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272 commits

Author SHA1 Message Date
marko
d118d29eb3 branches/innodb+: Merge revisions 4006:4060 from branches/zip:
------------------------------------------------------------------------
  r4008 | vasil | 2009-01-20 17:01:08 +0200 (Tue, 20 Jan 2009) | 4 lines

  branches/zip:

  Add ChangeLog entries for the bugfixes in r4004 and r4005.

  ------------------------------------------------------------------------
  r4027 | marko | 2009-01-23 11:04:49 +0200 (Fri, 23 Jan 2009) | 1 line

  branches/zip: Remove some redundant #include statements.
  ------------------------------------------------------------------------
  r4028 | marko | 2009-01-23 11:26:10 +0200 (Fri, 23 Jan 2009) | 13 lines

  branches/zip: Enclose some more unused code in #ifdef UNIV_LOG_ARCHIVE.
  This will help trim the dependencies of InnoDB Hot Backup.

  recv_recovery_from_checkpoint_start(): Rename to
  recv_recovery_from_checkpoint_start_func(), and remove the two first
  parameters unless UNIV_LOG_ARCHIVE is defined.  Define and use
  the auxiliary macros TYPE_CHECKPOINT and LIMIT_LSN in the function.

  struct recv_sys_struct: Remove archive_group unless UNIV_LOG_ARCHIVE
  is defined.

  Do not define LOG_ARCHIVE unless UNIV_LOG_ARCHIVE is defined.
  ------------------------------------------------------------------------
  r4029 | marko | 2009-01-23 14:07:38 +0200 (Fri, 23 Jan 2009) | 1 line

  branches/zip: Remove some redundant #include directives.
  ------------------------------------------------------------------------
  r4030 | marko | 2009-01-23 15:31:36 +0200 (Fri, 23 Jan 2009) | 2 lines

  branches/zip: buf_page_get_gen(): Remove the unused mode BUF_GET_NOWAIT.
  This was noticed while investigating Issue #160.
  ------------------------------------------------------------------------
  r4033 | marko | 2009-01-23 15:49:04 +0200 (Fri, 23 Jan 2009) | 16 lines

  branches/zip: Merge revisions 4005:4032 from branches/5.1:

    ------------------------------------------------------------------------
    r4032 | marko | 2009-01-23 15:43:51 +0200 (Fri, 23 Jan 2009) | 10 lines

    branches/5.1: Merge r4031 from branches/5.0:

    btr_search_drop_page_hash_when_freed(): Check if buf_page_get_gen()
    returns NULL.  The page may have been evicted from the buffer pool
    between buf_page_peek_if_search_hashed() and buf_page_get_gen(),
    because the buffer pool mutex will be released between these two calls.
    (Bug #42279, Issue #160)

    rb://82 approved by Heikki Tuuri
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------
  r4034 | marko | 2009-01-26 16:16:39 +0200 (Mon, 26 Jan 2009) | 2 lines

  branches/zip: buf_page_get_gen(): Fix a "possibly uninitialized" warning
  that was introduced in r4030.
  ------------------------------------------------------------------------
  r4036 | marko | 2009-01-26 22:33:20 +0200 (Mon, 26 Jan 2009) | 22 lines

  branches/zip: In r988, the function buf_block_align() was enclosed
  within UNIV_DEBUG. The two remaining callers in non-debug builds,
  btr_search_guess_on_hash() and btr_search_validate(), were rewritten
  to call buf_page_hash_get().

  To implement support for a resizeable buffer pool, the function
  buf_block_align() had been rewritten to perform a page hash lookup in
  the buffer pool. The caller was also made responsible for holding the
  buffer pool mutex.

  Because the page hash lookup is expensive and it has to be done while
  holding the buffer pool mutex, implement buf_block_align() by pointer
  arithmetics again, and make btr_search_guess_on_hash() call it. Note
  that this will have to be adjusted if the interface to the resizeable
  buffer pool is actually implemented.

  rb://83 approved by Heikki Tuuri, to address Issue #161.

  As a deviation from the approved patch, this patch also makes
  btr_search_validate() (invoked by CHECK TABLE) check that
  buf_pool->page_hash is consistent with buf_block_align().
  ------------------------------------------------------------------------
  r4039 | vasil | 2009-01-27 08:04:17 +0200 (Tue, 27 Jan 2009) | 5 lines

  branches/zip:

  Adjust the paths in innodb_file_per_table.diff with a recent rename of
  the test/result files in the MySQL tree.
  ------------------------------------------------------------------------
  r4042 | marko | 2009-01-27 10:05:24 +0200 (Tue, 27 Jan 2009) | 2 lines

  branches/zip: buf_LRU_invalidate_tablespace(): Fix a race condition:
  read zip_size while still holding block_mutex.
  ------------------------------------------------------------------------
  r4045 | marko | 2009-01-28 00:31:17 +0200 (Wed, 28 Jan 2009) | 8 lines

  branches/zip: btr_search_validate(): Fix a bogus UNIV_DEBUG
  assertion failure that was accidentally introduced in r4036.
  Instead of calling buf_block_get_frame(), which asserts that the
  block must be buffer-fixed, access block->frame directly.  That
  is safe, because changes of block->page.state are protected by
  the buffer pool mutex, which we are holding.

  This bug was reported by Michael.
  ------------------------------------------------------------------------
  r4046 | marko | 2009-01-28 00:33:20 +0200 (Wed, 28 Jan 2009) | 2 lines

  branches/zip: Revert the change to univ.i that was accidentally
  committed in r4045.
  ------------------------------------------------------------------------
  r4047 | marko | 2009-01-28 00:46:13 +0200 (Wed, 28 Jan 2009) | 6 lines

  branches/zip: btr_search_validate(): Fix an assertion failure that was
  introduced in r4036.
  Do not call buf_block_get_space(), buf_block_get_page_no()
  unless the block state is BUF_BLOCK_FILE_PAGE.

