tree 6ef528381357a030d19493aaceb4632813b2ca9e
parent 7109c4429af3640f79a638f177fc5d05b9807149
author Ingo Molnar <mingo@elte.hu> 1188298404 +0200
committer Ingo Molnar <mingo@elte.hu> 1188298404 +0200

sched: fix wait_start_fair condition in update_stats_wait_end()

Peter Zijlstra noticed the following bug in SCHED_FEAT_SKIP_INITIAL (which
is disabled by default at the moment): it relies on se.wait_start_fair
being 0 while update_stats_wait_end() did not recognize a 0 value,
so instead of 'skipping' the initial interval we gave the new child
a maximum boost of +runtime-limit ...

(No impact on the default kernel, but nice to fix for completeness.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>