From: Paul E. McKenney Date: Sat, 23 Jun 2012 00:06:26 +0000 (-0700) Subject: rcu: Move quiescent-state forcing into kthread X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~101^2~1^2~16 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cdfc175c25c89eedc08460b5e6239c2ec67fcb6;p=pandora-kernel.git rcu: Move quiescent-state forcing into kthread As the first step towards allowing quiescent-state forcing to be preemptible, this commit moves RCU quiescent-state forcing into the same kthread that is now used to initialize and clean up after grace periods. This is yet another step towards keeping scheduling latency down to a dull roar. Updated to change from raw_spin_lock_irqsave() to raw_spin_lock_irq() and to remove the now-unused rcu_state structure fields as suggested by Peter Zijlstra. Reported-by: Mike Galbraith Reported-by: Dimitri Sivanich Signed-off-by: Paul E. McKenney --- Reading git-diff-tree failed