  This bug was reported by Michael.
  ------------------------------------------------------------------------
  r4050 | vasil | 2009-01-28 08:21:44 +0200 (Wed, 28 Jan 2009) | 5 lines

  branches/zip:

  Adjust the paths in innodb_lock_wait_timeout.diff with a recent rename of
  the test/result files in the MySQL tree.
  ------------------------------------------------------------------------
  r4051 | marko | 2009-01-28 14:35:49 +0200 (Wed, 28 Jan 2009) | 1 line

  branches/zip: trx0sys.ic: Remove unnecessary #include <data0type.h>.
  ------------------------------------------------------------------------
  r4052 | marko | 2009-01-28 15:21:45 +0200 (Wed, 28 Jan 2009) | 5 lines

  branches/zip: Enclose some functions inside #ifdef UNIV_HOTBACKUP:

  ut_sprintf_timestamp_without_extra_chars(), ut_get_year_month_day(),
  log_reset_first_header_and_checkpoint(): These functions are only used
  in InnoDB Hot Backup.
  ------------------------------------------------------------------------
  r4056 | calvin | 2009-01-29 03:06:41 +0200 (Thu, 29 Jan 2009) | 33 lines

  branches/zip: Merge revisions 4032:4035 from branches/5.1

  All InnoDB related tests passed on Windows, except
  known failure in partition_innodb_semi_consistent.

  The inadvertent change to btr0sea.c in this commit is reverted in r4060.

    ------------------------------------------------------------------------
    r4035 | vasil | 2009-01-26 09:26:25 -0600 (Mon, 26 Jan 2009) | 23 lines

    branches/5.1:

    Merge a change from MySQL:

      ------------------------------------------------------------
      revno: 2646.161.4
      committer: Tatiana A. Nurnberg <azundris@mysql.com>
      branch nick: 51-31177v2
      timestamp: Mon 2009-01-12 06:32:49 +0100
      message:
        Bug#31177: Server variables can't be set to their current values

        Bounds-checks and blocksize corrections were applied to user-input,
        but constants in the server were trusted implicitly. If these values
        did not actually meet the requirements, the user could not set change
        a variable, then set it back to the (wonky) factory default or maximum
        by explicitly specifying it (SET <var>=<value> vs SET <var>=DEFAULT).

        Now checks also apply to the server's presets. Wonky values and maxima
        get corrected at startup. Consequently all non-offsetted values the user
        sees are valid, and users can set the variable to that exact value if
        they so desire.
  ------------------------------------------------------------------------
  r4060 | marko | 2009-01-29 09:39:04 +0200 (Thu, 29 Jan 2009) | 1 line

  branches/zip: btr0sea.c: Revert the inadvertent change made in r4056.
  ------------------------------------------------------------------------
2009-01-29 09:47:07 +00:00
marko
2ae364a5ec branches/innodb+: Merge revisions 3931:4006 from branches/zip:
------------------------------------------------------------------------
  r3938 | marko | 2009-01-15 10:28:23 +0200 (Thu, 15 Jan 2009) | 3 lines

  branches/zip: buf_LRU_invalidate_tablespace(), buf_LRU_free_block():
  Add comments and assertions that buf_LRU_block_remove_hashed_page()
  will release block_mutex when it returns BUF_BLOCK_ZIP_FREE.
  ------------------------------------------------------------------------
  r3939 | marko | 2009-01-15 10:37:51 +0200 (Thu, 15 Jan 2009) | 7 lines

  branches/zip: buf0lru.c: Improve debug assertions.

  buf_LRU_block_free_non_file_page(): ut_ad(block) before dereferencing block.

  buf_LRU_block_remove_hashed_page(): Forbid buf_pool_mutex_exit() while
  calling buf_buddy_free().  Callers of buf_LRU_block_remove_hashed_page()
  assume that the buffer pool mutex will not be released and reacquired.
  ------------------------------------------------------------------------
  r3944 | vasil | 2009-01-15 21:15:00 +0200 (Thu, 15 Jan 2009) | 4 lines

  branches/zip:

  Add ChangeLog entries for the bug fixes in r3911 and r3930.
  ------------------------------------------------------------------------
  r3958 | marko | 2009-01-16 14:53:40 +0200 (Fri, 16 Jan 2009) | 8 lines

  branches/zip: Add assertions that the kernel_mutex is being held
  while accessing table->locks or un_member.tab_lock.locks.
  This is related to Issue #158.  According to static analysis,
  the added debug assertions should always hold.

  lock_table_has_to_wait_in_queue(), lock_queue_iterator_reset(),
  lock_queue_iterator_get_prev(), add_trx_relevant_locks_to_cache(),
  fetch_data_into_cache(): Add ut_ad(mutex_own(&kernel_mutex)).
  ------------------------------------------------------------------------
  r4006 | marko | 2009-01-20 16:29:22 +0200 (Tue, 20 Jan 2009) | 33 lines

  branches/zip: Merge revisions 3930:4005 from branches/5.1:

    ------------------------------------------------------------------------
    r4004 | marko | 2009-01-20 16:19:00 +0200 (Tue, 20 Jan 2009) | 12 lines

    branches/5.1: Merge r4003 from branches/5.0:

    rec_set_nth_field(): When the field already is SQL null,
    do nothing when it is being changed to SQL null. (Bug #41571)

    Normally, MySQL does not pass "do-nothing" updates to the storage engine.
    When it does and a column of an InnoDB table that is in ROW_FORMAT=COMPACT
    is being updated from NULL to NULL, the InnoDB buffer pool will be corrupted
    without this fix.

    rb://81 approved by Heikki Tuuri
    ------------------------------------------------------------------------
    r4005 | marko | 2009-01-20 16:22:36 +0200 (Tue, 20 Jan 2009) | 8 lines

    branches/5.1: lock_is_table_exclusive(): Acquire kernel_mutex before
    accessing table->locks and release kernel_mutex before returning from
    the function.  This fixes a portential race condition in the
    "commit every 10,000 rows" in ALTER TABLE, CREATE INDEX, DROP INDEX,
    and OPTIMIZE TABLE. (Bug #42152)

    rb://80 approved by Heikki Tuuri
    ------------------------------------------------------------------------
2009-01-20 14:34:02 +00:00
marko
86b8525254 branches/innodb+: Merge revisions 3602:3931 from branches/zip:
------------------------------------------------------------------------
  r3607 | marko | 2008-12-30 22:33:31 +0200 (Tue, 30 Dec 2008) | 20 lines

  branches/zip: Remove the dependency on the MySQL HASH table implementation.
  Use the InnoDB hash table for keeping track of INNOBASE_SHARE objects.

  struct st_innobase_share: Make table_name const uchar*.  Add the member
  table_name_hash.

  innobase_open_tables: Change the type from HASH to hash_table_t*.

  innobase_get_key(): Remove.

  innobase_fold_name(): New function, for computing the fold value for the
  InnoDB hash table.

  get_share(), free_share(): Use the InnoDB hash functions.

  innobase_end(): Free innobase_open_tables before shutting down InnoDB.
  Shutting down InnoDB will invalidate all memory allocated via InnoDB.

  rb://65 approved by Heikki Tuuri.  This addresses Issue #104.
  ------------------------------------------------------------------------
  r3608 | marko | 2008-12-30 22:45:04 +0200 (Tue, 30 Dec 2008) | 22 lines

  branches/zip: When setting the PAGE_LEVEL of a compressed B-tree page
  from or to 0, compress the page at the same time.  This is necessary,
  because the column information stored on the compressed page will
  differ between leaf and non-leaf pages.  Leaf pages are identified by
  PAGE_LEVEL=0.  This bug was reported as Issue #150.

