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path: root/drivers/oprofile/cpu_buffer.c
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Diffstat (limited to 'drivers/oprofile/cpu_buffer.c')
-rw-r--r--drivers/oprofile/cpu_buffer.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index a83c3db7d18f..c93d3d2640ab 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -64,6 +64,8 @@ int alloc_cpu_buffers(void)
64 b->head_pos = 0; 64 b->head_pos = 0;
65 b->sample_received = 0; 65 b->sample_received = 0;
66 b->sample_lost_overflow = 0; 66 b->sample_lost_overflow = 0;
67 b->backtrace_aborted = 0;
68 b->sample_invalid_eip = 0;
67 b->cpu = i; 69 b->cpu = i;
68 INIT_DELAYED_WORK(&b->work, wq_sync_buffer); 70 INIT_DELAYED_WORK(&b->work, wq_sync_buffer);
69 } 71 }
@@ -175,6 +177,11 @@ static int log_sample(struct oprofile_cpu_buffer * cpu_buf, unsigned long pc,
175 177
176 cpu_buf->sample_received++; 178 cpu_buf->sample_received++;
177 179
180 if (pc == ESCAPE_CODE) {
181 cpu_buf->sample_invalid_eip++;
182 return 0;
183 }
184
178 if (nr_available_slots(cpu_buf) < 3) { 185 if (nr_available_slots(cpu_buf) < 3) {
179 cpu_buf->sample_lost_overflow++; 186 cpu_buf->sample_lost_overflow++;
180 return 0; 187 return 0;