_* macros from fsp0fsp.h to a new file
  fsp0types.h. This is needed in order to be able to use FSP_EXTENT_SIZE
  in mtr0log.ic.
  ------------------------------------------------------------------------
  r5127 | vasil | 2009-05-26 17:05:43 +0300 (Tue, 26 May 2009) | 9 lines

  branches/5.1:

  Preparation for the fix of
  Bug#45097 Hang during recovery, redo logs for doublewrite buffer pages

  Do not include unnecessary headers mtr0log.h and fut0lst.h in trx0sys.h
  and include fsp0fsp.h just before it is needed. This is needed in order
  to be able to use TRX_SYS_SPACE in mtr0log.ic.
  ------------------------------------------------------------------------
  r5128 | vasil | 2009-05-26 17:26:37 +0300 (Tue, 26 May 2009) | 7 lines

  branches/5.1:

  Fix Bug#45097 Hang during recovery, redo logs for doublewrite buffer pages

  Do not write redo log for the pages in the doublewrite buffer. Also, do not
  make a dummy change to the page because this is not needed.
  ------------------------------------------------------------------------

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