diff options
Diffstat (limited to 'storage/innobase/include/buf0buf.h')
| -rw-r--r-- | storage/innobase/include/buf0buf.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/storage/innobase/include/buf0buf.h b/storage/innobase/include/buf0buf.h index c0ff7b1766b..456f077a13d 100644 --- a/storage/innobase/include/buf0buf.h +++ b/storage/innobase/include/buf0buf.h @@ -910,7 +910,27 @@ buf_block_set_io_fix( /*=================*/ buf_block_t* block, /*!< in/out: control block */ enum buf_io_fix io_fix);/*!< in: io_fix state */ - +/*********************************************************************//** +Makes a block sticky. A sticky block implies that even after we release +the buf_pool->mutex and the block->mutex: +* it cannot be removed from the flush_list +* the block descriptor cannot be relocated +* it cannot be removed from the LRU list +Note that: +* the block can still change its position in the LRU list +* the next and previous pointers can change. */ +UNIV_INLINE +void +buf_page_set_sticky( +/*================*/ + buf_page_t* bpage); /*!< in/out: control block */ +/*********************************************************************//** +Removes stickiness of a block. */ +UNIV_INLINE +void +buf_page_unset_sticky( +/*==================*/ + buf_page_t* bpage); /*!< in/out: control block */ /********************************************************************//** Determine if a buffer block can be relocated in memory. The block can be dirty, but it must not be I/O-fixed or bufferfixed. */ |