15 static int save_stack_address(struct stack_trace *trace, unsigned long addr,  in save_stack_address()  argument
21 	if (trace->skip > 0) {  in save_stack_address()
22 		trace->skip--;  in save_stack_address()
26 	if (trace->nr_entries >= trace->max_entries)  in save_stack_address()
29 	trace->entries[trace->nr_entries++] = addr;  in save_stack_address()
33 static void noinline __save_stack_trace(struct stack_trace *trace,  in __save_stack_trace()  argument
41 		save_stack_address(trace, regs->ip, nosched);  in __save_stack_trace()
46 		if (!addr || save_stack_address(trace, addr, nosched))  in __save_stack_trace()
50 	if (trace->nr_entries < trace->max_entries)  in __save_stack_trace()
51 		trace->entries[trace->nr_entries++] = ULONG_MAX;  in __save_stack_trace()
57 void save_stack_trace(struct stack_trace *trace)  in save_stack_trace()  argument
59 	trace->skip++;  in save_stack_trace()
60 	__save_stack_trace(trace, current, NULL, false);  in save_stack_trace()
64 void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)  in save_stack_trace_regs()  argument
66 	__save_stack_trace(trace, current, regs, false);  in save_stack_trace_regs()
69 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)  in save_stack_trace_tsk()  argument
75 		trace->skip++;  in save_stack_trace_tsk()
76 	__save_stack_trace(trace, tsk, NULL, true);  in save_stack_trace_tsk()
85 __save_stack_trace_reliable(struct stack_trace *trace,  in __save_stack_trace_reliable()  argument
123 		if (save_stack_address(trace, addr, false))  in __save_stack_trace_reliable()
136 	if (trace->nr_entries < trace->max_entries)  in __save_stack_trace_reliable()
137 		trace->entries[trace->nr_entries++] = ULONG_MAX;  in __save_stack_trace_reliable()
149 				  struct stack_trace *trace)  in save_stack_trace_tsk_reliable()  argument
160 	ret = __save_stack_trace_reliable(trace, tsk);  in save_stack_trace_tsk_reliable()
192 static inline void __save_stack_trace_user(struct stack_trace *trace)  in __save_stack_trace_user()  argument
197 	if (trace->nr_entries < trace->max_entries)  in __save_stack_trace_user()
198 		trace->entries[trace->nr_entries++] = regs->ip;  in __save_stack_trace_user()
200 	while (trace->nr_entries < trace->max_entries) {  in __save_stack_trace_user()
210 			trace->entries[trace->nr_entries++] =  in __save_stack_trace_user()
219 void save_stack_trace_user(struct stack_trace *trace)  in save_stack_trace_user()  argument
225 		__save_stack_trace_user(trace);  in save_stack_trace_user()
227 	if (trace->nr_entries < trace->max_entries)  in save_stack_trace_user()
228 		trace->entries[trace->nr_entries++] = ULONG_MAX;  in save_stack_trace_user()