tree 097a6ddd4127039f79e36a2e9100b653551d997d
parent 6e29ec5701e9d44fa02b96c1c5c45f7516182b65
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1241538621 +0200
committer Ingo Molnar <mingo@elte.hu> 1241546877 +0200

sched: rt: document the risk of small values in the bandwidth settings

Thomas noted that we should disallow sysctl_sched_rt_runtime == 0 for
(!RT_GROUP) since the root group always has some RT tasks in it.

Further, update the documentation to inspire clue.

[ Impact: exclude corner-case sysctl_sched_rt_runtime value ]

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090505155436.863098054@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>