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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2006-07-06 12:32:01 -0700 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2006-07-31 18:37:06 -0400 |
| commit | ea71497020c55cd39221e0abad5c1752ac6e3f47 (patch) | |
| tree | cd0fb594af99f384f11b0834d6302b956bfd6f15 | |
| parent | 3bcb09a35641f2840bd59d8f82154f830dca282c (diff) | |
| download | lwn-ea71497020c55cd39221e0abad5c1752ac6e3f47.tar.gz lwn-ea71497020c55cd39221e0abad5c1752ac6e3f47.zip | |
[CPUFREQ] [2/2] demand load governor modules.
Demand-load cpufreq governor modules if needed.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Dave Jones <davej@redhat.com>
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 9b416372a8e4..b3df613ae4ec 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -321,6 +321,23 @@ static int cpufreq_parse_governor (char *str_governor, unsigned int *policy, t = __find_governor(str_governor); + if (t == NULL) { + char *name = kasprintf(GFP_KERNEL, "cpufreq_%s", str_governor); + + if (name) { + int ret; + + mutex_unlock(&cpufreq_governor_mutex); + ret = request_module(name); + mutex_lock(&cpufreq_governor_mutex); + + if (ret == 0) + t = __find_governor(str_governor); + } + + kfree(name); + } + if (t != NULL) { *governor = t; err = 0; |