From: Kern Sibbald <kern@sibbald.com>
Date: Sun, 23 Sep 2007 19:01:38 +0000 (+0000)
Subject: Add comments
X-Git-Tag: Release-3.0.0~2474
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=f8925fd66feab8f22cd6c39ece7a5a3ff5d1a0b9;p=bacula%2Fbacula

Add comments

git-svn-id: https://bacula.svn.sourceforge.net/svnroot/bacula/trunk@5632 91ce42f0-d328-0410-95d8-f526ca767f89
---

diff --git a/bacula/src/stored/reserve.c b/bacula/src/stored/reserve.c
index 745e176068..e90e9d0127 100644
--- a/bacula/src/stored/reserve.c
+++ b/bacula/src/stored/reserve.c
@@ -1135,6 +1135,17 @@ static int reserve_device(RCTX &rctx)
                }
                goto bail_out;
             }
+            /*
+             * Note. Under some circumstances, the Director can hand us
+             *  a Volume name that is no the same as the one on the current
+             *  drive, and in that case, the call above to find the next
+             *  volume will fail because in attempting to reserve the Volume
+             *  the code will realize that we already have a tape mounted,
+             *  and it will fail.  This *should* only happen if there are 
+             *  writers, thus the following test.  In that case, we simply
+             *  bail out, and continue waiting, rather than plunging on
+             *  and hoping that the operator can resolve the problem. 
+             */
             if (dcr->dev->num_writers != 0) {
                if (dcr->VolumeName[0]) {
                   volume_unused(dcr);