From cbf800d9c7fb38d953ba8ae1bd27a6382114c32e Mon Sep 17 00:00:00 2001
From: "Tobin C. Harding" <tobin@kernel.org>
Date: Thu, 11 Jul 2019 20:59:46 -0700
Subject: [PATCH] tools/vm/slabinfo: add sorting info to help menu

Passing more than one sorting option has undefined behaviour.

Add an explicit statement as such to the help menu, this also has the
advantage of highlighting all the sorting options.

Link: http://lkml.kernel.org/r/20190426022622.4089-5-tobin@kernel.org
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Cc: Alexander Duyck <alexander.duyck@gmail.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>,
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Pekka Enberg <penberg@iki.fi>
Cc: Qian Cai <cai@lca.pw>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 tools/vm/slabinfo.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 469ff6157986c..68092d15e12b5 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -148,6 +148,8 @@ static void usage(void)
 		"    p | P              Poisoning\n"
 		"    u | U              Tracking\n"
 		"    t | T              Tracing\n"
+
+		"\nSorting options (--Loss, --Size, --Partial) are mutually exclusive\n"
 	);
 }
 
-- 
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