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Add a new option to RestoreBkpBlocks() to indicate if a cleanup lock should

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be used instead of the normal exclusive lock, and make WAL redo functions
responsible for calling RestoreBkpBlocks(). They know better what kind of a
lock they need.

At the moment, this just moves things around with no functional change, but
makes the hot standby patch that's under review cleaner.
This commit is contained in:
Heikki Linnakangas
2009-01-20 18:59:37 +00:00
parent b287f0a39e
commit b2a667b9ee
15 changed files with 95 additions and 36 deletions
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5
src/backend/access/transam/multixact.c
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@@ -42,7 +42,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/multixact.c,v 1.29 2009/01/01 17:23:36 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/multixact.c,v 1.30 2009/01/20 18:59:37 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1870,6 +1870,9 @@ multixact_redo(XLogRecPtr lsn, XLogRecord *record)
{
uint8 info = record->xl_info & ~XLR_INFO_MASK;
/* Backup blocks are not used in multixact records */
Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
if (info == XLOG_MULTIXACT_ZERO_OFF_PAGE)
{
int pageno;