perf lock: Sort map info based on class name
Instead of the random order, sort it by lock class name. Before: # perf lock info -m Address of instance: name of class 0xffffa0d940ac5310: &dentry->d_lockref.lock 0xffffa0c20b0e1cb0: &dentry->d_lockref.lock 0xffffa0d8e051cc48: &base->lock 0xffffa0d94f992110: &anon_vma->rwsem 0xffffa0d947a4f278: (null) 0xffffa0c208f6e108: &map->lock 0xffffa0c213ad32c8: &cfs_rq->removed.lock 0xffffa0c20d695888: &parent->list_lock 0xffffa0c278775278: (null) 0xffffa0c212ad4690: &dentry->d_lockref.lock After: # perf lock info -m Address of instance: name of class 0xffffa0c20d538800: &(&sig->stats_lock)->lock 0xffffa0c216d4ec40: &(&sig->stats_lock)->lock 0xffffa1fe4cb04610: &(__futex_data.queues)[i].lock 0xffffa1fe4cb07750: &(__futex_data.queues)[i].lock 0xffffa1fe4cb07b50: &(__futex_data.queues)[i].lock 0xffffa1fe4cb0b850: &(__futex_data.queues)[i].lock 0xffffa1fe4cb0bcd0: &(__futex_data.queues)[i].lock 0xffffa1fe4cb0e5d0: &(__futex_data.queues)[i].lock 0xffffa1fe4cb11ad0: &(__futex_data.queues)[i].lock Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220127000050.3011493-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -757,6 +757,21 @@ static void dump_threads(void)
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}
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}
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}
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}
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static int compare_maps(struct lock_stat *a, struct lock_stat *b)
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{
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int ret;
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if (a->name && b->name)
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ret = strcmp(a->name, b->name);
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else
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ret = !!a->name - !!b->name;
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if (!ret)
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return a->addr < b->addr;
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else
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return ret < 0;
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}
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static void dump_map(void)
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static void dump_map(void)
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{
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{
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unsigned int i;
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unsigned int i;
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@ -765,9 +780,12 @@ static void dump_map(void)
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pr_info("Address of instance: name of class\n");
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pr_info("Address of instance: name of class\n");
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for (i = 0; i < LOCKHASH_SIZE; i++) {
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for (i = 0; i < LOCKHASH_SIZE; i++) {
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hlist_for_each_entry(st, &lockhash_table[i], hash_entry) {
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hlist_for_each_entry(st, &lockhash_table[i], hash_entry) {
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pr_info(" %#llx: %s\n", (unsigned long long)st->addr, st->name);
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insert_to_result(st, compare_maps);
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}
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}
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}
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}
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while ((st = pop_from_result()))
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pr_info(" %#llx: %s\n", (unsigned long long)st->addr, st->name);
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}
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}
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static int dump_info(void)
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static int dump_info(void)
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