linux-kernel - [PATCH 3/6] mm/slub: add cpu_slabs_[total

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Date:   Wed, 17 May 2017 22:11:43 +0800
From:   Wei Yang <richard.weiyang@...il.com>
To:     cl@...ux.com, penberg@...nel.org, rientjes@...gle.com,
        akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Wei Yang <richard.weiyang@...il.com>
Subject: [PATCH 3/6] mm/slub: add cpu_slabs_[total_]objects sysfs

For cpu slabs, show_slab_objects could display statistics for objects.

This patch just adds an entry to reflect it.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
---
 mm/slub.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/mm/slub.c b/mm/slub.c
index c7dddf22829d..f2f751e6cb96 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4958,6 +4958,18 @@ static ssize_t cpu_slabs_show(struct kmem_cache *s, char *buf)
 }
 SLAB_ATTR_RO(cpu_slabs);
 
+static ssize_t cpu_slabs_objects_show(struct kmem_cache *s, char *buf)
+{
+	return show_slab_objects(s, buf, SO_CPU|SO_OBJECTS);
+}
+SLAB_ATTR_RO(cpu_slabs_objects);
+
+static ssize_t cpu_slabs_total_objects_show(struct kmem_cache *s, char *buf)
+{
+	return show_slab_objects(s, buf, SO_CPU|SO_TOTAL);
+}
+SLAB_ATTR_RO(cpu_slabs_total_objects);
+
 static ssize_t objects_show(struct kmem_cache *s, char *buf)
 {
 	return show_slab_objects(s, buf, SO_ALL|SO_OBJECTS);
@@ -5354,6 +5366,8 @@ static struct attribute *slab_attrs[] = {
 	&objects_partial_attr.attr,
 	&total_objects_partial_attr.attr,
 	&partial_attr.attr,
+	&cpu_slabs_objects_attr.attr,
+	&cpu_slabs_total_objects_attr.attr,
 	&cpu_slabs_attr.attr,
 	&ctor_attr.attr,
 	&aliases_attr.attr,
-- 
2.11.0