From 8b65cf4c5edabdcae45ceaef7b9ac236879aae50 Mon Sep 17 00:00:00 2001 From: Kevin Grittner Date: Fri, 8 Apr 2016 14:30:10 -0500 Subject: Modify BufferGetPage() to prepare for "snapshot too old" feature This patch is a no-op patch which is intended to reduce the chances of failures of omission once the functional part of the "snapshot too old" patch goes in. It adds parameters for snapshot, relation, and an enum to specify whether the snapshot age check needs to be done for the page at this point. This initial patch passes NULL for the first two new parameters and BGP_NO_SNAPSHOT_TEST for the third. The follow-on patch will change the places where the test needs to be made. --- src/backend/access/transam/xloginsert.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'src/backend/access/transam/xloginsert.c') diff --git a/src/backend/access/transam/xloginsert.c b/src/backend/access/transam/xloginsert.c index c37003a24c2..1e336edfb59 100644 --- a/src/backend/access/transam/xloginsert.c +++ b/src/backend/access/transam/xloginsert.c @@ -228,7 +228,7 @@ XLogRegisterBuffer(uint8 block_id, Buffer buffer, uint8 flags) regbuf = ®istered_buffers[block_id]; BufferGetTag(buffer, ®buf->rnode, ®buf->forkno, ®buf->block); - regbuf->page = BufferGetPage(buffer); + regbuf->page = BufferGetPage(buffer, NULL, NULL, BGP_NO_SNAPSHOT_TEST); regbuf->flags = flags; regbuf->rdata_tail = (XLogRecData *) ®buf->rdata_head; regbuf->rdata_len = 0; @@ -825,7 +825,7 @@ XLogCheckBufferNeedsBackup(Buffer buffer) GetFullPageWriteInfo(&RedoRecPtr, &doPageWrites); - page = BufferGetPage(buffer); + page = BufferGetPage(buffer, NULL, NULL, BGP_NO_SNAPSHOT_TEST); if (doPageWrites && PageGetLSN(page) <= RedoRecPtr) return true; /* buffer requires backup */ @@ -896,7 +896,7 @@ XLogSaveBufferForHint(Buffer buffer, bool buffer_std) if (buffer_std) { /* Assume we can omit data between pd_lower and pd_upper */ - Page page = BufferGetPage(buffer); + Page page = BufferGetPage(buffer, NULL, NULL, BGP_NO_SNAPSHOT_TEST); uint16 lower = ((PageHeader) page)->pd_lower; uint16 upper = ((PageHeader) page)->pd_upper; @@ -973,7 +973,7 @@ log_newpage(RelFileNode *rnode, ForkNumber forkNum, BlockNumber blkno, XLogRecPtr log_newpage_buffer(Buffer buffer, bool page_std) { - Page page = BufferGetPage(buffer); + Page page = BufferGetPage(buffer, NULL, NULL, BGP_NO_SNAPSHOT_TEST); RelFileNode rnode; ForkNumber forkNum; BlockNumber blkno; -- cgit v1.2.3