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authorRobert Richter <robert.richter@amd.com>2008-12-19 12:59:28 +0100
committerRobert Richter <robert.richter@amd.com>2009-01-07 17:06:32 +0100
commit8350c78734e67ac1f8bfd4eb14b70ff4d01a9a12 (patch)
treea4a78d79a0d88f98fffab92e66906121841ca893
parentf4ff2364417f0092e49f6a3aa474549a56697f2d (diff)
oprofile: remove backtrace code for ibs
This code is broken since a TRACE_BEGIN_CODE is never sent to the daemon. The data becomes corrupt since the backtrace is interpreted as ibs sample. Signed-off-by: Robert Richter <robert.richter@amd.com>
-rw-r--r--drivers/oprofile/buffer_sync.c2
-rw-r--r--drivers/oprofile/cpu_buffer.c10
2 files changed, 2 insertions, 10 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 7415d2e6b3a..e61e25fda1a 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -557,11 +557,9 @@ void sync_buffer(int cpu)
break;
#ifdef CONFIG_OPROFILE_IBS
case IBS_FETCH_BEGIN:
- state = sb_bt_start;
add_ibs_begin(cpu, IBS_FETCH_CODE, mm);
break;
case IBS_OP_BEGIN:
- state = sb_bt_start;
add_ibs_begin(cpu, IBS_OP_CODE, mm);
break;
#endif
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 8ae37c9d0ec..92bf8c0d86f 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -347,17 +347,11 @@ void oprofile_add_ibs_sample(struct pt_regs * const regs,
fail = fail || add_sample(cpu_buf, ibs_sample[10], ibs_sample[11]);
}
- if (fail)
- goto fail;
-
- if (oprofile_backtrace_depth)
- oprofile_ops.backtrace(regs, oprofile_backtrace_depth);
-
- return;
+ if (!fail)
+ return;
fail:
cpu_buf->sample_lost_overflow++;
- return;
}
#endif