From: Pavel Hrdina <phrdina@redhat.com>
Date: Thu, 5 Sep 2019 11:22:11 +0200
Subject: [PATCH] vircgroupv2: fix setting cpu.max period

When we set cpu.max period we need to parse the cpu.max file first as
it contains both quota and period values separated by space.  When only
a single number is written to that file it will set quota.  However,
in order to change period we need to write both values.

The code was prepared for that but mistakenly used new line to end the
string with the first value.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1749227

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
(cherry picked from commit 0bd4ad193d8ba7f0104f4739f19f2731e7cf9f56)
---
 src/util/vircgroupv2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
index e36c36685b..d8abe18943 100644
--- a/src/util/vircgroupv2.c
+++ b/src/util/vircgroupv2.c
@@ -1507,7 +1507,7 @@ virCgroupV2SetCpuCfsPeriod(virCgroupPtr group,
                        _("Invalid 'cpu.max' data."));
         return -1;
     }
-    *tmp = '\n';
+    *tmp = '\0';
 
     if (virAsprintf(&value, "%s %llu", str, cfs_period) < 0)
         return -1;