diff options
| author | Thomas Gleixner | 2008-12-08 19:26:59 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2008-12-11 15:45:46 +0100 |
| commit | eab656ae04b9d3b83265e3db01c0d2c46b748ef7 (patch) | |
| tree | a8e12bd5a2da6032234dbb20ad2c75766b96c270 /kernel/perf_counter.c | |
| parent | perf counters: protect them against CSTATE transitions (diff) | |
| download | kernel-qcow2-linux-eab656ae04b9d3b83265e3db01c0d2c46b748ef7.tar.gz kernel-qcow2-linux-eab656ae04b9d3b83265e3db01c0d2c46b748ef7.tar.xz kernel-qcow2-linux-eab656ae04b9d3b83265e3db01c0d2c46b748ef7.zip | |
perf counters: clean up 'raw' type API
Impact: cleanup
Introduce a separate hw_event type.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_counter.c')
| -rw-r--r-- | kernel/perf_counter.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 20508f053658..96c333a5b0fc 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -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; |