[systemd-devel] [PATCH] Add the CPU hotplug rule

[Zhenzhong Duan]

Cpu doesn't get online automaticly after hotplug when we test guest cpu
add/remove in xen env.

I don't have an baremetal env to test this, but I think it's same.

The rule is missed in systemd but exist in legacy udev.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan at oracle.com>
---
  rules/50-udev-default.rules |    2 ++
  1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/rules/50-udev-default.rules b/rules/50-udev-default.rules
index 2bf9c1e..ac44f81 100644
--- a/rules/50-udev-default.rules
+++ b/rules/50-udev-default.rules
@@ -71,4 +71,6 @@ KERNEL=="tun", MODE="0666", OPTIONS+="static_node=net/tun"
  
  KERNEL=="fuse", MODE="0666", OPTIONS+="static_node=fuse"
  
+KERNEL=="cpu[0-9]*", SUBSYSTEM=="cpu", ATTR{online}="1"
+
  LABEL="default_permissions_end"
-- 
1.7.3