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authorMarkus Metzger <markus.t.metzger@intel.com>2009-04-03 16:43:41 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-07 13:36:21 +0200
commit4d657e51dfc042216febd4a007c6f36881f9256d (patch)
tree3e95aa30f81737f6e30dbc046deb169e4b7426c6 /kernel/trace/trace_selftest.c
parentde79f54f5347ad7ec6ff55ccbb6d4ab2a21f6a93 (diff)
downloadtalos-op-linux-4d657e51dfc042216febd4a007c6f36881f9256d.tar.gz
talos-op-linux-4d657e51dfc042216febd4a007c6f36881f9256d.zip
x86, hw-branch-tracer: allocate selftest iterator on heap
Allocate the trace_iterator for the hw-branch-tracer selftest on the heap. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144556.578777000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_selftest.c')
-rw-r--r--kernel/trace/trace_selftest.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 499d01c44cd1..00dd6485bdd7 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -757,7 +757,7 @@ int
trace_selftest_startup_hw_branches(struct tracer *trace,
struct trace_array *tr)
{
- struct trace_iterator iter;
+ struct trace_iterator *iter;
struct tracer tracer;
unsigned long count;
int ret;
@@ -777,17 +777,21 @@ trace_selftest_startup_hw_branches(struct tracer *trace,
* The hw-branch tracer needs to collect the trace from the various
* cpu trace buffers - before tracing is stopped.
*/
- memset(&iter, 0, sizeof(iter));
+ iter = kzalloc(sizeof(*iter), GFP_KERNEL);
+ if (!iter)
+ return -ENOMEM;
+
memcpy(&tracer, trace, sizeof(tracer));
- iter.trace = &tracer;
- iter.tr = tr;
- iter.pos = -1;
- mutex_init(&iter.mutex);
+ iter->trace = &tracer;
+ iter->tr = tr;
+ iter->pos = -1;
+ mutex_init(&iter->mutex);
- trace->open(&iter);
+ trace->open(iter);
- mutex_destroy(&iter.mutex);
+ mutex_destroy(&iter->mutex);
+ kfree(iter);
tracing_stop();
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