C comment: clarify that WAL files can be _recycled_ or removed

Reported-by: Michael Paquier
Discussion: https://postgr.es/m/CAB7nPqSDdF0heotQU3gsepgqx+9c+6KjLd3R6aNYH7KKfDd2ig@mail.gmail.com

Author: Michael Paquier

Backpatch-through: master

diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 1159dff1a692c619104d8c75db17633ec55bb6f3..ef9b8e4fb9688ab4f7247b067b2ecf35772c8da6 100644 (file)
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -3692,7 +3692,8 @@ RemoveOldXlogFiles(XLogSegNo segno, XLogRecPtr lastredoptr, XLogRecPtr endptr,
 }
 
 /*
- * Remove WAL files that are not part of the given timeline's history.
+ * Recycle or remove WAL files that are not part of the given timeline's
+ * history.
  *
  * This is called during recovery, whenever we switch to follow a new
  * timeline, and at the end of recovery when we create a new timeline. We