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perf counters: clean up 'raw' type API

Browse source 
Impact: cleanup

Introduce a separate hw_event type.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2008-12-08 19:26:59 +01:00 • committed by Ingo Molnar
parent 4ac13294e4
commit eab656ae04
3 changed files with 18 additions and 12 deletions
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15
kernel/perf_counter.c
View file

@ -734,26 +734,27 @@ perf_counter_alloc(u32 hw_event_period, int cpu, u32 record_type)
* @pid: target pid
*/
asmlinkage int
sys_perf_counter_open(u32 hw_event_type,
u32 hw_event_period,
u32 record_type,
pid_t pid,
int cpu)
sys_perf_counter_open(struct perf_counter_event __user *uevent, u32 record_type,
pid_t pid, int cpu, int masterfd)
{
struct perf_counter_context *ctx;
struct perf_counter_event event;
struct perf_counter *counter;
int ret;
if (copy_from_user(&event, uevent, sizeof(event)) != 0)
return -EFAULT;
ctx = find_get_context(pid, cpu);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = -ENOMEM;
counter = perf_counter_alloc(hw_event_period, cpu, record_type);
counter = perf_counter_alloc(event.hw_event_period, cpu, record_type);
if (!counter)
goto err_put_context;
ret = hw_perf_counter_init(counter, hw_event_type);
ret = hw_perf_counter_init(counter, event.hw_event_type);
if (ret)
goto err_free_put_context;