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cpufreq: Create a macro for unlock_policy_rwsem{read,write} 

On the lines of macro: lock_policy_rwsem, we can create another macro for
unlock_policy_rwsem. Lets do it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2013-02-07 15:38:42 +05:30 committed by Rafael J. Wysocki
parent 65922465b5
commit fa1d8af47f
1 changed files with 9 additions and 15 deletions
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24
drivers/cpufreq/cpufreq.c
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@ -70,8 +70,7 @@ 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) \
static 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); \
BUG_ON(policy_cpu == -1); \ BUG_ON(policy_cpu == -1); \
@ -81,23 +80,18 @@ static int lock_policy_rwsem_##mode \
} }
lock_policy_rwsem(read, cpu); lock_policy_rwsem(read, cpu);
lock_policy_rwsem(write, cpu); lock_policy_rwsem(write, cpu);
static void unlock_policy_rwsem_read(int cpu) #define unlock_policy_rwsem(mode, cpu) \
{ static void unlock_policy_rwsem_##mode(int cpu) \
int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); { \
BUG_ON(policy_cpu == -1); int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); \
up_read(&per_cpu(cpu_policy_rwsem, policy_cpu)); BUG_ON(policy_cpu == -1); \
} up_##mode(&per_cpu(cpu_policy_rwsem, policy_cpu)); \
static void unlock_policy_rwsem_write(int cpu)
{
int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu);
BUG_ON(policy_cpu == -1);
up_write(&per_cpu(cpu_policy_rwsem, policy_cpu));
} }
unlock_policy_rwsem(read, cpu);
unlock_policy_rwsem(write, cpu);
/* internal prototypes */ /* internal prototypes */
static int __cpufreq_governor(struct cpufreq_policy *policy, static int __cpufreq_governor(struct cpufreq_policy *policy,