------------------------------------------------------------------------
r4074 | vasil | 2009-01-31 08:05:24 +0200 (Sat, 31 Jan 2009) | 4 lines
branches/zip:
Adjust the failing patch patches/information_schema.diff.
------------------------------------------------------------------------
r4076 | vasil | 2009-02-02 09:32:04 +0200 (Mon, 02 Feb 2009) | 4 lines
branches/zip:
Add ChangeLog entry for the change in r4072.
------------------------------------------------------------------------
r4077 | marko | 2009-02-02 10:48:05 +0200 (Mon, 02 Feb 2009) | 2 lines
branches/zip: innobase_start_or_create_for_mysql(): Remove a factual error
in the function comment. Parameters are not read from a file "srv_init".
------------------------------------------------------------------------
r4081 | marko | 2009-02-02 14:28:17 +0200 (Mon, 02 Feb 2009) | 4 lines
branches/zip: Enclose some backup functions in #ifdef UNIV_HOTBACKUP.
recv_read_cp_info_for_backup(), recv_scan_log_seg_for_backup():
These functions are only called by InnoDB Hot Backup.
------------------------------------------------------------------------
r4082 | vasil | 2009-02-02 18:24:08 +0200 (Mon, 02 Feb 2009) | 10 lines
branches/zip:
Fix a mysql-test failure in innodb-zip:
main.innodb-zip [ fail ]
Test ended at 2009-02-02 18:13:25
CURRENT_TEST: main.innodb-zip
mysqltest: At line 160: Found line beginning with -- that didn't contain a valid mysqltest command, check your syntax or use # if you intended to write a comment
------------------------------------------------------------------------
r4083 | vasil | 2009-02-02 18:33:20 +0200 (Mon, 02 Feb 2009) | 6 lines
branches/zip:
Fix the failing innodb-zip test to restore the environment as it was before
the test execution because a newly added feature in the mysql-test framework
does check for this.
------------------------------------------------------------------------
r4088 | calvin | 2009-02-03 02:35:56 +0200 (Tue, 03 Feb 2009) | 8 lines
branches/zip: fix a compiler error and a warning
Both are minor changes:
1) Compiler error introduced in r4072: double ';' at the end.
2) Warning introduced in r3613: \mem\mem0pool.c(481) :
warning C4098: 'mem_area_free' : 'void' function returning a value
Approved by: Sunny (IM)
------------------------------------------------------------------------
r4098 | marko | 2009-02-03 09:52:45 +0200 (Tue, 03 Feb 2009) | 4 lines
branches/zip: mem_area_free(): Correct a bug that was introduced in r4088.
free() is not the same as ut_free(). ut_free() pairs with ut_malloc(),
not malloc(). free() pairs with malloc() and some other functions.
------------------------------------------------------------------------
r4114 | marko | 2009-02-04 16:09:24 +0200 (Wed, 04 Feb 2009) | 2 lines
branches/zip: buf_block_align(): Fix a bogus debug assertion
that was introduced in r4036, to address Issue #161.
------------------------------------------------------------------------
r4139 | vasil | 2009-02-09 13:47:16 +0200 (Mon, 09 Feb 2009) | 5 lines
branches/zip:
Remove mysql-test/patches/bug35261.diff because that bug has been fixed
in the MySQL repository.
------------------------------------------------------------------------
r4141 | marko | 2009-02-09 15:35:50 +0200 (Mon, 09 Feb 2009) | 1 line
branches/zip: fil_write_lsn_and_arch_no_to_file(): Plug a memory leak.
------------------------------------------------------------------------
r4144 | inaam | 2009-02-10 01:36:25 +0200 (Tue, 10 Feb 2009) | 9 lines
branches/zip rb://30
This patch changes the innodb mutexes and rw_locks implementation.
On supported platforms it uses GCC builtin atomics. These changes
are based on the patch sent by Mark Callaghan of Google under BSD
license. More technical discussion can be found at rb://30
Approved by: Heikki
------------------------------------------------------------------------
r4145 | vasil | 2009-02-10 07:34:43 +0200 (Tue, 10 Feb 2009) | 9 lines
branches/zip:
Non-functional change: Fix a compilation warning introduced in r4144:
gcc -DHAVE_CONFIG_H -I. -I../../include -I../../include -I../../include -I../../regex -I../../storage/innobase/include -I../../sql -I. -Werror -Wall -g -MT libinnobase_a-sync0arr.o -MD -MP -MF .deps/libinnobase_a-sync0arr.Tpo -c -o libinnobase_a-sync0arr.o `test -f 'sync/sync0arr.c' || echo './'`sync/sync0arr.c
cc1: warnings being treated as errors
sync/sync0arr.c: In function 'sync_array_object_signalled':
sync/sync0arr.c:869: warning: pointer targets in passing argument 1 of 'os_atomic_increment' differ in signedness
------------------------------------------------------------------------
r4148 | marko | 2009-02-10 10:38:41 +0200 (Tue, 10 Feb 2009) | 12 lines
branches/zip: Map ut_malloc(), ut_realloc(), ut_free() to
malloc(), realloc(), free() when innodb_use_sys_malloc is set.
ut_free_all_mem(): If innodb_use_sys_malloc is set, do nothing,
because then ut_mem_block_list_inited will never be set.
log_init(): Use mem_alloc() instead of ut_malloc(), so that the
memory will be freed. (Tested with Valgrind, although it is not
clear why the memory would be freed.)
rb://86 approved by Heikki Tuuri and Ken Jacobs. This addresses Issue #168.
