[PATCH 0/5] Cpufreq fixes related to cpu hotplug/sysfs-writes

From: Srivatsa S. Bhat
Date: Fri Sep 06 2013 - 15:56:55 EST



Hi,

This patchset solves the cpufreq synchronization problems related to CPU
hotplug and writes to cpufreq sysfs files. The problem was reported and
described by Stephen Boyd here:

https://lkml.org/lkml/2013/8/27/643
https://lkml.org/lkml/2013/8/30/597

All the patches apply on Rafael's bleeding-edge branch on linux-pm git
tree[1].

[1]. git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge


Srivatsa S. Bhat (5):
cpufreq: Split __cpufreq_remove_dev() into 2 parts (kobj cleanup & the rest)
cpufreq: Invoke __cpufreq_remove_dev_finish() after releasing cpu_hotplug.lock
cpufreq: Synchronize the cpufreq store_*() routines with CPU hotplug
cpufreq: Remove temporary fix for race between CPU hotplug and sysfs-writes
cpufreq: Use signed type for 'ret' variable, to store negative error values

drivers/cpufreq/cpufreq.c | 90 ++++++++++++++++++++++++++++++++++-----------
include/linux/cpufreq.h | 1 -
2 files changed, 68 insertions(+), 23 deletions(-)


Thanks,
Srivatsa S. Bhat
IBM Linux Technology Center

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