3  * Stack trace management functions
17 static void save_raw_context_stack(struct stack_trace *trace,  in save_raw_context_stack()  argument
27 			if (trace->skip > 0)  in save_raw_context_stack()
28 				trace->skip--;  in save_raw_context_stack()
30 				trace->entries[trace->nr_entries++] = addr;  in save_raw_context_stack()
31 			if (trace->nr_entries >= trace->max_entries)  in save_raw_context_stack()
37 static void save_context_stack(struct stack_trace *trace,  in save_context_stack()  argument
50 			save_raw_context_stack(trace, sp, savesched);  in save_context_stack()
55 			if (trace->skip > 0)  in save_context_stack()
56 				trace->skip--;  in save_context_stack()
58 				trace->entries[trace->nr_entries++] = pc;  in save_context_stack()
59 			if (trace->nr_entries >= trace->max_entries)  in save_context_stack()
65 	save_raw_context_stack(trace, sp, savesched);  in save_context_stack()
72 void save_stack_trace(struct stack_trace *trace)  in save_stack_trace()  argument
74 	save_stack_trace_tsk(current, trace);  in save_stack_trace()
78 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)  in save_stack_trace_tsk()  argument
83 	WARN_ON(trace->nr_entries || !trace->max_entries);  in save_stack_trace_tsk()
91 	save_context_stack(trace, tsk, regs, tsk == current);  in save_stack_trace_tsk()