linux-kernel - [PATCH 2/8] slub: Replace ctor field with ops field in /sys/slab/*

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Message-ID: <Pine.LNX.4.64.0807191530100.13345@sbz-30.cs.Helsinki.FI>
Date:	Sat, 19 Jul 2008 15:30:25 +0300 (EEST)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	linux-kernel@...r.kernel.org, cl@...ux-foundation.org,
	akpm@...ux-foundation.org, riel@...hat.com
Subject: [PATCH 2/8] slub: Replace ctor field with ops field in /sys/slab/*

From: Christoph Lameter <clameter@....com>

Create an ops field in /sys/slab/*/ops to contain all the operations defined
on a slab. This will be used to display the additional operations that will
be defined soon.

Reviewed-by: Rik van Riel <riel@...hat.com>
Signed-off-by: Christoph Lameter <clameter@....com>
Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
---
 mm/slub.c |   16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 1b910ab..f21ffb9 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3843,16 +3843,18 @@ static ssize_t order_show(struct kmem_cache *s, char *buf)
 }
 SLAB_ATTR(order);
 
-static ssize_t ctor_show(struct kmem_cache *s, char *buf)
+static ssize_t ops_show(struct kmem_cache *s, char *buf)
 {
-	if (s->ctor) {
-		int n = sprint_symbol(buf, (unsigned long)s->ctor);
+	int x = 0;
 
-		return n + sprintf(buf + n, "\n");
+	if (s->ctor) {
+		x += sprintf(buf + x, "ctor : ");
+		x += sprint_symbol(buf + x, (unsigned long)s->ctor);
+		x += sprintf(buf + x, "\n");
 	}
-	return 0;
+	return x;
 }
-SLAB_ATTR_RO(ctor);
+SLAB_ATTR_RO(ops);
 
 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
 {
@@ -4185,7 +4187,7 @@ static struct attribute *slab_attrs[] = {
 	&slabs_attr.attr,
 	&partial_attr.attr,
 	&cpu_slabs_attr.attr,
-	&ctor_attr.attr,
+	&ops_attr.attr,
 	&aliases_attr.attr,
 	&align_attr.attr,
 	&sanity_checks_attr.attr,
-- 
1.5.4.3

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