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| author | Markus Metzger <markus.t.metzger@intel.com> | 2009-04-03 16:43:41 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-07 13:36:21 +0200 |
| commit | 4d657e51dfc042216febd4a007c6f36881f9256d (patch) | |
| tree | 3e95aa30f81737f6e30dbc046deb169e4b7426c6 /kernel/trace/trace_selftest.c | |
| parent | de79f54f5347ad7ec6ff55ccbb6d4ab2a21f6a93 (diff) | |
| download | lwn-4d657e51dfc042216febd4a007c6f36881f9256d.tar.gz lwn-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.c | 20 |
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(); |