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authorGregory Haskins <ghaskins@novell.com>2008-01-25 15:08:09 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-25 15:08:09 -0500
commite7693a362ec84bb5b6fd441d8a8b4b9d568a7a0c (patch)
tree078940540641a59aaf199695bfc6de3f062a987b /drivers/md/dm-delay.c
parent697f0a487f294e634a342764472b79375bb3158a (diff)
sched: de-SCHED_OTHER-ize the RT path
The current wake-up code path tries to determine if it can optimize the wake-up to "this_cpu" by computing load calculations. The problem is that these calculations are only relevant to SCHED_OTHER tasks where load is king. For RT tasks, priority is king. So the load calculation is completely wasted bandwidth. Therefore, we create a new sched_class interface to help with pre-wakeup routing decisions and move the load calculation as a function of CFS task's class. Signed-off-by: Gregory Haskins <ghaskins@novell.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/md/dm-delay.c')
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