Use PAUSE instruction inside spinloop if it is available.

The patch was originally developed by Mikael Ronstrom <mikael@mysql.com>
and can be found here:
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2768
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2771
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2772
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2774
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2777
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2799
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2800

Approved by:	Heikki (rb://137)

Non functional change. s/Percona/Percona Inc./

(ISO 8859-1 encoded U+00AD SOFT HYPHEN) with a cheap ASCII substitute.

as this function is used within InnoDB Hot Backup.

with UNIV_HOTBACKUP.

Invoke os_get_os_version() at most once.

very similar to ha_search_and_delete_if_found().

This function is unused, but it could turn out to be a useful debugging aid.

to track down Issue #289.

or SET GLOBAL innodb_file_format_check=DEFAULT.

innodb_file_format.test: New test for innodb_file_format and
innodb_file_format_check.

innodb_file_format_name_validate(): Store the string in *save.
innodb_file_format_name_update(): Check the string again.

innodb_file_format_check_validate(): Store the string in *save.
innodb_file_format_check_update(): Check the string again.

Issue #282, rb://140 approved by Heikki Tuuri

Do not do arithmetics on void pointers.

Tolerate missing tablespaces (zip_size==ULINT_UNDEFINED).
buf_page_get_gen(): Add ut_ad(ut_is_2pow(zip_size)).

Issue #289, rb://136 approved by Sunny Bains

buf_fix_count.  This could explain Issue #156.
Tested by Michael.

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.
  ------------------------------------------------------------------------