  Document the similarity between btr_page_create() and
  btr_page_empty().  Make the function signature of btr_page_empty()
  identical with btr_page_create().  (This will add the parameter "level".)

  btr_root_raise_and_insert(): Replace some code with a call to
  btr_page_empty().

  btr_attach_half_pages(): Assert that the page level has already been
  set on both block and new_block.  Do not set it again.

  btr_discard_only_page_on_level(): Document that this function is
  probably never called.  Make it work on any height tree.  (Tested on
  2-high tree by disabling btr_lift_page_up().)

  rb://68
  ------------------------------------------------------------------------
  r3612 | marko | 2009-01-02 11:02:44 +0200 (Fri, 02 Jan 2009) | 14 lines

  branches/zip: Merge c2998 from branches/6.0, so that the same InnoDB Plugin
  source tree will work both under 5.1 and 6.0.  Do not add the test case
  innodb_ctype_ldml.test, because it would not work under MySQL 5.1.

  Refuse to create tables whose columns contain collation IDs above 255.
  This removes an assertion failure that was introduced in WL#4164
  (Two-byte collation IDs).

  create_table_def(): Do not fail an assertion if a column contains a
  charset-collation ID greater than 256. Instead, issue an error and
  refuse to create the table.

  The original change (branches/6.0 r2998) was rb://51 approved by Calvin Sun.
  ------------------------------------------------------------------------
  r3613 | inaam | 2009-01-02 15:10:50 +0200 (Fri, 02 Jan 2009) | 6 lines

  branches/zip: Implement the parameter innodb_use_sys_malloc
  (false by default), for disabling InnoDB's internal memory allocator
  and using system malloc/free instead.

  rb://62 approved by Marko
  ------------------------------------------------------------------------
  r3614 | marko | 2009-01-02 15:55:12 +0200 (Fri, 02 Jan 2009) | 1 line

  branches/zip: ChangeLog: Document r3608 and r3613.
  ------------------------------------------------------------------------
  r3615 | marko | 2009-01-02 15:57:51 +0200 (Fri, 02 Jan 2009) | 1 line

  branches/zip: ChangeLog: Clarify the impact of r3608.
  ------------------------------------------------------------------------
  r3616 | marko | 2009-01-03 00:23:30 +0200 (Sat, 03 Jan 2009) | 1 line

  branches/zip: srv_suspend_mysql_thread(): Add some clarifying comments.
  ------------------------------------------------------------------------
  r3618 | marko | 2009-01-05 12:54:53 +0200 (Mon, 05 Jan 2009) | 15 lines

  branches/zip: Merge revisions 3598:3601 from branches/5.1:

    ------------------------------------------------------------------------
    r3601 | marko | 2008-12-22 16:05:19 +0200 (Mon, 22 Dec 2008) | 9 lines

    branches/5.1: Make
    SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED
    a true replacement of SET GLOBAL INNODB_LOCKS_UNSAFE_FOR_BINLOG=1.
    This fixes an error that was introduced in r370, causing
    semi-consistent read not to not unlock rows in READ COMMITTED mode.
    (Bug #41671, Issue #146)

    rb://67 approved by Heikki Tuuri
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------
  r3623 | vasil | 2009-01-06 09:56:32 +0200 (Tue, 06 Jan 2009) | 7 lines

  branches/zip:

  Add patch to fix the failing main.variables mysql-test. It started failing
  after the variable innodb_use_sys_malloc was added because it matches
  '%alloc%' and the test is badly written and expects that no new variables
  like that will ever be added.
  ------------------------------------------------------------------------
  r3795 | marko | 2009-01-07 16:17:47 +0200 (Wed, 07 Jan 2009) | 7 lines

  branches/zip: row_merge_tuple_cmp(): Do not report a duplicate key value
  if any of the fields are NULL.  While the tuples are equal in the
  sorting order, SQL NULL is defined to be logically inequal to
  anything else. (Bug #41904)

  rb://70 approved by Heikki Tuuri
  ------------------------------------------------------------------------
  r3796 | marko | 2009-01-07 16:19:32 +0200 (Wed, 07 Jan 2009) | 1 line

  branches/zip: Add the tests that were forgotten from r3795.
  ------------------------------------------------------------------------
  r3797 | marko | 2009-01-07 16:22:18 +0200 (Wed, 07 Jan 2009) | 22 lines

  branches/zip: Do not call trx_allocate_for_mysql() directly, but use
  helper functions that initialize some members of the transaction struct.
  (Bug #41680)

  innobase_trx_init(): New function: initialize some fields of a
  transaction struct from a MySQL THD object.

  innobase_trx_allocate(): New function: allocate and initialize a
  transaction struct.

  check_trx_exists(): Use the above two functions.

  ha_innobase::delete_table(), ha_innobase::rename_table(),
  ha_innobase::add_index(), ha_innobase::final_drop_index():
  Use innobase_trx_allocate().

  innobase_drop_database(): In the Windows plugin, initialize the trx_t
  specially, because the THD is not available.  Otherwise, use
  innobase_trx_allocate().

  rb://69 accepted by Heikki Tuuri
  ------------------------------------------------------------------------
  r3798 | marko | 2009-01-07 16:42:42 +0200 (Wed, 07 Jan 2009) | 8 lines

  branches/zip: row_merge_drop_temp_indexes(): Do not lock the rows of
  SYS_INDEXES when looking for partially created indexes.  Use the
  transaction isolation level READ UNCOMMITTED to avoid interfering with
  locks held by incomplete transactions that will be rolled back in a
  subsequent step in the recovery.  (Issue #152)

  Approved by Heikki Tuuri
  ------------------------------------------------------------------------
  r3852 | vasil | 2009-01-08 22:10:10 +0200 (Thu, 08 Jan 2009) | 4 lines

  branches/zip:

  Add ChangeLog entries for r3795 r3796 r3797 r3798.

