perf symbols: Store if there is a filter in place

When setting yup the symbols library we setup several filter lists,
for dsos, comms, symbols, etc, and there is code that, if there are
filters, do certain operations, like recalculate the number of non
filtered histogram entries in the top/report TUI.

But they were considering just the "Zoom" filters, when they need to
take into account as well the above mentioned filters (perf top --comms,
--dsos, etc).

So store in symbol_conf.has_filter true if any of those filters is in
place.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-f5edfmhq69vfvs1kmikq1wep@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 48b588c6951a9476246d6c71a9ee7b8535a8be37..60f11414bb5c8c6b463980f7b767662654e0331d 100644 (file)
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1911,6 +1911,8 @@ int setup_list(struct strlist **list, const char *list_str,
                pr_err("problems parsing %s list\n", list_name);
                return -1;
        }
+
+       symbol_conf.has_filter = true;
        return 0;
 }
 

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index bef47ead1d9bd1efc5e9620f04b13714286ff616..b98ce51af1422f8e22415d6a104b4a19810940cc 100644 (file)
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -105,7 +105,8 @@ struct symbol_conf {
                        demangle_kernel,
                        filter_relative,
                        show_hist_headers,
-                       branch_callstack;
+                       branch_callstack,
+                       has_filter;
        const char      *vmlinux_name,
                        *kallsyms_name,
                        *source_prefix,