Clarify comment for LogicalTapeSetBlocks().

Discussion: https://postgr.es/m/1229327.1711160246@sss.pgh.pa.us
Backpatch-through: 13

diff --git a/src/backend/utils/sort/logtape.c b/src/backend/utils/sort/logtape.c
index f31878bdee1aec441bd1f80e10266eed1907c9c9..14375b0796b93463f4d448a4f6400348e04f62e4 100644 (file)
--- a/src/backend/utils/sort/logtape.c
+++ b/src/backend/utils/sort/logtape.c
@@ -1174,10 +1174,8 @@ LogicalTapeTell(LogicalTape *lt, long *blocknum, int *offset)
 }
 
 /*
- * Obtain total disk space currently used by a LogicalTapeSet, in blocks.
- *
- * This should not be called while there are open write buffers; otherwise it
- * may not account for buffered data.
+ * Obtain total disk space currently used by a LogicalTapeSet, in blocks. Does
+ * not account for open write buffer, if any.
  */
 long
 LogicalTapeSetBlocks(LogicalTapeSet *lts)