Commit-ID: df7ccfa21ef343c602ae4aa1eb7893da4408b219 Gitweb: https://git.kernel.org/tip/df7ccfa21ef343c602ae4aa1eb7893da4408b219 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Tue, 14 Nov 2017 13:30:19 -0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Tue, 28 Nov 2017 14:26:49 -0300
perf top: Ignore kptr_restrict when not sampling the kernel If all events have attr.exclude_kernel set, no need to look at kptr_restrict. Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Wang Nan <wangn...@huawei.com> Link: http://lkml.kernel.org/n/tip-yegpzg5bf2im69g0tfizq...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-top.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 477a869..1b01c27 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -732,14 +732,16 @@ static void perf_event__process_sample(struct perf_tool *tool, if (!machine->kptr_restrict_warned && symbol_conf.kptr_restrict && al.cpumode == PERF_RECORD_MISC_KERNEL) { - ui__warning( + if (!perf_evlist__exclude_kernel(top->session->evlist)) { + ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict.\n\n" "Kernel%s samples will not be resolved.\n", al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? " modules" : ""); - if (use_browser <= 0) - sleep(5); + if (use_browser <= 0) + sleep(5); + } machine->kptr_restrict_warned = true; }