------------------------------------------------------------------------
r4149 | marko | 2009-02-10 11:09:15 +0200 (Tue, 10 Feb 2009) | 1 line
branches/zip: ChangeLog: Document recent changes.
------------------------------------------------------------------------
r4150 | marko | 2009-02-10 11:51:43 +0200 (Tue, 10 Feb 2009) | 6 lines
branches/zip: get_share(), free_share(): Make table locking case sensitive.
If lower_case_table_names=1, MySQL will pass the table names in lower case.
Thus, we can use a binary comparison (strcmp) in the hash table.
rb://87 approved by Heikki Tuuri, to address Bug #41676 and Issue #167.
------------------------------------------------------------------------
------------------------------------------------------------------------
r4072 | marko | 2009-01-30 23:30:29 +0200 (Fri, 30 Jan 2009) | 32 lines
branches/zip: Make innodb_adaptive_hash_index settable.
btr_search_disabled: Rename to btr_search_enabled and change the type
to char, so that it can be directly linked to the MySQL parameters.
Note that the variable is protected by btr_search_latch and
btr_search_enabled_mutex, a new mutex introduced in this patch.
btr_search_enabled_mutex: A new mutex, to protect btr_search_enabled
together with btr_search_latch.
buf_pool_drop_hash_index(): New function, to be called from
btr_search_disable().
btr_search_disable(), btr_search_enable(): Fix bugs. These functions
were previously unused.
btr_search_guess_on_hash(), btr_search_build_page_hash_index():
Check btr_search_enabled once more, while holding btr_search_latch.
btr_cur_search_to_nth_level(): Note that the reads of btr_search_enabled
may be dirty and explain why it should not be a problem.
innobase_adaptive_hash_index: Remove. The variable btr_search_enabled will be used directly instead.
innodb_adaptive_hash_index_update(): New function, an update callback for
innodb_adaptive_hash_index. This will call either btr_search_disable()
or btr_search_enable() when the value is assigned. The functions will
be called even if the value does not appear to be changed, e.g., when
setting from TRUE to TRUE or FALSE to FALSE.
rb://85 approved by Heikki Tuuri. This addresses Issue #163.
------------------------------------------------------------------------
------------------------------------------------------------------------
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.
------------------------------------------------------------------------
------------------------------------------------------------------------
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
------------------------------------------------------------------------
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"
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.
is not indexed.
btr_search_update_hash_ref(), btr_search_drop_page_hash_index(),
btr_search_build_page_hash_index(), btr_search_update_hash_on_delete(),
btr_search_update_hash_node_on_insert(), btr_search_update_hash_on_insert(),
btr_search_validate():
Assert that hashed blocks do not belong to the insert buffer tree.
btr_search_move_or_delete_hash_entries():
When invoked on the insert buffer tree, assert that neither block is hashed.
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.
For some reason, GCC 4.2.1 ignores casts (for removing constness)
in calls to inline functions.
page_align(), ut_align_down(): Make the parameter const void*, but still
return a non-const pointer. This is ugly, but these functions cannot be
replaced with a const-preserving macro in a portable way, given that
the pointer argument is not always pointing to bytes.
buf_block_get_page_zip(): Implement as a const-preserving macro.
buf_frame_get_page_zip(), buf_block_align(): Add const qualifiers.
lock_rec_get_prev(): Silence GCC 4.2.1 warnings.
mlog_write_initial_log_record(), mlog_write_initial_log_record_fast(),
mtr_memo_contains(): Add const qualifier to the pointer.
page_header_get_ptr(): Rewrite as page_header_get_offs(), and
implement as a macro that calls this function.
offsets_[] arrays, as suggested by Vasil.
rec_offs_set_n_alloc(): Declare as a public function. Assert that
n_alloc > REC_OFFS_HEADER_SIZE.
rec_offs_get_n_alloc(): Assert that n_alloc > REC_OFFS_HEADER_SIZE.
buf_page_get_gen(). This saves one mutex operation per block request.
buf_page_get_gen(), various macros and functions: Add parameter zip_size.
btr_node_ptr_get_child(): Add parameter index.
fil_space_get_latch(): Add optional output parameter zip_size.
fil_space_get_zip_size(): Return 0 for space id==0, because the
system tablespace is never compressed.
fsp_header_init(): Remove the parameter zip_size.
ibuf_free_excess_pages(): Remove the parameter zip_size.
trx_rseg_t, trx_undo_t: Add field zip_size.
xdes_lst_get_next(): Remove, unused.
buf_block_t. Move the fields "hash" and "file_page_was_freed" from
buf_block_t to buf_page_t.
buf_page_in_file(): New function, for checking block state in assertions.
and block->space with buf_block_get_state(block), buf_block_get_page_no(block),
and buf_block_get_space(block).
enum buf_block_state: Replaces the #define'd buf_block_t.state values.
buf_block_get_state(): New function.
buf_block_get_frame(): Add __attribute__((const)).
hash index, because it might occupy the chunk we would like to free.
