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Kirill Smelkov
linux
Commits
19d6f7ec
Commit
19d6f7ec
authored
Jul 08, 2009
by
Dave Jones
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[CPUFREQ] Factor out symlink creation from cpufreq_add_dev
Signed-off-by:
Dave Jones
<
davej@redhat.com
>
parent
059019a3
Changes
1
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1 changed file
with
31 additions
and
20 deletions
+31
-20
drivers/cpufreq/cpufreq.c
drivers/cpufreq/cpufreq.c
+31
-20
No files found.
drivers/cpufreq/cpufreq.c
View file @
19d6f7ec
...
@@ -756,6 +756,34 @@ static struct kobj_type ktype_cpufreq = {
...
@@ -756,6 +756,34 @@ static struct kobj_type ktype_cpufreq = {
.
release
=
cpufreq_sysfs_release
,
.
release
=
cpufreq_sysfs_release
,
};
};
/* symlink affected CPUs */
int
cpufreq_add_dev_symlink
(
unsigned
int
cpu
,
struct
cpufreq_policy
*
policy
)
{
unsigned
int
j
;
int
ret
=
0
;
for_each_cpu
(
j
,
policy
->
cpus
)
{
struct
cpufreq_policy
*
managed_policy
;
struct
sys_device
*
cpu_sys_dev
;
if
(
j
==
cpu
)
continue
;
if
(
!
cpu_online
(
j
))
continue
;
dprintk
(
"CPU %u already managed, adding link
\n
"
,
j
);
managed_policy
=
cpufreq_cpu_get
(
cpu
);
cpu_sys_dev
=
get_cpu_sysdev
(
j
);
ret
=
sysfs_create_link
(
&
cpu_sys_dev
->
kobj
,
&
policy
->
kobj
,
"cpufreq"
);
if
(
ret
)
{
cpufreq_cpu_put
(
managed_policy
);
return
ret
;
}
}
return
ret
;
}
/**
/**
* cpufreq_add_dev - add a CPU device
* cpufreq_add_dev - add a CPU device
...
@@ -929,26 +957,9 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
...
@@ -929,26 +957,9 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
}
}
spin_unlock_irqrestore
(
&
cpufreq_driver_lock
,
flags
);
spin_unlock_irqrestore
(
&
cpufreq_driver_lock
,
flags
);
/* symlink affected CPUs */
ret
=
cpufreq_add_dev_symlink
(
cpu
,
policy
->
cpus
,
policy
);
for_each_cpu
(
j
,
policy
->
cpus
)
{
if
(
ret
)
struct
cpufreq_policy
*
managed_policy
;
goto
err_out_unregister
;
struct
sys_device
*
cpu_sys_dev
;
if
(
j
==
cpu
)
continue
;
if
(
!
cpu_online
(
j
))
continue
;
dprintk
(
"CPU %u already managed, adding link
\n
"
,
j
);
managed_policy
=
cpufreq_cpu_get
(
cpu
);
cpu_sys_dev
=
get_cpu_sysdev
(
j
);
ret
=
sysfs_create_link
(
&
cpu_sys_dev
->
kobj
,
&
policy
->
kobj
,
"cpufreq"
);
if
(
ret
)
{
cpufreq_cpu_put
(
managed_policy
);
goto
err_out_unregister
;
}
}
policy
->
governor
=
NULL
;
/* to assure that the starting sequence is
policy
->
governor
=
NULL
;
/* to assure that the starting sequence is
* run in cpufreq_set_policy */
* run in cpufreq_set_policy */
...
...
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