linux-kernel - [PATCH] mm/slub: helper macro __ATTR

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Date:   Sun,  6 Mar 2022 15:38:18 +0800
From:   Lianjie Zhang <zhanglianjie@...ontech.com>
To:     Christoph Lameter <cl@...ux.com>
Cc:     Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Roman Gushchin <roman.gushchin@...ux.dev>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Lianjie Zhang <zhanglianjie@...ontech.com>
Subject: [PATCH] mm/slub: helper macro __ATTR_XX to make code more clear

Signed-off-by: Lianjie Zhang <zhanglianjie@...ontech.com>

diff --git a/mm/slub.c b/mm/slub.c
index 07cdd999c3fe..59992de7d3db 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5358,12 +5358,10 @@ struct slab_attribute {
 };

 #define SLAB_ATTR_RO(_name) \
-	static struct slab_attribute _name##_attr = \
-	__ATTR(_name, 0400, _name##_show, NULL)
+	static struct slab_attribute _name##_attr = __ATTR_RO_MODE(_name, 0400)

 #define SLAB_ATTR(_name) \
-	static struct slab_attribute _name##_attr =  \
-	__ATTR(_name, 0600, _name##_show, _name##_store)
+	static struct slab_attribute _name##_attr = __ATTR_RW_MODE(_name, 0600)

 static ssize_t slab_size_show(struct kmem_cache *s, char *buf)
 {
--
2.20.1