  ------------------------------------------------------------------------
  r3866 | marko | 2009-01-09 15:09:51 +0200 (Fri, 09 Jan 2009) | 2 lines

  branches/zip: buf_flush_try_page(): Move some common code from each
  switch case before the switch block.
  ------------------------------------------------------------------------
  r3867 | marko | 2009-01-09 15:13:14 +0200 (Fri, 09 Jan 2009) | 2 lines

  branches/zip: buf_flush_try_page(): Introduce the variable is_compressed
  for caching the result of buf_page_get_state(bpage) == BUF_BLOCK_FILE_PAGE.
  ------------------------------------------------------------------------
  r3868 | marko | 2009-01-09 15:40:11 +0200 (Fri, 09 Jan 2009) | 4 lines

  branches/zip: buf_flush_insert_into_flush_list(),
  buf_flush_insert_sorted_into_flush_list(): Remove unused code.
  Change the parameter to buf_block_t* block and assert that
  block->state == BUF_BLOCK_FILE_PAGE.  This is part of Issue #155.
  ------------------------------------------------------------------------
  r3873 | marko | 2009-01-09 22:27:40 +0200 (Fri, 09 Jan 2009) | 17 lines

  branches/zip: Some non-functional changes related to Issue #155.

  buf_page_struct: Note that space and offset are also protected by
  buf_pool_mutex.  They are only assigned to by
  buf_block_set_file_page().  Thus, it suffices for buf_flush_batch() to
  hold just buf_pool_mutex when checking these fields.

  buf_flush_try_page(): Rename "locked" to "is_s_latched", per Heikki's request.

  buf_flush_batch(): Move the common statement mutex_exit(block_mutex)
  from all if-else if-else branches before the if block.  Remove the
  redundant test (buf_pool->init_flush[flush_type] == FALSE) that was
  apparently copied from buf_flush_write_complete().

  buf_flush_write_block_low(): Note why it is safe not to hold buf_pool_mutex
  or block_mutex.  Enumerate the assumptions in debug assertions.
  ------------------------------------------------------------------------
  r3874 | marko | 2009-01-09 23:09:06 +0200 (Fri, 09 Jan 2009) | 4 lines

  branches/zip: Add comments related to Issue #155.

  buf_flush_try_page(): Note why it is safe to access bpage without
  holding buf_pool_mutex or block_mutex.
  ------------------------------------------------------------------------
  r3875 | marko | 2009-01-09 23:15:12 +0200 (Fri, 09 Jan 2009) | 11 lines

  branches/zip: Non-functional change: Tighten debug assertions and
  remove dead code.

  buf_flush_ready_for_flush(), buf_flush_try_page(): Assert that
  flush_type is one of BUF_FLUSH_LRU or BUF_FLUSH_LIST.  The flush_type
  comes from buf_flush_batch(), which already asserts this.  The
  assertion holds for all calls in the source code.

  buf_flush_try_page(): Remove the dead case BUF_FLUSH_SINGLE_PAGE
  of switch (flush_type).
  ------------------------------------------------------------------------
  r3879 | marko | 2009-01-12 12:46:44 +0200 (Mon, 12 Jan 2009) | 14 lines

  branches/zip: Simplify the flushing of dirty pages from the buffer pool.

  buf_flush_try_page(): Rename to buf_flush_page(), and change the
  return type to void.  Replace the parameters space, offset with bpage,
  and remove the second page hash lookup.  Note and assert that both
  buf_pool_mutex and block_mutex must now be held upon entering the
  function.  They will still be released by this function.

  buf_flush_try_neighbors(): Replace buf_flush_try_page() with
  buf_flush_page().  Make the logic easier to follow by not negating the
  precondition of buf_flush_page().

  rb://73 approved by Sunny Bains.  This is related to Issue #157.
  ------------------------------------------------------------------------
  r3880 | marko | 2009-01-12 13:24:37 +0200 (Mon, 12 Jan 2009) | 2 lines

  branches/zip: buf_flush_page(): Fix a comment that should have been fixed
  in r3879.  Spotted by Sunny.
  ------------------------------------------------------------------------
  r3881 | marko | 2009-01-12 14:25:22 +0200 (Mon, 12 Jan 2009) | 2 lines

  branches/zip: buf_page_get_newest_modification(): Use the block mutex
  instead of the buffer pool mutex.  This is related to Issue #157.
  ------------------------------------------------------------------------
  r3882 | marko | 2009-01-12 14:40:08 +0200 (Mon, 12 Jan 2009) | 3 lines

  branches/zip: struct mtr_struct: Remove the unused field magic_n
  unless UNIV_DEBUG is defined.  mtr->magic_n is only assigned to
  and checked in UNIV_DEBUG builds.
  ------------------------------------------------------------------------
  r3883 | marko | 2009-01-12 14:48:59 +0200 (Mon, 12 Jan 2009) | 1 line

  branches/zip: Non-functional change: Use ut_d when assigning to mtr->state.
  ------------------------------------------------------------------------
  r3884 | marko | 2009-01-12 18:56:11 +0200 (Mon, 12 Jan 2009) | 16 lines

  branches/zip: Non-functional change: Add some debug assertions and comments.

  buf_page_t: Note that the LRU fields are protected by buf_pool_mutex
  only, not block->mutex or buf_pool_zip_mutex.

  buf_page_get_freed_page_clock(): Note that this is sometimes invoked
  without mutex protection.

  buf_pool_get_oldest_modification(): Note that the result may be out of
  date.

  buf_page_get_LRU_position(), buf_page_is_old(): Assert that the buffer
  pool mutex is being held.

  buf_page_release(): Assert that dirty blocks are in the flush list.
  ------------------------------------------------------------------------
  r3896 | marko | 2009-01-13 09:30:26 +0200 (Tue, 13 Jan 2009) | 2 lines

  branches/zip: buf_flush_try_neighbors(): Fix a bug
  that was introduced in r3879 (rb://73).
  ------------------------------------------------------------------------
  r3900 | marko | 2009-01-13 10:32:24 +0200 (Tue, 13 Jan 2009) | 1 line

  branches/zip: Fix some comments to say buf_pool_mutex.
  ------------------------------------------------------------------------
  r3907 | marko | 2009-01-13 11:54:01 +0200 (Tue, 13 Jan 2009) | 3 lines

  branches/zip: row_merge_create_temporary_table(): On error,
  row_create_table_for_mysql() already frees new_table.
  Do not attempt to free it again.
  ------------------------------------------------------------------------
  r3908 | marko | 2009-01-13 12:34:32 +0200 (Tue, 13 Jan 2009) | 1 line

  branches/zip: Enable HASH_ASSERT_OWNED independently of UNIV_SYNC_DEBUG.
  ------------------------------------------------------------------------
  r3914 | marko | 2009-01-13 21:46:22 +0200 (Tue, 13 Jan 2009) | 37 lines

  branches/zip: In hash table lookups, assert that the traversed items
  satisfy some conditions when UNIV_DEBUG is defined.

