linux-kernel - [PATCH 3/3] tools/vm/slabinfo: update struct slabinfo members' types

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Date:	Tue, 10 Nov 2015 22:32:06 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [PATCH 3/3] tools/vm/slabinfo: update struct slabinfo members' types

Align some of `struct slabinfo' members' types with
`struct kmem_cache' to suppress gcc warnings:

slabinfo.c:847:22: warning: comparison between signed
  and unsigned integer expressions [-Wsign-compare]
slabinfo.c:869:20: warning: comparison between signed
  and unsigned integer expressions [-Wsign-compare]
slabinfo.c:872:22: warning: comparison between signed
  and unsigned integer expressions [-Wsign-compare]
slabinfo.c:894:20: warning: comparison between signed
  and unsigned integer expressions [-Wsign-compare]

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
---
 tools/vm/slabinfo.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 86e698d0..1813854 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -19,6 +19,7 @@
 #include <getopt.h>
 #include <regex.h>
 #include <errno.h>
+#include <limits.h>
 
 #define MAX_SLABS 500
 #define MAX_ALIASES 500
@@ -28,10 +29,11 @@ struct slabinfo {
 	char *name;
 	int alias;
 	int refs;
-	int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu;
-	int hwcache_align, object_size, objs_per_slab;
-	int sanity_checks, slab_size, store_user, trace;
+	int aliases, cache_dma, cpu_slabs, destroy_by_rcu;
+	int sanity_checks, store_user, trace;
 	int order, poison, reclaim_account, red_zone;
+	unsigned int hwcache_align, align, object_size;
+	unsigned int objs_per_slab, slab_size;
 	unsigned long partial, objects, slabs, objects_partial, objects_total;
 	unsigned long alloc_fastpath, alloc_slowpath;
 	unsigned long free_fastpath, free_slowpath;
@@ -766,10 +768,10 @@ static void totals(void)
 
 	int used_slabs = 0;
 	char b1[20], b2[20], b3[20], b4[20];
-	unsigned long long max = 1ULL << 63;
+	unsigned long long max = ULLONG_MAX;
 
 	/* Object size */
-	unsigned long long min_objsize = max, max_objsize = 0, avg_objsize;
+	unsigned int min_objsize = UINT_MAX, max_objsize = 0, avg_objsize;
 
 	/* Number of partial slabs in a slabcache */
 	unsigned long long min_partial = max, max_partial = 0,
-- 
2.6.2.280.g74301d6

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