20 int lock_contention_prepare(struct lock_contention *con)  in lock_contention_prepare()  argument
24 	struct evlist *evlist = con->evlist;  in lock_contention_prepare()
25 	struct target *target = con->target;  in lock_contention_prepare()
33 	bpf_map__set_value_size(skel->maps.stacks, con->max_stack * sizeof(u64));  in lock_contention_prepare()
34 	bpf_map__set_max_entries(skel->maps.lock_stat, con->map_nr_entries);  in lock_contention_prepare()
35 	bpf_map__set_max_entries(skel->maps.tstamp, con->map_nr_entries);  in lock_contention_prepare()
37 	if (con->aggr_mode == LOCK_AGGR_TASK)  in lock_contention_prepare()
38 		bpf_map__set_max_entries(skel->maps.task_data, con->map_nr_entries);  in lock_contention_prepare()
42 	if (con->save_callstack)  in lock_contention_prepare()
43 		bpf_map__set_max_entries(skel->maps.stacks, con->map_nr_entries);  in lock_contention_prepare()
51 	if (con->filters->nr_types)  in lock_contention_prepare()
52 		ntypes = con->filters->nr_types;  in lock_contention_prepare()
55 	if (con->filters->nr_syms) {  in lock_contention_prepare()
60 		for (i = 0; i < con->filters->nr_syms; i++) {  in lock_contention_prepare()
61 			sym = machine__find_kernel_symbol_by_name(con->machine,  in lock_contention_prepare()
62 								  con->filters->syms[i],  in lock_contention_prepare()
66 					   con->filters->syms[i]);  in lock_contention_prepare()
70 			addrs = realloc(con->filters->addrs,  in lock_contention_prepare()
71 					(con->filters->nr_addrs + 1) * sizeof(*addrs));  in lock_contention_prepare()
77 			addrs[con->filters->nr_addrs++] = map__unmap_ip(kmap, sym->start);  in lock_contention_prepare()
78 			con->filters->addrs = addrs;  in lock_contention_prepare()
80 		naddrs = con->filters->nr_addrs;  in lock_contention_prepare()
128 	if (con->filters->nr_types) {  in lock_contention_prepare()
134 		for (i = 0; i < con->filters->nr_types; i++)  in lock_contention_prepare()
135 			bpf_map_update_elem(fd, &con->filters->types[i], &val, BPF_ANY);  in lock_contention_prepare()
138 	if (con->filters->nr_addrs) {  in lock_contention_prepare()
144 		for (i = 0; i < con->filters->nr_addrs; i++)  in lock_contention_prepare()
145 			bpf_map_update_elem(fd, &con->filters->addrs[i], &val, BPF_ANY);  in lock_contention_prepare()
149 	skel->bss->stack_skip = con->stack_skip;  in lock_contention_prepare()
150 	skel->bss->aggr_mode = con->aggr_mode;  in lock_contention_prepare()
151 	skel->bss->needs_callstack = con->save_callstack;  in lock_contention_prepare()
152 	skel->bss->lock_owner = con->owner;  in lock_contention_prepare()
172 static const char *lock_contention_get_name(struct lock_contention *con,  in lock_contention_get_name()  argument
182 	struct machine *machine = con->machine;  in lock_contention_get_name()
184 	if (con->aggr_mode == LOCK_AGGR_TASK) {  in lock_contention_get_name()
202 	if (con->aggr_mode == LOCK_AGGR_ADDR) {  in lock_contention_get_name()
227 	       idx < con->max_stack - 1)  in lock_contention_get_name()
249 int lock_contention_read(struct lock_contention *con)  in lock_contention_read()  argument
255 	struct machine *machine = con->machine;  in lock_contention_read()
257 	size_t stack_size = con->max_stack * sizeof(*stack_trace);  in lock_contention_read()
262 	con->fails.task = skel->bss->task_fail;  in lock_contention_read()
263 	con->fails.stack = skel->bss->stack_fail;  in lock_contention_read()
264 	con->fails.time = skel->bss->time_fail;  in lock_contention_read()
265 	con->fails.data = skel->bss->data_fail;  in lock_contention_read()
271 	if (con->aggr_mode == LOCK_AGGR_TASK) {  in lock_contention_read()
278 	if (con->aggr_mode == LOCK_AGGR_ADDR) {  in lock_contention_read()
299 		if (con->save_callstack) {  in lock_contention_read()
303 				con->nr_filtered += data.count;  in lock_contention_read()
308 		switch (con->aggr_mode) {  in lock_contention_read()
336 		name = lock_contention_get_name(con, &key, stack_trace, data.flags);  in lock_contention_read()
349 		if (con->aggr_mode == LOCK_AGGR_CALLER && verbose > 0) {  in lock_contention_read()