From 3d06e95b84c6602c46093bf5253c50ddc2786457 Mon Sep 17 00:00:00 2001
From: Kern Sibbald <kern@sibbald.com>
Date: Sat, 15 Aug 2009 10:59:49 +0200
Subject: [PATCH] Restrict acquire to one job at a time

---
 bacula/src/stored/acquire.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bacula/src/stored/acquire.c b/bacula/src/stored/acquire.c
index b15c954daa..2cacabcecb 100644
--- a/bacula/src/stored/acquire.c
+++ b/bacula/src/stored/acquire.c
@@ -333,6 +333,7 @@ get_out:
    return ok;
 }
 
+static pthread_mutex_t acquire_lock = PTHREAD_MUTEX_INITIALIZER;
 
 /*
  * Acquire device for writing. We permit multiple writers.
@@ -352,6 +353,7 @@ DCR *acquire_device_for_append(DCR *dcr)
 
    init_device_wait_timers(dcr);
 
+   P(acquire_lock);                   /* only one job at a time */
    dev->dlock();
    Dmsg1(100, "acquire_append device is %s\n", dev->is_tape()?"tape":
         (dev->is_dvd()?"DVD":"disk"));
@@ -421,6 +423,7 @@ DCR *acquire_device_for_append(DCR *dcr)
 get_out:
    dcr->clear_reserved();
    dev->dunlock();
+   V(acquire_lock);
    return ok ? dcr : NULL;
 }
 
-- 
2.39.5