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[CPUFREQ] unexport (un)lock_policy_rwsem* functions

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lock_policy_rwsem_* and unlock_policy_rwsem_* functions are scheduled
to be unexported when 2.6.33. Now there are no other callers of them
out of cpufreq.c, unexport them and make them static.

Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Amerigo Wang
2010-03-04 03:23:36 -05:00
committed by Dave Jones
parent 00e299fff3
commit 226528c610
3 changed files with 3 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
Documentation/feature-removal-schedule.txt
View File

@@ -377,16 +377,6 @@ Who: Eric Paris <eparis@redhat.com>
---------------------------- ----------------------------
What: lock_policy_rwsem_* and unlock_policy_rwsem_* will not be
exported interface anymore.
When: 2.6.33
Why: cpu_policy_rwsem has a new cleaner definition making it local to
cpufreq core and contained inside cpufreq.c. Other dependent
drivers should not use it in order to safely avoid lockdep issues.
Who: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
----------------------------
What: sound-slot/service-* module aliases and related clutters in What: sound-slot/service-* module aliases and related clutters in
sound/sound_core.c sound/sound_core.c
When: August 2010 When: August 2010

10
drivers/cpufreq/cpufreq.c
View File

@@ -68,7 +68,7 @@ static DEFINE_PER_CPU(int, cpufreq_policy_cpu);
static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem); static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem);
#define lock_policy_rwsem(mode, cpu) \ #define lock_policy_rwsem(mode, cpu) \
int lock_policy_rwsem_##mode \ static int lock_policy_rwsem_##mode \
(int cpu) \ (int cpu) \
{ \ { \
int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); \ int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); \
@@ -83,26 +83,22 @@ int lock_policy_rwsem_##mode \
} }
lock_policy_rwsem(read, cpu); lock_policy_rwsem(read, cpu);
EXPORT_SYMBOL_GPL(lock_policy_rwsem_read);
lock_policy_rwsem(write, cpu); lock_policy_rwsem(write, cpu);
EXPORT_SYMBOL_GPL(lock_policy_rwsem_write);
void unlock_policy_rwsem_read(int cpu) static void unlock_policy_rwsem_read(int cpu)
{ {
int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu);
BUG_ON(policy_cpu == -1); BUG_ON(policy_cpu == -1);
up_read(&per_cpu(cpu_policy_rwsem, policy_cpu)); up_read(&per_cpu(cpu_policy_rwsem, policy_cpu));
} }
EXPORT_SYMBOL_GPL(unlock_policy_rwsem_read);
void unlock_policy_rwsem_write(int cpu) static void unlock_policy_rwsem_write(int cpu)
{ {
int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu);
BUG_ON(policy_cpu == -1); BUG_ON(policy_cpu == -1);
up_write(&per_cpu(cpu_policy_rwsem, policy_cpu)); up_write(&per_cpu(cpu_policy_rwsem, policy_cpu));
} }
EXPORT_SYMBOL_GPL(unlock_policy_rwsem_write);
/* internal prototypes */ /* internal prototypes */

5
include/linux/cpufreq.h
View File

@@ -196,11 +196,6 @@ extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy,
int cpufreq_register_governor(struct cpufreq_governor *governor); int cpufreq_register_governor(struct cpufreq_governor *governor);
void cpufreq_unregister_governor(struct cpufreq_governor *governor); void cpufreq_unregister_governor(struct cpufreq_governor *governor);
int lock_policy_rwsem_read(int cpu);
int lock_policy_rwsem_write(int cpu);
void unlock_policy_rwsem_read(int cpu);
void unlock_policy_rwsem_write(int cpu);
/********************************************************************* /*********************************************************************
* CPUFREQ DRIVER INTERFACE * * CPUFREQ DRIVER INTERFACE *