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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-06-06 20:22:58 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-06-06 20:22:58 +0000 |
| commit | ee7ac7b11e9e6623871833729958662a4598fbc5 (patch) | |
| tree | 61d4f69957d8971b497bbc0cbcc42c4742a0b352 /src/backend/access/transam/clog.c | |
| parent | 4c8495a1f2ae7a027a4b3e8fdb2aa5b21a5be1fc (diff) | |
| download | postgresql-ee7ac7b11e9e6623871833729958662a4598fbc5.tar.gz postgresql-ee7ac7b11e9e6623871833729958662a4598fbc5.zip | |
Modify XLogInsert API to make callers specify whether pages to be backed
up have the standard layout with unused space between pd_lower and pd_upper.
When this is set, XLogInsert will omit the unused space without bothering
to scan it to see if it's zero. That saves time in XLogInsert, and also
allows reversion of my earlier patch to make PageRepairFragmentation et al
explicitly re-zero freed space. Per suggestion by Heikki Linnakangas.
Diffstat (limited to 'src/backend/access/transam/clog.c')
| -rw-r--r-- | src/backend/access/transam/clog.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/access/transam/clog.c b/src/backend/access/transam/clog.c index 73362330c10..2da835dbbe5 100644 --- a/src/backend/access/transam/clog.c +++ b/src/backend/access/transam/clog.c @@ -24,7 +24,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.29 2005/06/06 17:01:22 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/access/transam/clog.c,v 1.30 2005/06/06 20:22:57 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -379,9 +379,9 @@ WriteZeroPageXlogRec(int pageno) { XLogRecData rdata; - rdata.buffer = InvalidBuffer; rdata.data = (char *) (&pageno); rdata.len = sizeof(int); + rdata.buffer = InvalidBuffer; rdata.next = NULL; (void) XLogInsert(RM_CLOG_ID, CLOG_ZEROPAGE | XLOG_NO_TRAN, &rdata); } |