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Message-ID: <tip-297508216556fbf4e3f70fb97d03280741b4a709@git.kernel.org>
Date:	Tue, 5 May 2015 20:19:57 -0700
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	namhyung@...nel.org, mingo@...nel.org, acme@...hat.com,
	hpa@...or.com, tglx@...utronix.de, a.p.zijlstra@...llo.nl,
	jolsa@...nel.org, dsahern@...il.com, linux-kernel@...r.kernel.org
Subject: [tip:perf/core] perf tools:
  Move TUI-specific fields into unnamed union

Commit-ID:  297508216556fbf4e3f70fb97d03280741b4a709
Gitweb:     http://git.kernel.org/tip/297508216556fbf4e3f70fb97d03280741b4a709
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Wed, 22 Apr 2015 16:18:12 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 5 May 2015 18:13:10 -0300

perf tools: Move TUI-specific fields into unnamed union

Since perf diff only supports stdio output, TUI fields are only accessed
from perf report (or perf top).  So add a new unnamed union and move
struct hist_entry_tui and those TUI-specific fields.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1429687101-4360-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/sort.h | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index de3303f..7f0c0a8 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -93,18 +93,24 @@ struct hist_entry {
 	s32			cpu;
 	u8			cpumode;
 
-	struct hist_entry_diff	diff;
-
 	/* We are added by hists__add_dummy_entry. */
 	bool			dummy;
 
-	/* XXX These two should move to some tree widget lib */
-	u16			row_offset;
-	u16			nr_rows;
-
 	bool			init_have_children;
 	char			level;
 	u8			filtered;
+	union {
+		/*
+		 * Since perf diff only supports the stdio output, TUI
+		 * fields are only accessed from perf report (or perf
+		 * top).  So make it an union to reduce memory usage.
+		 */
+		struct hist_entry_diff	diff;
+		struct /* for TUI */ {
+			u16	row_offset;
+			u16	nr_rows;
+		};
+	};
 	char			*srcline;
 	struct symbol		*parent;
 	struct rb_root		sorted_chain;
--
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