# These patches add CFQ io scheduling support to util-vserver and 
# add a context flag to optionally ignore best-effort class priority changes
# You must be running the CFQ scheduler and have PREEMPT enabled
#
# Usage
# You will need the 'ionice' tool which comes with util-linux-2.13
# or can be found embedded in /usr/src/linux/Documentation/block/ioprio.txt
# It should be installed somewhere in root's PATH
#
# Configuration
/etc/vserver/XXX/ionice
                       /class
		       /priority

'class' is a file containing a number representing which scheduling
class you wish to use.
possible values are 1 for real time, 2 for best-effort, 3 for idle

'priority' is a file containing a number representing the priority level
you wish to use within that class.
possible values for real time and best-effort are 0-7 where 0 is highest
  priority values are not valid for idle

See http://www.die.net/doc/linux/man/man1/ionice.1.html for details

# Blocking ionice inside a vserver
Normally a context will be able to manipulate the best-effort priority level
of processes with it's context. A context flag has been added to silently
ignore these changes - IGNEG_NICE
It can be activated as with other flags
(see http://linux-vserver.org/Caps+and+Flags)
with the config word "igneg_ionice"