doc/rbd: explicit remind the directory access right

It needs to create admin socket to use perf counter for
debug purpose. Remind the access right to directory.

Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com>

diff --git a/doc/rbd/libvirt.rst b/doc/rbd/libvirt.rst
index c0ba118197a3f034ac9e87cf4077f47baee8a0f8..bd58e6a330f446c3ee5a1dc40ee3c58a241d0e00 100644 (file)
--- a/doc/rbd/libvirt.rst
+++ b/doc/rbd/libvirt.rst
@@ -111,11 +111,12 @@ To configure Ceph for use with ``libvirt``, perform the following steps:
        admin socket = /var/run/ceph/$cluster-$type.$id.$pid.$cctid.asok
 
    The ``client.libvirt`` section name should match the cephx user you created
-   above.
+   above.  
    If SELinux or AppArmor is enabled, note that this could prevent the client
    process (qemu via libvirt) from doing some operations, such as writing logs
    or operate the images or admin socket to the destination locations (``/var/
-   log/ceph`` or ``/var/run/ceph``).
+   log/ceph`` or ``/var/run/ceph``). Additionally, make sure that the libvirt
+   and qemu users have appropriate access to the specified directory.
 
 
 Preparing the VM Manager