TODO: In btr_search_check_free_space_in_heap(), release the block if
btr_search_latch is not immediately available.
buf_pool_shrink(): Split from buf_pool_resize().
btr_search_disabled: New variable, similar to srv_use_adaptive_hash_indexes
that was removed earlier.
btr_search_disable(): New function: disable and purge the adaptive hash index.
btr_search_enable(): New function: enable the adaptive hash index.
ha_clear(): New function: Empty a hash table and free the memory heaps.
when assigning node->data.
ha_delete(), ha_search_and_delete_if_found(), ha_remove_all_nodes_to_page():
Remove the parameter buf_block_t* block, now that it is stored within the
hash data structure in debug builds.
an assertion failure in debug builds when a context switch occurred in
buf_LRU_search_and_free_block() before the call to
btr_search_drop_page_hash_index() managed to acquire the mutexes again.
ha_node_t: Add the field buf_block_t* block.
ha_search_and_update_if_found(): Rename to ha_search_and_update_if_found_func()
with added buf_block_t* parameter in debug builds. Define the wrapper macro
ha_search_and_update_if_found() that always takes the buf_block_t* parameter.
ha_insert_for_fold(): Rename to ha_insert_for_fold_func()
with added buf_block_t* parameter in debug builds. Define the wrapper macro
ha_insert_for_fold() that always takes the buf_block_t* parameter.
Instead, get buf_block_t* as a parameter.
Without this patch, buf_page_hash_get() would return NULL in
buf_block_align(). The function buf_LRU_search_and_free_block()
invokes buf_LRU_block_remove_hashed_page(), which removes the
hash mapping needed by buf_page_hash_get().
btr_cur_t: Move page_block to page_cur_t::block.
page_cur_get_block(), page_cur_get_page_zip(): New functions.
page_cur_position(): Add parameter block.
Remove many page_zip parameters, now that there is page_cur_get_page_zip().
Replace some page, page_zip parameters with block.
Add some const qualifiers to function parameters and remove casts.
PAGE_HEAP_NO_INFIMUM, PAGE_HEAP_NO_SUPREMUM, PAGE_HEAP_NO_USER_LOW:
New constants.
Replace some cursor code in low-level diagnostic functions with
direct management of rec, because buf_block_t::buf_fix_count may be 0
when the functions are called, and debug assertions would fail.
accessors returning pointers with macros that preserve const qualifiers.
In UNIV_DEBUG builds, retain the accessors and cast away constness there.
dfield_get_type(), dfield_get_data(), dtuple_get_nth_field(),
dict_table_get_nth_col(), dict_table_get_sys_col(): Implement as macro
unless #ifdef UNIV_DEBUG.
rec_get_nth_field(): Replace with rec_get_nth_field_offs() that does not
do pointer arithmetics. Implement rec_get_nth_field() as a macro.
passed as TRUE.
Enclose hash_table_t::adaptive and buf_block_t::n_pointers in
#ifdef UNIV_DEBUG.
btr_search_drop_page_hash_index(): Enclose the corruption check
(which depends on buf_block_t::n_pointers) in #ifdef UNIV_DEBUG.
ibuf_reset_free_bits(): Remove, as there already is a similar function
ibuf_reset_free_bits_with_type().
ibuf_reset_free_bits_with_type(), ibuf_set_free_bits(),
ibuf_update_free_bits_if_full(), btr_leaf_page_release(),
buf_page_make_young(): Replace page_t with buf_block_t.
btr_compress(): Replace btr_page_get() with btr_block_get().
with page_get_page_no() and page_get_space_id(). We want to avoid
buf_block_align() calls, and the page_no and space_id are now stamped
on the pages early on.
Replace ut_ad(mtr_memo_contains(mtr, buf_block_align(ptr), ...))
with ut_ad(mtr_memo_contains_page(mtr, ptr, ...)) in order to reduce the
number of buf_block_align() calls.
buf_page_print(): Print also compressed pages. Add parameter zip_size.
buf_flush_init_for_writing(): Stamp the fields on a compressed B-tree index
page.
Add the header field FIL_PAGE_ZBLOB_SPACE_ID as an alias of FIL_PAGE_PREV.
page_zip_calc_checksum(): New function.
page_zip_compress(): Avoid copying the fields that are written in
buf_flush_init_for_writing().
page_zip_header_cmp(): New function for comparing those fields of the
page header that will not be written in buf_flush_init_for_writing().
