From 50481461cfe937289724643691a752fa15a600c9 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 28 Oct 2019 11:55:28 -0300 Subject: perf map_groups: Introduce for_each_entry() and for_each_entry_safe() iterators To reduce boilerplate, providing a more compact form to iterate over the maps in a map_group. Cc: Adrian Hunter Cc: Andi Kleen Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-gc3go6fmdn30twusg91t2q56@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.c | 24 ++++-------------------- 1 file changed, 4 insertions(+), 20 deletions(-) (limited to 'tools/perf/util/symbol.c') diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 042140fc4d36..a4bd61cbc2a0 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1049,11 +1049,6 @@ out_delete_from: return ret; } -struct map *map_groups__first(struct map_groups *mg) -{ - return maps__first(&mg->maps); -} - static int do_validate_kcore_modules(const char *filename, struct map_groups *kmaps) { @@ -1065,13 +1060,10 @@ static int do_validate_kcore_modules(const char *filename, if (err) return err; - old_map = map_groups__first(kmaps); - while (old_map) { - struct map *next = map_groups__next(old_map); + map_groups__for_each_entry(kmaps, old_map) { struct module_info *mi; if (!__map__is_kmodule(old_map)) { - old_map = next; continue; } @@ -1081,8 +1073,6 @@ static int do_validate_kcore_modules(const char *filename, err = -EINVAL; goto out; } - - old_map = next; } out: delete_modules(&modules); @@ -1185,9 +1175,7 @@ int map_groups__merge_in(struct map_groups *kmaps, struct map *new_map) struct map *old_map; LIST_HEAD(merged); - for (old_map = map_groups__first(kmaps); old_map; - old_map = map_groups__next(old_map)) { - + map_groups__for_each_entry(kmaps, old_map) { /* no overload with this one */ if (new_map->end < old_map->start || new_map->start >= old_map->end) @@ -1260,7 +1248,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map, { struct map_groups *kmaps = map__kmaps(map); struct kcore_mapfn_data md; - struct map *old_map, *new_map, *replacement_map = NULL; + struct map *old_map, *new_map, *replacement_map = NULL, *next; struct machine *machine; bool is_64_bit; int err, fd; @@ -1307,10 +1295,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map, } /* Remove old maps */ - old_map = map_groups__first(kmaps); - while (old_map) { - struct map *next = map_groups__next(old_map); - + map_groups__for_each_entry_safe(kmaps, old_map, next) { /* * We need to preserve eBPF maps even if they are * covered by kcore, because we need to access @@ -1318,7 +1303,6 @@ static int dso__load_kcore(struct dso *dso, struct map *map, */ if (old_map != map && !__map__is_bpf_prog(old_map)) map_groups__remove(kmaps, old_map); - old_map = next; } machine->trampolines_mapped = false; -- cgit v1.2.3-59-g8ed1b