From 484214f49bd0948d716832a94e4737ca4dd02c16 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 10 Feb 2020 15:32:18 +0100 Subject: perf maps: Move kmap::kmaps setup to maps__insert() So the kmaps pointer setup is centralized and we do not need to update it in all those places (2 current places and few more missing) after calling maps__insert(). Reported-by: Ravi Bangoria Signed-off-by: Jiri Olsa Tested-by: Ravi Bangoria Tested-by: Kim Phillips Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200210143218.24948-5-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 13 +------------ tools/perf/util/map.c | 10 ++++++++++ 2 files changed, 11 insertions(+), 12 deletions(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 0ad026561c7f..fb5c2cd44d30 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -981,7 +981,6 @@ int machine__create_extra_kernel_map(struct machine *machine, kmap = map__kmap(map); - kmap->kmaps = &machine->kmaps; strlcpy(kmap->name, xm->name, KMAP_NAME_LEN); maps__insert(&machine->kmaps, map); @@ -1091,9 +1090,6 @@ int __weak machine__create_extra_kernel_maps(struct machine *machine __maybe_unu static int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) { - struct kmap *kmap; - struct map *map; - /* In case of renewal the kernel map, destroy previous one */ machine__destroy_kernel_maps(machine); @@ -1102,14 +1098,7 @@ __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) return -1; machine->vmlinux_map->map_ip = machine->vmlinux_map->unmap_ip = identity__map_ip; - map = machine__kernel_map(machine); - kmap = map__kmap(map); - if (!kmap) - return -1; - - kmap->kmaps = &machine->kmaps; - maps__insert(&machine->kmaps, map); - + maps__insert(&machine->kmaps, machine->vmlinux_map); return 0; } diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index cea05fc9595c..a08ca276098e 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -543,6 +543,16 @@ void maps__insert(struct maps *maps, struct map *map) __maps__insert(maps, map); ++maps->nr_maps; + if (map->dso && map->dso->kernel) { + struct kmap *kmap = map__kmap(map); + + if (kmap) + kmap->kmaps = maps; + else + pr_err("Internal error: kernel dso with non kernel map\n"); + } + + /* * If we already performed some search by name, then we need to add the just * inserted map and resort. -- cgit v1.2.3