linux-kernel - [PATCH] mm: kfence: convert to DEFINE_SEQ

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Date:   Fri, 9 Sep 2022 16:31:40 +0800
From:   Liu Shixin <liushixin2@...wei.com>
To:     Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     <kasan-dev@...glegroups.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, Liu Shixin <liushixin2@...wei.com>,
        "Kefeng Wang" <wangkefeng.wang@...wei.com>
Subject: [PATCH] mm: kfence: convert to DEFINE_SEQ_ATTRIBUTE

Use DEFINE_SEQ_ATTRIBUTE helper macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
 mm/kfence/core.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/mm/kfence/core.c b/mm/kfence/core.c
index 8c08ae2101d7..26de62a51665 100644
--- a/mm/kfence/core.c
+++ b/mm/kfence/core.c
@@ -719,24 +719,13 @@ static int show_object(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static const struct seq_operations object_seqops = {
+static const struct seq_operations objects_sops = {
 	.start = start_object,
 	.next = next_object,
 	.stop = stop_object,
 	.show = show_object,
 };
-
-static int open_objects(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &object_seqops);
-}
-
-static const struct file_operations objects_fops = {
-	.open = open_objects,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = seq_release,
-};
+DEFINE_SEQ_ATTRIBUTE(objects);
 
 static int __init kfence_debugfs_init(void)
 {
-- 
2.25.1