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authorPeter Zijlstra <peterz@infradead.org>2012-03-01 15:04:46 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-12 20:43:17 +0100
commitc308b56b5398779cd3da0f62ab26b0453494c3d4 (patch)
treeb2d90bd6f8ebbbeaae97f4ef319f7e22fcc77436 /kernel/printk.c
parent8e3fabfde445a872c8aec2296846badf24d7c8b4 (diff)
downloadlinux-c308b56b5398779cd3da0f62ab26b0453494c3d4.tar.gz
linux-c308b56b5398779cd3da0f62ab26b0453494c3d4.tar.xz
sched: Fix nohz load accounting -- again!
Various people reported nohz load tracking still being wrecked, but Doug spotted the actual problem. We fold the nohz remainder in too soon, causing us to loose samples and under-account. So instead of playing catch-up up-front, always do a single load-fold with whatever state we encounter and only then fold the nohz remainder and play catch-up. Reported-by: Doug Smythies <dsmythies@telus.net> Reported-by: LesÃ…=82aw Kope=C4=87 <leslaw.kopec@nasza-klasa.pl> Reported-by: Aman Gupta <aman@tmm1.net> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-4v31etnhgg9kwd6ocgx3rxl8@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
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