[3.16.y-ckt stable] Patch "perf symbols: Store if there is a filter in place" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    perf symbols: Store if there is a filter in place

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt16.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 8c7166f68bd7cf591932b7c1e92d3123c27926b0 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme at redhat.com>
Date: Mon, 13 Jul 2015 08:21:57 -0300
Subject: perf symbols: Store if there is a filter in place

commit 0bc2f2f7d080561cc484d2d0a162a9396bed3383 upstream.

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 at intel.com>
Cc: Borislav Petkov <bp at suse.de>
Cc: David Ahern <dsahern at gmail.com>
Cc: Frederic Weisbecker <fweisbec at gmail.com>
Cc: Jiri Olsa <jolsa at redhat.com>
Cc: Namhyung Kim <namhyung at kernel.org>
Cc: Stephane Eranian <eranian at google.com>
Link: http://lkml.kernel.org/n/tip-f5edfmhq69vfvs1kmikq1wep@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 tools/perf/util/symbol.c | 2 ++
 tools/perf/util/symbol.h | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7b9096f29cdb..f8bdba0971cc 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1786,6 +1786,8 @@ 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 615c752dd767..5df02af0280b 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -118,7 +118,8 @@ struct symbol_conf {
 			annotate_src,
 			event_group,
 			demangle,
-			filter_relative;
+			filter_relative,
+			has_filter;
 	const char	*vmlinux_name,
 			*kallsyms_name,
 			*source_prefix,