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Applying InnoDB snapshot

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r6830 | marko | 2010-03-18 09:48:18 +0200 (Thu, 18 Mar 2010) | 3 lines
branches/zip: buf_page_peek_if_too_old(): Use 32-bit arithmetics
when comparing the age of access_time to buf_LRU_old_threshold_ms.
This fixes a bug on 64-bit systems.
This commit is contained in:
Sergey Vojtovich 2010-04-01 16:52:37 +04:00
commit b5fb2639d8
2 changed files with 8 additions and 1 deletions
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7
storage/innodb_plugin/ChangeLog
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@ -1,3 +1,10 @@
2010-03-18 The InnoDB Team
* buf0buf.ic:
When comparing the time of the first access to a block against
innodb_old_blocks_time, use 32-bit arithmetics. The comparison
was incorrect on 64-bit systems.
2010-03-11 The InnoDB Team 2010-03-11 The InnoDB Team
* buf0buf.h, buf0buf.ic: * buf0buf.h, buf0buf.ic:

2
storage/innodb_plugin/include/buf0buf.ic
View file

@ -81,7 +81,7 @@ buf_page_peek_if_too_old(
unsigned access_time = buf_page_is_accessed(bpage); unsigned access_time = buf_page_is_accessed(bpage);
if (access_time > 0 if (access_time > 0
&& (ut_time_ms() - access_time) && ((ib_uint32_t) (ut_time_ms() - access_time))
>= buf_LRU_old_threshold_ms) { >= buf_LRU_old_threshold_ms) {
return(TRUE); return(TRUE);
} }