2 files changed, 8 insertions, 0 deletions

diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 4aaf7e48394f..c3eb207181fe 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -77,6 +77,13 @@ void save_stack_trace(struct stack_trace *trace)
 }
 EXPORT_SYMBOL_GPL(save_stack_trace);
 
+void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp)
+{
+        dump_trace(current, NULL, NULL, bp, &save_stack_ops, trace);
+        if (trace->nr_entries < trace->max_entries)
+                trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
         dump_trace(tsk, NULL, NULL, 0, &save_stack_ops_nosched, trace);
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 1a8cecc4f38c..551f6c7d5044 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -11,6 +11,7 @@ struct stack_trace {
 };
 
 extern void save_stack_trace(struct stack_trace *trace);
+extern void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp);
 extern void save_stack_trace_tsk(struct task_struct *tsk,
                                 struct stack_trace *trace);