2012-07-03 20:03:48

by Ozan Çağlayan

[permalink] [raw]
Subject: [PATCH] compat: Backport cpufreq_quick_get_max()

This backports:

commit 3d73710880afa3d61cf57b5d4eb192e812eb7e4f
Author: Jesse Barnes <[email protected]>
Date: Tue Jun 28 10:59:12 2011 -0700

cpufreq: expose a cpufreq_quick_get_max routine

Trying kernel 3.4.0-030400-generic [OK]
Trying kernel 3.3.7-030307-generic [OK]
Trying kernel 3.2.2-030202-generic [OK]
Trying kernel 3.1.10-030110-generic [OK]
Trying kernel 3.0.18-030018-generic [OK]
Trying kernel 2.6.39-02063904-generic [OK]
Trying kernel 2.6.38-02063808-generic [OK]
Trying kernel 2.6.37-02063706-generic [OK]
Trying kernel 2.6.36-02063604-generic [OK]
Trying kernel 2.6.35-02063512-generic [OK]
Trying kernel 2.6.34-02063410-generic [OK]
Trying kernel 2.6.33-02063305-generic [OK]
Trying kernel 2.6.32-02063255-generic [OK]
Trying kernel 2.6.31-02063113-generic [OK]
Trying kernel 2.6.30-02063010-generic [OK]
Trying kernel 2.6.29-02062906-generic [OK]
Trying kernel 2.6.28-02062810-generic [OK]
Trying kernel 2.6.27-020627-generic [OK]
Trying kernel 2.6.26-020626-generic [OK]
Trying kernel 2.6.25-020625-generic [OK]
Trying kernel 2.6.24-020624-generic [OK]

Signed-off-by: Ozan Çağlayan <[email protected]>
---
compat/compat-3.1.c | 24 ++++++++++++++++++++++++
include/linux/compat-3.1.h | 1 +
2 files changed, 25 insertions(+)

diff --git a/compat/compat-3.1.c b/compat/compat-3.1.c
index d427dd3..e81a3e7 100644
--- a/compat/compat-3.1.c
+++ b/compat/compat-3.1.c
@@ -9,6 +9,30 @@
*/

#include <linux/idr.h>
+#include <linux/cpufreq.h>
+
+/* This backports:
+ * commit 3d73710880afa3d61cf57b5d4eb192e812eb7e4f
+ * Author: Jesse Barnes <[email protected]>
+ * Date: Tue Jun 28 10:59:12 2011 -0700
+ *
+ * cpufreq: expose a cpufreq_quick_get_max routine
+ */
+
+unsigned int cpufreq_quick_get_max(unsigned int cpu)
+{
+ struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
+ unsigned int ret_freq = 0;
+
+ if (policy) {
+ ret_freq = policy->max;
+ cpufreq_cpu_put(policy);
+ }
+
+ return ret_freq;
+}
+EXPORT_SYMBOL(cpufreq_quick_get_max);
+

static DEFINE_SPINLOCK(simple_ida_lock);

diff --git a/include/linux/compat-3.1.h b/include/linux/compat-3.1.h
index 5998bb1..bf8a4ef 100644
--- a/include/linux/compat-3.1.h
+++ b/include/linux/compat-3.1.h
@@ -102,6 +102,7 @@ int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end,
gfp_t gfp_mask);
void ida_simple_remove(struct ida *ida, unsigned int id);

+unsigned int cpufreq_quick_get_max(unsigned int cpu);
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)) */

#endif /* LINUX_3_1_COMPAT_H */
--
1.7.10.4



2012-07-03 20:43:15

by Luis R. Rodriguez

[permalink] [raw]
Subject: Re: [PATCH] compat: Backport cpufreq_quick_get_max()

On Tue, Jul 3, 2012 at 1:03 PM, Ozan Çağlayan <[email protected]> wrote:
> This backports:
>
> commit 3d73710880afa3d61cf57b5d4eb192e812eb7e4f
> Author: Jesse Barnes <[email protected]>
> Date: Tue Jun 28 10:59:12 2011 -0700
>
> cpufreq: expose a cpufreq_quick_get_max routine
>
> Trying kernel 3.4.0-030400-generic [OK]
> Trying kernel 3.3.7-030307-generic [OK]
> Trying kernel 3.2.2-030202-generic [OK]
> Trying kernel 3.1.10-030110-generic [OK]
> Trying kernel 3.0.18-030018-generic [OK]
> Trying kernel 2.6.39-02063904-generic [OK]
> Trying kernel 2.6.38-02063808-generic [OK]
> Trying kernel 2.6.37-02063706-generic [OK]
> Trying kernel 2.6.36-02063604-generic [OK]
> Trying kernel 2.6.35-02063512-generic [OK]
> Trying kernel 2.6.34-02063410-generic [OK]
> Trying kernel 2.6.33-02063305-generic [OK]
> Trying kernel 2.6.32-02063255-generic [OK]
> Trying kernel 2.6.31-02063113-generic [OK]
> Trying kernel 2.6.30-02063010-generic [OK]
> Trying kernel 2.6.29-02062906-generic [OK]
> Trying kernel 2.6.28-02062810-generic [OK]
> Trying kernel 2.6.27-020627-generic [OK]
> Trying kernel 2.6.26-020626-generic [OK]
> Trying kernel 2.6.25-020625-generic [OK]
> Trying kernel 2.6.24-020624-generic [OK]
>
> Signed-off-by: Ozan Çağlayan <[email protected]>

Thanks, applied and pushed, next time if you can add in the commit log
something like this:

mcgrof@tux ~/linux-stable (git::master)$ git describe --contains
3d73710880afa3d61cf57b5d4eb192e812eb7e4f
v3.1-rc1~230^2~18^2~36

That would prove this was introduced in 3.1 and that compat-3.1.[ch]
are the right files to be modifying.

Thanks!

Luis