  HASH_SEARCH(): New parameter: ASSERTION. All users will pass an appropriate
  ut_ad() or nothing.

  dict_table_add_to_columns(): Assert that the table being added to the data
  dictionary cache is not already being pointed to by the name_hash and
  id_hash tables.

  HASH_SEARCH_ALL(): New macro, for use in dict_table_add_to_columns().

  dict_mem_table_free(): Set ut_d(table->cached = FALSE), so that we can
  check ut_ad(table->cached) when traversing the hash tables, as in
  HASH_SEARCH(name_hash, dict_sys->table_hash, ...) and
  HASH_SEARCH(id_hash, dict_sys->table_id_hash, ...).

  dict_table_get_low(), dict_table_get_on_id_low(): Assert
  ut_ad(!table || table->cached).

  fil_space_get_by_id(): Check ut_ad(space->magic_n == FIL_SPACE_MAGIC_N)
  in HASH_SEARCH(hash, fil_system->spaces, ...).

  fil_space_get_by_name(): Check ut_ad(space->magic_n == FIL_SPACE_MAGIC_N)
  in HASH_SEARCH(name_hash, fil_system->name_hash, ...).

  buf_buddy_block_free(): Check that the blocks are in valid state in
  HASH_SEARCH(hash, buf_pool->zip_hash, ...).

  buf_page_hash_get(): Check that the blocks are in valid state in
  HASH_SEARCH(hash, buf_pool->page_hash, ...).

  get_share(), free_share(): Check ut_ad(share->use_count > 0) in
  HASH_SEARCH(table_name_hash, innobase_open_tables, ...).

  This was posted as rb://75 for tracking down errors similar to Issue #153.
  ------------------------------------------------------------------------
  r3931 | marko | 2009-01-14 16:06:22 +0200 (Wed, 14 Jan 2009) | 26 lines

  branches/zip: Merge revisions 3601:3930 from branches/5.1:

    ------------------------------------------------------------------------
    r3911 | sunny | 2009-01-13 14:15:24 +0200 (Tue, 13 Jan 2009) | 13 lines

    branches/5.1: Fix Bug#38187 Error 153 when creating savepoints
    InnoDB previously treated savepoints as a stack e.g.,
      SAVEPOINT a;
      SAVEPOINT b;
      SAVEPOINT c;
      SAVEPOINT b; <- This would delete b and c.

    This fix changes the behavior to:
      SAVEPOINT a;
      SAVEPOINT b;
      SAVEPOINT c;
      SAVEPOINT b; <- Does not delete savepoint c
    ------------------------------------------------------------------------
    r3930 | marko | 2009-01-14 15:51:30 +0200 (Wed, 14 Jan 2009) | 4 lines

    branches/5.1: dict_load_table(): If dict_load_indexes() fails,
    invoke dict_table_remove_from_cache() instead of dict_mem_table_free(),
    so that the data dictionary will not point to freed data.
    (Bug #42075, Issue #153, rb://76 approved by Heikki Tuuri)
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------
2009-01-14 14:25:45 +00:00
marko
82cfb40dab branches/innodb+: Merge revisions 3544:3575 from branches/zip:
------------------------------------------------------------------------
  r3572 | marko | 2008-12-17 11:19:56 +0200 (Wed, 17 Dec 2008) | 3 lines
  Changed paths:
     M /branches/zip/ChangeLog
     M /branches/zip/btr/btr0sea.c
     M /branches/zip/buf/buf0buf.c
     M /branches/zip/buf/buf0lru.c
     M /branches/zip/ha/ha0ha.c
     M /branches/zip/ha/hash0hash.c
     M /branches/zip/include/buf0buf.h
     M /branches/zip/include/ha0ha.h
     M /branches/zip/include/ha0ha.ic
     M /branches/zip/include/hash0hash.h
     M /branches/zip/include/univ.i

  branches/zip: Introduce UNIV_AHI_DEBUG for debugging the adaptive hash
  index without enabling UNIV_DEBUG.
  ------------------------------------------------------------------------
  r3574 | marko | 2008-12-17 12:44:31 +0200 (Wed, 17 Dec 2008) | 2 lines
  Changed paths:
     M /branches/zip/ChangeLog

  branches/zip: ChangeLog: Document recent changes that were not included in
  InnoDB Plugin 1.0.2, except changes to source code comments.
  ------------------------------------------------------------------------
  r3575 | marko | 2008-12-17 14:40:58 +0200 (Wed, 17 Dec 2008) | 12 lines
  Changed paths:
     M /branches/zip/ChangeLog
     M /branches/zip/include/row0sel.h
     M /branches/zip/include/row0upd.h
     M /branches/zip/pars/pars0pars.c
     M /branches/zip/row/row0mysql.c
     M /branches/zip/row/row0sel.c
     M /branches/zip/row/row0upd.c

  branches/zip: Remove update-in-place-in-select from the internal SQL
  interpreter.  It was only used for updating the InnoDB internal data
  dictionary when renaming or dropping tables.  It could have caused
  deadlocks after acquiring latches on insert buffer bitmap pages.
  This and r3544 should fix Issue #135.

  Furthermore, the update-in-place-in-select does not account for
  compression failure.  That was not a problem yet, since the InnoDB SQL
  interpreter has so far assumed ROW_FORMAT=REDUNDANT.

  rb://63 approved by Heikki Tuuri
  ------------------------------------------------------------------------
2008-12-17 12:48:23 +00:00
marko
0a8380ab4a branches/innodb+: Merge revisions 3519:3541 from branches/zip:
------------------------------------------------------------------------
  r3537 | marko | 2008-12-16 10:24:03 +0200 (Tue, 16 Dec 2008) | 3 lines

  branches/zip: sync_thread_add_level(): Add a comment explaining the
  assertion about SYNC_BUF_POOL and SYNC_BUF_BLOCK.
  ------------------------------------------------------------------------
  r3540 | marko | 2008-12-16 12:13:31 +0200 (Tue, 16 Dec 2008) | 2 lines

  branches/zip: buf_page_init_for_read(): Use common code for error exit.
  ------------------------------------------------------------------------
  r3541 | marko | 2008-12-16 12:14:58 +0200 (Tue, 16 Dec 2008) | 3 lines

  branches/zip: btr_cur_optimistic_delete(): Note that no further pages
  must be latched before calling mtr_commit(mtr) if the function returns TRUE.
  ------------------------------------------------------------------------
2008-12-16 10:25:39 +00:00
marko
2bd90b444b branches/innodb+: When buffering an insert, notify the buffer pool
watch.  This should fix the race condition that seems to have caused
Issue #126: When another thread is buffering an insert for the record
that is being purged, it should invoke buf_pool_watch_notify(), so
that the purge will not be buffered. Otherwise, the purge would be
buffered for the wrong record (one that was inserted after the purge
determined that the record can be removed).

