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| author | Marko Mäkelä <marko.makela@oracle.com> | 2011-05-24 11:41:31 +0300 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@oracle.com> | 2011-05-24 11:41:31 +0300 |
| commit | 34e5d4740e9eddb13ea735c294152dffe34e9e06 (patch) | |
| tree | addb9ec42342b916aba7fadeab3e2f5426405e1e /storage/innobase/include/buf0buf.h | |
| parent | 79f8d024b8fc73f310b255862d2797004b99871d (diff) | |
| download | mariadb-git-34e5d4740e9eddb13ea735c294152dffe34e9e06.tar.gz | |
Backport an InnoDB Bug #58815 (Bug #11765812) work-around from mysql-trunk:
------------------------------------------------------------
revno 2876.244.305
revision id marko.makela@oracle.com-20110413082211-e6ouhjz5rmqxcqap
parent marko.makela@oracle.com-20110413075948-kvytmc37ye1nt7d9
committer Marko Mäkelä <marko.makela@oracle.com>
branch nick 5.6-innodb
timestamp Wed 2011-04-13 11:22:11 +0300
message:
Suppress the Bug #58815 (Bug #11765812) assertion failure.
buf_page_get_gen(): Introduce BUF_GET_POSSIBLY_FREED for suppressing the
check that the file page must not have been freed.
btr_estimate_n_rows_in_range_on_level(): Pass BUF_GET_POSSIBLY_FREED and
explain in the comments why this is needed and why it should be mostly
harmless to ignore the problem. If InnoDB had always initialized all
unused fields in data files, no problem would exist.
This change does not fix the bug, it just "shoots the messenger".
rb:647 approved by Jimmy Yang
Diffstat (limited to 'storage/innobase/include/buf0buf.h')
| -rw-r--r-- | storage/innobase/include/buf0buf.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/storage/innobase/include/buf0buf.h b/storage/innobase/include/buf0buf.h index 8fb008997ab..d83d484bace 100644 --- a/storage/innobase/include/buf0buf.h +++ b/storage/innobase/include/buf0buf.h @@ -53,6 +53,9 @@ Created 11/5/1995 Heikki Tuuri /*!< Get the page only if it's in the buffer pool, if not then set a watch on the page. */ +#define BUF_GET_POSSIBLY_FREED 16 + /*!< Like BUF_GET, but do not mind + if the file page has been freed. */ /* @} */ /** @name Modes for buf_page_get_known_nowait */ /* @{ */ |