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Merge mysql-5.1 to mysql-5.5.

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This patch was already pushed to mysql-5.5 by Inaam Rana.
This commit is contained in:
Marko Mäkelä 2011-06-23 15:57:25 +03:00
commit f2a5309418
6 changed files with 48 additions and 49 deletions
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40
storage/innobase/buf/buf0buddy.c
View File

@ -79,7 +79,6 @@ buf_buddy_add_to_free(
ut_ad(buf_page_get_state(bpage) == BUF_BLOCK_ZIP_FREE);
ut_ad(buf_pool->zip_free[i].start != bpage);
UT_LIST_ADD_FIRST(list, buf_pool->zip_free[i], bpage);
}
/**********************************************************************//**
@ -104,7 +103,6 @@ buf_buddy_remove_from_free(
ut_ad(buf_pool_mutex_own(buf_pool));
ut_ad(buf_page_get_state(bpage) == BUF_BLOCK_ZIP_FREE);
UT_LIST_REMOVE(list, buf_pool->zip_free[i], bpage);
}
/**********************************************************************//**
@ -262,19 +260,19 @@ buf_buddy_alloc_from(
Allocate a block. The thread calling this function must hold
buf_pool->mutex and must not hold buf_pool->zip_mutex or any block->mutex.
The buf_pool_mutex may be released and reacquired.
@return allocated block, never NULL */
@return allocated block, never NULL */
UNIV_INTERN
void*
buf_buddy_alloc_low(
/*================*/
buf_pool_t* buf_pool, /*!< in: buffer pool instance */
buf_pool_t* buf_pool, /*!< in/out: buffer pool instance */
ulint i, /*!< in: index of buf_pool->zip_free[],
or BUF_BUDDY_SIZES */
ibool* lru) /*!< in: pointer to a variable that
will be assigned TRUE if storage was
allocated from the LRU list and
buf_pool->mutex was temporarily
released, */
released */
{
buf_block_t* block;
@ -353,7 +351,6 @@ buf_buddy_relocate(
header. Should the fields be invalid, we will be unable to
relocate the block. */
/* The src block may be split into smaller blocks,
some of which may be free. Thus, the
mach_read_from_4() calls below may attempt to read
@ -362,10 +359,10 @@ buf_buddy_relocate(
pool), so there is nothing wrong about this. The
mach_read_from_4() calls here will only trigger bogus
Valgrind memcheck warnings in UNIV_DEBUG_VALGRIND builds. */
space = mach_read_from_4((const byte*) src +
FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
page_no = mach_read_from_4((const byte*) src +
FIL_PAGE_OFFSET);
space = mach_read_from_4((const byte *) src
+ FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
page_no = mach_read_from_4((const byte *) src
+ FIL_PAGE_OFFSET);
/* Suppress Valgrind warnings about conditional jump
on uninitialized value. */
UNIV_MEM_VALID(&space, sizeof space);
@ -381,8 +378,6 @@ buf_buddy_relocate(
return(FALSE);
}
ut_ad(!buf_pool_watch_is_sentinel(buf_pool, bpage));
if (page_zip_get_size(&bpage->zip) != size) {
/* The block is of different size. We would
have to relocate all blocks covered by src.
@ -462,21 +457,21 @@ recombine:
if (UT_LIST_GET_LEN(buf_pool->zip_free[i]) < 16) {
goto func_exit;
}
/* Try to combine adjacent blocks. */
buddy = (buf_page_t*) buf_buddy_get(((byte*) buf), BUF_BUDDY_LOW << i);
#ifndef UNIV_DEBUG_VALGRIND
buddy = (buf_page_t*) buf_buddy_get(((byte*) buf), BUF_BUDDY_LOW << i);
#ifndef UNIV_DEBUG_VALGRIND
/* When Valgrind instrumentation is not enabled, we can read
buddy->state to quickly determine that a block is not free.
When the block is not free, buddy->state belongs to a compressed
page frame that may be flagged uninitialized in our Valgrind
instrumentation. */
if (buddy->state != BUF_BLOCK_ZIP_FREE) {
goto buddy_nonfree;
}
if (buddy->state != BUF_BLOCK_ZIP_FREE) {
goto buddy_nonfree;
}
#endif /* !UNIV_DEBUG_VALGRIND */
for (bpage = UT_LIST_GET_FIRST(buf_pool->zip_free[i]); bpage; ) {
@ -503,12 +498,13 @@ buddy_is_free:
buddy_nonfree:
#endif /* !UNIV_DEBUG_VALGRIND */
ut_d(BUF_BUDDY_LIST_VALIDATE(buf_pool, i));
ut_d(BUF_BUDDY_LIST_VALIDATE(buf_pool, i));
/* The buddy is not free. Is there a free block of this size? */
bpage = UT_LIST_GET_FIRST(buf_pool->zip_free[i]);
if (bpage) {
/* Remove the block from the free list, because a successful
buf_buddy_relocate() will overwrite bpage->list. */
buf_buddy_remove_from_free(buf_pool, bpage, i);

1
storage/innobase/buf/buf0buf.c
View File

@ -3272,7 +3272,6 @@ err_exit:
bpage->space = space;
bpage->offset = offset;
#ifdef UNIV_DEBUG
bpage->in_page_hash = FALSE;
bpage->in_zip_hash = FALSE;

