commit d6af702008117ca489a2f5476239d1688a517e98 Author: GeunSik,Lim Date: Tue May 12 17:20:32 2009 +0900 sched: fix typo in sched-rt-group.txt file Fix typo about static priority's range. * Kernel Space priority 0(high) to 99(low) --> User Space RT priority 99(high) to 1(low) * Kernel Space priority 100(high) to 139(low)--> User Space nice -20(high) to 19(low) Processes scheduled with SCHED_OTHER or SCHED_BATCH must be assigned the static priority 0. Processes scheduled under SCHED_FIFO or SCHED_RR can have a static priority in the range 1 to 99. (reference: $> man 2 sched_setscheduler) Signed-off-by: GeunSik Lim diff --git a/Documentation/scheduler/sched-rt-group.txt b/Documentation/scheduler/sched-rt-group.txt index 5ba4d3f..1537146 100644 --- a/Documentation/scheduler/sched-rt-group.txt +++ b/Documentation/scheduler/sched-rt-group.txt @@ -169,7 +169,7 @@ get their allocated time. Implementing SCHED_EDF might take a while to complete. Priority Inheritance is the biggest challenge as the current linux PI infrastructure is geared towards -the limited static priority levels 0-139. With deadline scheduling you need to +the limited static priority levels 0-99. With deadline scheduling you need to do deadline inheritance (since priority is inversely proportional to the deadline delta (deadline - now).