When deletes are not buffered, the latch on the secondary index page
would prevent the insert from occurring.  In delete buffering, the
buf_pool_watch replaces the page latch when the page is not in the
buffer pool.

buf_pool_watch_notify(): Make public.

ibuf_insert(): Invoke buf_pool_watch_notify() when buffering an
insert or a delete-mark operation.
2008-12-10 15:20:17 +00:00
inaam
dedade9f2e branches/innodb+
I have added some too strict assertions on Marko's suggestion in r3355.
This patch removes those assertions.
2008-12-04 19:51:29 +00:00
inaam
d81f82284d branches/innodb+ issue#115
This is to fix issues introduced by recovery enhancements committed
through r2993. The fix is to update flush_rbt whenever flush_list is
manipulated because of buf_page/buf_block relocation.

rb://54

Reviewed by: Marko
2008-12-04 08:19:12 +00:00
marko
29a777d62d branches/innodb+: Remove redundant buf_pool_watch_notify() calls
after buf_page_init().
2008-12-03 13:34:51 +00:00
marko
87c9f0fcb5 branches/innodb+: Merge revisions 3177:3180 from branches/zip:
------------------------------------------------------------------------
  r3180 | marko | 2008-11-21 16:36:18 +0200 (Fri, 21 Nov 2008) | 3 lines

  branches/zip: buf_LRU_free_block(): Do not assert on ibuf_count until after
  it has been determined that the block is not being I/O-fixed.
  This corrects the mistake that was made in r3177.
  ------------------------------------------------------------------------
2008-11-21 14:37:52 +00:00
marko
7172c215ac branches/innodb+: Merge revisions 3152:3177 from branches/zip:
------------------------------------------------------------------------
  r3170 | marko | 2008-11-21 10:11:18 +0200 (Fri, 21 Nov 2008) | 4 lines

  branches/zip: dtuple_print(): Dump each field in a separate line,
  so that the dumps can be read and compared more easily.
  This is related to the change to rec_print_old() and rec_print_comp()
  in r3148.
  ------------------------------------------------------------------------
  r3177 | marko | 2008-11-21 16:24:31 +0200 (Fri, 21 Nov 2008) | 3 lines

  branches/zip: buf_LRU_free_block(), buf_page_try_get_func(): Assert that
  there is nothing in the insert buffer for the page.  This is for
  tracking down Issue #128.
  ------------------------------------------------------------------------
2008-11-21 14:28:42 +00:00
marko
ace10f32a0 branches/innodb+: Merge revisions 2986:3152 from branches/zip:
------------------------------------------------------------------------
  r3036 | marko | 2008-11-12 12:34:30 +0200 (Wed, 12 Nov 2008) | 4 lines

  branches/zip: dtuple_validate(): When UNIV_DEBUG_VALGRIND is defined,
  rely solely on the UNIV_MEM_ASSERT_RW() check and disable the for loop
  that would only cause additional noise.
  ------------------------------------------------------------------------
  r3037 | marko | 2008-11-12 13:52:57 +0200 (Wed, 12 Nov 2008) | 6 lines

  branches/zip: row_vers_impl_x_locked_off_kernel(): Remove compilation
  warnings about prev_trx_id and vers_del being possibly uninitialized,
  by handling the case prev_version == NULL in a single if block.

  rb://45 approved by Inaam Rana.
  ------------------------------------------------------------------------
  r3131 | michael | 2008-11-17 14:56:56 +0200 (Mon, 17 Nov 2008) | 9 lines

  branches/zip:

  rb://53

  Improve innodb_supports_xa system variable handling and
  reduces the number of retrievals of the value from MySQL.

  Approved by: Marko, over IM
  ------------------------------------------------------------------------
  r3132 | michael | 2008-11-17 16:02:01 +0200 (Mon, 17 Nov 2008) | 5 lines

  branches/zip: rb://53

  Final version of rb://53, fixes the styling of a comment, makes
  the definition and the declaration of thd_supports_xa() identical commentwise.
  ------------------------------------------------------------------------
  r3141 | marko | 2008-11-19 16:39:55 +0200 (Wed, 19 Nov 2008) | 1 line

  branches/zip: buf_LRU_free_block(): Clarify the function comment.
  ------------------------------------------------------------------------
  r3144 | marko | 2008-11-20 11:39:49 +0200 (Thu, 20 Nov 2008) | 2 lines

  branches/zip: rec_get_nth_field_offs_old(): Add UNIV_UNLIKELY hints
  to assertion-like tests.
  ------------------------------------------------------------------------
  r3145 | marko | 2008-11-20 12:22:40 +0200 (Thu, 20 Nov 2008) | 20 lines

  branches/zip: Always check for "row too large" when executing SQL to create
  an index or table.  We have to skip this check when loading table definitions
  from the data dictionary, because we could otherwise refuse to load old
  tables (even uncompressed ones).  This addresses Issue #119.

