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authorKevin Grittner <kgrittn@postgresql.org>2016-04-25 15:42:29 -0500
committerKevin Grittner <kgrittn@postgresql.org>2016-04-25 15:42:29 -0500
commite65953be4f540dce31f17db2934ee58365077272 (patch)
tree9ab8cf670f36212cbf2f961356e73add906f823c
parent6b1a213bbd6599228b2b67f7552ff7cc378797bf (diff)
downloadpostgresql-e65953be4f540dce31f17db2934ee58365077272.tar.gz
postgresql-e65953be4f540dce31f17db2934ee58365077272.zip
Fix C comment typo and redundant test
-rw-r--r--src/backend/utils/time/snapmgr.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/backend/utils/time/snapmgr.c b/src/backend/utils/time/snapmgr.c
index 8aa1f49d0fa..35f338133aa 100644
--- a/src/backend/utils/time/snapmgr.c
+++ b/src/backend/utils/time/snapmgr.c
@@ -1659,7 +1659,7 @@ TransactionIdLimitedForOldSnapshots(TransactionId recentXmin,
* This is not an assertion because we avoid the spinlock for
* performance, leaving open the possibility that xlimit could advance
* and be more current; but it seems prudent to apply this limit. It
- * might make pruning a tiny bit less agressive than it could be, but
+ * might make pruning a tiny bit less aggressive than it could be, but
* protects against data loss bugs.
*/
if (TransactionIdIsNormal(latest_xmin)
@@ -1681,9 +1681,8 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
{
int64 ts;
- /* Fast exit when old_snapshot_threshold is not used. */
- if (old_snapshot_threshold < 0)
- return;
+ /* Never call this function when old snapshot checking is disabled. */
+ Assert(old_snapshot_threshold >= 0);
/* Keep track of the latest xmin seen by any process. */
SpinLockAcquire(&oldSnapshotControl->mutex_latest_xmin);