From: Viresh Kumar Date: Tue, 2 Jul 2013 11:06:28 +0000 (+0530) Subject: cpufreq: Fix serialization of frequency transitions X-Git-Tag: v3.11-rc1~26^2~2^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=266c13d767be61a17d8e6f2310b9b7c46278273b;p=pandora-kernel.git cpufreq: Fix serialization of frequency transitions Commit 7c30ed ("cpufreq: make sure frequency transitions are serialized") interacts poorly with systems that have a single core freqency for all cores. On such systems we have a single policy for all cores with several CPUs. When we do a frequency transition the governor calls the pre and post change notifiers which causes cpufreq_notify_transition() per CPU. Since the policy is the same for all of them all CPUs after the first and the warnings added are generated by checking a per-policy flag the warnings will be triggered for all cores after the first. Fix this by allowing notifier to be called for n times. Where n is the number of cpus in policy->cpus. Reported-and-tested-by: Mark Brown Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- Reading git-diff-tree failed