  The first "row too large" check was implemented in MySQL 5.0.3
  to address MySQL Bug #5682.  In the InnoDB Plugin 1.0.2, a more
  accurate check was implemented in innodb_strict_mode.  We now
  make the check unconditional.

  dict_create_index_step(): Pass strict=TRUE to dict_index_add_to_cache().

  trx_is_strict(), thd_is_strict(): Remove.

  innodb-zip.test: Test in innodb_strict_mode=OFF.

  innodb_bug36169.test: Ensure that none of the tables can be created.

  rb://56 approved by Sunny Bains.
  ------------------------------------------------------------------------
  r3148 | marko | 2008-11-20 13:27:27 +0200 (Thu, 20 Nov 2008) | 3 lines

  branches/zip: rec_print_old(), rec_print_comp(): Dump each field in a
  separate line, so that the dumps can be read and compared more easily.
  ------------------------------------------------------------------------
2008-11-20 11:53:53 +00:00
inaam
914923fe70 branches/innodb+ rb://48
This patch is to improve recovery performance in InnoDB+.
It includes introduction of red-black tree for sorted insertion into
the flush_list and couple of other quirks. More can be found
at: https://svn.innodb.com/innobase/Recovery_Performance_Improvements

Reviewed by: Marko
2008-11-11 10:31:51 +00:00
marko
58d342c90a branches/innodb+: Revert some debugging-related changes
that were accidentally committed in r2971:

univ.i, ha_innobase::create(): Reduce the uncompressed page size from
16 to 4 kilobytes.

btr_cur_search_to_nth_level(): Print a diagnostic message when the
leaf page of a secondary index is being requested from the disk.

buf_read_ahead_random(), buf_read_ahead_linear(): Disable.
2008-11-07 12:16:36 +00:00
marko
7c37bc941f branches/innodb+: ibuf_get_volume_buffered():
Invoke ibuf_get_volume_buffered_count() as many times as
ibuf_rec_get_volume(rec), so that *n_recs will be updated as appropriate.
This fixes Issue #82: some deletes will be buffered in purge.
2008-11-06 12:41:18 +00:00
marko
f7e76f23c1 branches/innodb+: Merge revisions 2678:2774 from branches/zip. 2008-10-11 19:37:21 +00:00
marko
a957854246 branches/innodb+: Use buf_pool_mutex_own() instead of accessing
buf_pool_mutex directly.
2008-09-22 10:19:47 +00:00
marko
1838b00352 branches/innodb+: Non-functional change: Rename all functions related to the
buf_pool->watch_ fields to start with the common prefix buf_pool_watch,
so that they can be searched easily:

buf_pool_watch_set(): Renamed from buf_pool_add_watch().  The "add" was
misleading, because only one watch can be active at a time.

buf_pool_watch_clear(): Renamed from buf_pool_remove_watch().

buf_pool_watch_occurred(): Renamed from buf_pool_watch_happened().
2008-09-22 09:18:14 +00:00
marko
56d28f1c57 branches/innodb+: Merge 2637:2660 from branches/zip. 2008-09-22 07:57:34 +00:00
marko
583a4fb426 branches/innodb+: buf0buf.c: Fix some assertions.
buf_page_get_gen(): Once again, zip_size must always match the
compressed page size of the tablespace where the page is requested from.
This seems to hold also for all calls from the insert buffer.

buf_page_optimistic_get_func(): Do not pass mtr to ibuf_page(), because
there is no guarantee that mtr would contain an x-latch to the insert
buffer bitmap page that covers (block->page.space, block->page.offset).
2008-09-19 14:10:56 +00:00
marko
7aeb05d863 branches/innodb+: buf_page_get_gen(): Correct some ut_ad() assertions.
zip_size should always equal fil_space_get_zip_size(space), even when called
from ibuf.

ibuf_page() should be called with mtr=NULL to be equivalent to the original
implementation.  We cannot assume that mtr holds an x-latch on the insert
buffer bitmap page that covers the page that is being requested.
2008-09-19 14:00:02 +00:00
marko
da656b2207 branches/innodb+: buf_print_io(): Replace a TAB in the output with spaces,
so that this will be identical to branches/zip.
2008-09-18 09:30:22 +00:00
marko
0c4879da3d branches/innodb+: Revert some changes that make the code differ
from branches/zip.

btr_cur_optimistic_delete(): Split a too long line in the way it is
split in branches/zip.

buf_page_get_gen(): Add missing space in the function comment.

buf_print_io(): Restoer a removed space to the printout.

univ.i: Remove C++-style (or C99-style) comments.

buf0buf.h: Undo the white-space changes to the wrapper macros of
buf_page_get_gen().

ibuf_update_free_bits_low(): Revert the changes.  Restore the assertion
that this function must not be invoked on compressed pages.  The function
ibuf_update_free_bits_zip() is for compressed pages.

ibuf_insert_to_index_page(): Undo a white-space change.
2008-09-18 07:01:13 +00:00
marko
8638150c6c branches/innodb+: Merge 2579:2637 from branches/zip. 2008-09-17 19:52:30 +00:00
marko
f208759f13 branches/innodb+: buf0buddy.c: Undo changes to white space that make
the file differ from branches/zip.
2008-09-17 19:38:41 +00:00
sunny
d0e8003b2f branches/innodb+: Merge revisions 2460:2579 from branches/zip
The followin mysql-tests failed (and they are known to fail):
main.information_schema        	[ fail ]
main.innodb_file_per_table_basic[ fail ]
main.type_bit_innodb           	[ fail ]

Tested against : MYSQL_SERVER_VERSION  "5.1.28"
2008-08-09 00:15:46 +00:00
sunny
4abda95a36 branches/innodb+: Fix a debug assertion. 2008-06-16 03:12:16 +00:00
sunny
0f4e11587a branches/innodb+: zip_size can be 0 when called from ibuf. 2008-06-10 09:45:36 +00:00
inaam
c5dacc2914 branches/innodb+: Merge revisions 2344:2454 from branches/zip 2008-05-14 15:43:19 +00:00
marko
0c5b8df908 branches/innodb+: Merge revisions 2340:2343 from branches/zip 2008-03-03 12:57:07 +00:00
marko
5cf58ce919 branches/innodb+: Merge revisions 2322:2340 from branches/zip 2008-03-03 10:25:27 +00:00
sunny
fceb78e698 branches/innodb+: Delete buffer port from branches/fts:r2283 2008-02-27 07:03:34 +00:00
marko
da54bec75b branches/zip: Minor fixes.
buf_LRU_old_adjust_len(): Replace a constant ut_ad() with a preprocessor check.

buf_LRU_free_block(): Remove the check for the unlikely case
buf_pool->LRU_old == prev_b in order to simplify the function.
The check was implemented as part of r2306.
2008-02-18 15:43:16 +00:00
marko
060a95bea6 branches/zip: buf_LRU_free_block(): When freeing the uncompressed page
corresponding to a compressed page, do not flag the block as recently
used, but maintain the position of the control block on the LRU list.
2008-02-16 10:33:15 +00:00
marko
17127565dd branches/zip: buf0lru.c: Minor cleanup.
Use ut_d() in assignments to bpage->in_LRU_list instead of #ifdef UNIV_DEBUG.

buf_LRU_remove_block(): Move an assertion to a more appropriate place.
2008-02-15 11:45:37 +00:00
marko
7b538bb8ea branches/zip: buf_buddy_alloc_from(): Relax a debug assertion that fails
on i==j==BUF_BUDDY_SIZES.
2008-02-15 10:07:42 +00:00
marko
1d1dc31a06 branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global
symbols.  Use it for all definitions of non-static variables and functions.

lexyy.c, make_flex.sh: Declare yylex as UNIV_INTERN, not static.  It is
referenced from pars0grm.c.

