>From 0163328efa67da1d63e504c86e323db5affa378f Mon Sep 17 00:00:00 2001
From: Wang Yufei <james.wangyufei@xxxxxxxxxx>
Date: Thu, 20 Mar 2014 07:14:01 +0000
Subject: [PATCH] cgroup: Fix start VMs coincidently failed
When I start multi VMs coincidently and any of the cgroup directories
named machine doesn't exist. There's a chance that VM start failed because
of creating directory failed:
Unable to initialize /machine cgroup: File exists
When the errno returned by mkdir in virCgroupMakeGroup is EEXIST,
we should pass it through and continue to start the VM.
Signed-off-by: Wang Yufei <james.wangyufei@xxxxxxxxxx>
---
src/util/vircgroup.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index c5925b1..a10d6f6 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -924,6 +924,10 @@ virCgroupMakeGroup(virCgroupPtr parent,
if (!virFileExists(path)) {
if (!create ||
mkdir(path, 0755) < 0) {
+ if (errno == EEXIST) {
+ VIR_FREE(path);
+ continue;
+ }
/* With a kernel that doesn't support multi-level directory
* for blkio controller, libvirt will fail and disable all
* other controllers even though they are available. So
--
1.7.12.4
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list