diff options
Diffstat (limited to 'drivers/oprofile/cpu_buffer.h')
| -rw-r--r-- | drivers/oprofile/cpu_buffer.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h index d3cc26264db..08706991fdd 100644 --- a/drivers/oprofile/cpu_buffer.h +++ b/drivers/oprofile/cpu_buffer.h @@ -52,6 +52,18 @@ DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer); void cpu_buffer_reset(struct oprofile_cpu_buffer *cpu_buf); +static inline +struct op_sample *cpu_buffer_write_entry(struct oprofile_cpu_buffer *cpu_buf) +{ + return &cpu_buf->buffer[cpu_buf->head_pos]; +} + +static inline +struct op_sample *cpu_buffer_read_entry(struct oprofile_cpu_buffer *cpu_buf) +{ + return &cpu_buf->buffer[cpu_buf->tail_pos]; +} + /* transient events for the CPU buffer -> event buffer */ #define CPU_IS_KERNEL 1 #define CPU_TRACE_BEGIN 2 |