Actually, according to
	nm .libs/ha_innodb.so|grep -w '[ABCE-TVXYZ]'
the following symbols are still global:

* The vtable for class ha_innodb
* pars0grm.c: The function yyparse() and the variables yychar, yylval, yynerrs

The required changes to the Bison-generated file pars0grm.c will be addressed
in a separate commit, which will add a script similar to make_flex.sh.

The class ha_innodb is renamed from class ha_innobase by a #define.  Thus,
there will be no clash with the builtin InnoDB.  However, there will be some
overhead for invoking virtual methods of class ha_innodb.  Ideas for making
the vtable hidden are welcome.  -fvisibility=hidden is not available in GCC 3.
2008-02-06 14:17:36 +00:00
marko
8958f06278 branches/zip: Introduce the page type code FIL_PAGE_TYPE_ZBLOB2 for
continuation pages containing compressed BLOBs.  The first compressed
BLOB page will be of type FIL_PAGE_TYPE_ZBLOB.
2008-01-24 08:12:02 +00:00
marko
214ced4e36 branches/zip: Free the buffer pool at shutdown.
buf_pool_free(): New function: Free all chunks of the buffer pool.

innobase_shutdown_for_mysql(): Call buf_pool_free() right before
ut_free_all_mem().
2008-01-16 12:44:44 +00:00
marko
e693d5170d branches/zip: Add comments about the lock and latch protection of externally
stored columns (BLOBs).

btr_copy_blob_prefix(), btr_copy_zblob_prefix(),
btr_copy_externally_stored_field_prefix_low(),
btr_copy_externally_stored_field_prefix(),
btr_copy_externally_stored_field(),
btr_rec_copy_externally_stored_field():
Note that the page containing the clustered index record that points to
the BLOB must be latched.

btr_copy_zblob_prefix(): Note that there is no latch on the page, and thus
all accesses to a given page via this function must be covered by the same
set of locks or latches.

btr_copy_zblob_prefix(): Note that the block acquired by
buf_page_get_zip() is protected by an exclusive table lock or
or by a latch on the clustered index record.
2008-01-16 10:45:14 +00:00
marko
d4de2116e0 branches/zip: buf_pool_init(): Initialize buf_pool_zip_mutex before
acquiring buf_pool_mutex.  This avoids triggering the debug assertion
that was added in r2227.
2008-01-15 09:43:14 +00:00
marko
0d02593440 branches/zip: buf_LRU_search_and_free_block(): Do not forbid the release
of the buffer pool mutex.  Apparently, it is temporarily released also
in older versions of MySQL/InnoDB for the duration of the
btr_search_drop_page_hash_index() call [in buf_LRU_free_block()].
2008-01-10 12:34:25 +00:00
marko
7ac6a34347 branches/zip: Add instrumentation for prohibiting the release of
the buffer pool mutex.  The instrumentation can be activated by
defining UNIV_DEBUG or UNIV_BUF_DEBUG at compilation time.

buf_pool_mutex_exit_forbidden: New variable.  When this is nonzero,
an assertion will fail in buf_pool_mutex_exit().

buf_pool_mutex_exit_forbid(): Macro for declaring that the buffer pool
mutex must not be released.  Calls may be nested.

buf_pool_mutex_exit_allow(): Macro for declaring that the buffer pool
mutex may be released.  Calls may be nested.

buf_LRU_search_and_free_block(): Prohibit buf_pool_mutex_exit() in the
scope of the function.

buf_LRU_free_block(): Prohibit buf_pool_mutex_exit() in buf_buddy_alloc()
and buf_buddy_free().

buf_LRU_block_remove_hashed_page(): Prohibit buf_pool_mutex_exit()
in buf_buddy_free().
2008-01-10 09:51:57 +00:00
marko
cdb5b46445 branches/zip: Implement wrappers for all operations on the buffer pool mutex.
buf_pool->mutex: Rename to buf_pool_mutex, so that the wrappers will have
to be used when changes are merged from other source trees.

buf_pool->zip_mutex: Rename to buf_pool_zip_mutex.

buf_pool_mutex_own(), buf_pool_mutex_enter(), buf_pool_mutex_exit():
Wrappers for buf_pool_mutex.
2008-01-10 09:37:13 +00:00
marko
b056745617 branches/zip: Split the source-only configuration parameter
buf_buddy_min_n_frames into two, also buf_buddy_max_n_frames.
Set the default values in such a way that a strict LRU policy will apply
for replacing compressed or uncompressed page frames in the buffer pool.

These parameters have not yet been exposed to the MySQL layer.
2008-01-04 14:08:41 +00:00
vasil
6367b36c50 branches/zip:
Non-functional change: add "out:" comment for the return value.
2007-12-17 10:03:15 +00:00
marko
8b00501bea branches/zip: Clarify that buf_buddy_alloc() should only be used for
allocating compressed page frames or their control blocks.  Also note
that if buf_buddy_alloc() is used for allocating a control block,
it must be initialized before releasing buf_pool->mutex.

buf_page_init_for_read(): When the page hash check fails after
buf_buddy_alloc(), free the uninitialized control block before freeing
the compressed page frame.  This fixes a potential error in
buf_buddy_relocate_block().
2007-12-12 14:12:52 +00:00
marko
b7acbef614 branches/zip: Document how the data structures of the buddy allocator
are interfaced with the buffer pool.
2007-12-12 13:42:03 +00:00
marko
6d604a10a0 branches/zip: buf_page_get_gen(): Check the return status of
buf_zip_decompress() and return NULL on decompression failure.
2007-12-10 12:54:53 +00:00
marko
33e082be24 branches/zip: buf_buddy_alloc(): Assign *lru = TRUE whenever the buffer pool
mutex is temporarily released.

buf_LRU_free_block(), buf_buddy_alloc_clean(): Add an output parameter that
will be assigned TRUE when the buffer pool mutex is released.

This bug was spotted by and fix provided by Sunny.
2007-12-10 09:48:28 +00:00