diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/oprofile/buffer_sync.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index 0abe29e7e4c7..22cdb5108360 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c @@ -579,12 +579,20 @@ void sync_buffer(int cpu) add_user_ctx_switch(new, cookie); break; } - } else if (state >= sb_bt_start && - !add_sample(mm, s, in_kernel)) { - if (state == sb_bt_start) { - state = sb_bt_ignore; - atomic_inc(&oprofile_stats.bt_lost_no_mapping); - } + continue; + } + + if (state < sb_bt_start) + /* ignore sample */ + continue; + + if (add_sample(mm, s, in_kernel)) + continue; + + /* ignore backtraces if failed to add a sample */ + if (state == sb_bt_start) { + state = sb_bt_ignore; + atomic_inc(&oprofile_stats.bt_lost_no_mapping); } } release_mm(mm); |