1
storage/innobase/buf/buf0lru.c
View File

@ -1819,7 +1819,6 @@ buf_LRU_block_remove_hashed_page(
buf_pool_mutex_exit_allow(buf_pool);
buf_page_free_descriptor(bpage);
return(BUF_BLOCK_ZIP_FREE);
case BUF_BLOCK_FILE_PAGE:

19
storage/innobase/include/buf0buddy.h
View File

@ -37,14 +37,14 @@ Created December 2006 by Marko Makela
/**********************************************************************//**
Allocate a block. The thread calling this function must hold
buf_pool->mutex and must not hold buf_pool->zip_mutex or any
block->mutex. The buf_pool_mutex may be released and reacquired.
block->mutex. The buf_pool->mutex may be released and reacquired.
This function should only be used for allocating compressed page frames.
@return allocated block, never NULL */
UNIV_INLINE
void*
byte*
buf_buddy_alloc(
/*============*/
buf_pool_t* buf_pool, /*!< in: buffer pool in which
buf_pool_t* buf_pool, /*!< in/out: buffer pool in which
the page resides */
ulint size, /*!< in: compressed page size
(between PAGE_ZIP_MIN_SIZE and
@ -57,16 +57,17 @@ buf_buddy_alloc(
__attribute__((malloc, nonnull));
/**********************************************************************//**
Release a block. */
Deallocate a block. */
UNIV_INLINE
void
buf_buddy_free(
/*===========*/
buf_pool_t* buf_pool,
/*!< buffer pool in which the block resides */
void* buf, /*!< in: block to be freed, must not be
pointed to by the buffer pool */
ulint size) /*!< in: block size, up to UNIV_PAGE_SIZE */
buf_pool_t* buf_pool, /*!< in/out: buffer pool in which
the block resides */
void* buf, /*!< in: block to be freed, must not
be pointed to by the buffer pool */
ulint size) /*!< in: block size,
up to UNIV_PAGE_SIZE */
__attribute__((nonnull));
#ifndef UNIV_NONINL

35
storage/innobase/include/buf0buddy.ic
View File

@ -42,13 +42,14 @@ UNIV_INTERN
void*
buf_buddy_alloc_low(
/*================*/
buf_pool_t* buf_pool,
/*!< in: buffer pool in which the page resides */
ulint i, /*!< in: index of buf_pool->zip_free[],
or BUF_BUDDY_SIZES */
ibool* lru) /*!< in: pointer to a variable that will be assigned
TRUE if storage was allocated from the LRU list
and buf_pool_mutex was temporarily released */
buf_pool_t* buf_pool, /*!< in/out: buffer pool instance */
ulint i, /*!< in: index of buf_pool->zip_free[],
or BUF_BUDDY_SIZES */
ibool* lru) /*!< in: pointer to a variable that
will be assigned TRUE if storage was
allocated from the LRU list and
buf_pool->mutex was temporarily
released */
__attribute__((malloc, nonnull));
/**********************************************************************//**
@ -88,14 +89,14 @@ buf_buddy_get_slot(
/**********************************************************************//**
Allocate a block. The thread calling this function must hold
buf_pool->mutex and must not hold buf_pool->zip_mutex or any
block->mutex. The buf_pool_mutex may be released and reacquired.
block->mutex. The buf_pool->mutex may be released and reacquired.
This function should only be used for allocating compressed page frames.
@return allocated block, never NULL */
UNIV_INLINE
void*
byte*
buf_buddy_alloc(
/*============*/
buf_pool_t* buf_pool, /*!< in: buffer pool in which
buf_pool_t* buf_pool, /*!< in/out: buffer pool in which
the page resides */
ulint size, /*!< in: compressed page size
(between PAGE_ZIP_MIN_SIZE and
@ -111,7 +112,8 @@ buf_buddy_alloc(
ut_ad(size >= PAGE_ZIP_MIN_SIZE);
ut_ad(size <= UNIV_PAGE_SIZE);
return(buf_buddy_alloc_low(buf_pool, buf_buddy_get_slot(size), lru));
return((byte*) buf_buddy_alloc_low(buf_pool, buf_buddy_get_slot(size),
lru));
}
/**********************************************************************//**
@ -120,11 +122,12 @@ UNIV_INLINE
void
buf_buddy_free(
/*===========*/
buf_pool_t* buf_pool, /*!< in: buffer pool instance */
void* buf, /*!< in: block to be freed, must not be
pointed to by the buffer pool */
ulint size) /*!< in: block size, up to
UNIV_PAGE_SIZE */
buf_pool_t* buf_pool, /*!< in/out: buffer pool in which
the block resides */
void* buf, /*!< in: block to be freed, must not
be pointed to by the buffer pool */
ulint size) /*!< in: block size,
up to UNIV_PAGE_SIZE */
{
ut_ad(buf_pool_mutex_own(buf_pool));
ut_ad(ut_is_2pow(size));

1
storage/innobase/include/buf0buf.h
View File

@ -284,6 +284,7 @@ buf_page_free_descriptor(
/*=====================*/
buf_page_t* bpage) /*!< in: bpage descriptor to free. */
__attribute__((nonnull));
/********************************************************************//**
Allocates a buffer block.
@return own: the allocated block, in state BUF_BLOCK_MEMORY */