From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 08/23] perf maps: Move kmap::kmaps setup to maps__insert() Date: Fri, 14 Feb 2020 16:10:42 -0300 Message-ID: <20200214191057.26266-9-acme@kernel.org> References: <20200214191057.26266-1-acme@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200214191057.26266-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Ravi Bangoria , Kim Phillips , Alexander Shishkin , Michael Petlan , Peter Zijlstra , Arnaldo Carvalho de Melo List-Id: linux-perf-users.vger.kernel.org From: Jiri Olsa 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. -- 2.21.1