]> git.karo-electronics.de Git - karo-tx-linux.git/commit
[CPUFREQ] CPU hotplug, re-create sysfs directory and symlinks
authorJacob Shin <jacob.shin@amd.com>
Wed, 27 Apr 2011 18:32:11 +0000 (13:32 -0500)
committerDave Jones <davej@redhat.com>
Wed, 4 May 2011 15:50:57 +0000 (11:50 -0400)
commit27ecddc2a9f99ce4ac9a59a0acd77f7100b6d034
tree941daeb656c519deeb8e0bd853944536e34ab80e
parent904cc1e637a00dba1b58e7752f485f90ebf2a568
[CPUFREQ] CPU hotplug, re-create sysfs directory and symlinks

When we discover CPUs that are affected by each other's
frequency/voltage transitions, the first CPU gets a sysfs directory
created, and rest of the siblings get symlinks. Currently, when we
hotplug off only the first CPU, all of the symlinks and the sysfs
directory gets removed. Even though rest of the siblings are still
online and functional, they are orphaned, and no longer governed by
cpufreq.

This patch, given the above scenario, creates a sysfs directory for
the first sibling and symlinks for the rest of the siblings.

Please note the recursive call, it was rather too ugly to roll it
out. And the removal of redundant NULL setting (it is already taken
care of near the top of the function).

Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Acked-by: Mark Langsdorf <mark.langsdorf@amd.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>
Cc: stable@kernel.org
drivers/cpufreq/cpufreq.c