linux-kernel - [PATCH] mm/vmalloc: use list_{next,first}

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Date:	Mon, 16 Nov 2015 22:10:38 +0800
From:	Geliang Tang <geliangtang@....com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Roman Pen <r.peniaev@...il.com>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>
Cc:	Geliang Tang <geliangtang@....com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mm/vmalloc: use list_{next,first}_entry

To make the intention clearer, use list_{next,first}_entry instead
of list_entry.

Signed-off-by: Geliang Tang <geliangtang@....com>
---
 mm/vmalloc.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index d045634..c89ce9d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -441,8 +441,7 @@ nocache:
 		if (list_is_last(&first->list, &vmap_area_list))
 			goto found;
 
-		first = list_entry(first->list.next,
-				struct vmap_area, list);
+		first = list_next_entry(first, list);
 	}
 
 found:
@@ -2560,10 +2559,10 @@ static void *s_start(struct seq_file *m, loff_t *pos)
 	struct vmap_area *va;
 
 	spin_lock(&vmap_area_lock);
-	va = list_entry((&vmap_area_list)->next, typeof(*va), list);
+	va = list_first_entry(&vmap_area_list, typeof(*va), list);
 	while (n > 0 && &va->list != &vmap_area_list) {
 		n--;
-		va = list_entry(va->list.next, typeof(*va), list);
+		va = list_next_entry(va, list);
 	}
 	if (!n && &va->list != &vmap_area_list)
 		return va;
@@ -2577,7 +2576,7 @@ static void *s_next(struct seq_file *m, void *p, loff_t *pos)
 	struct vmap_area *va = p, *next;
 
 	++*pos;
-	next = list_entry(va->list.next, typeof(*va), list);
+	next = list_next_entry(va, list);
 	if (&next->list != &vmap_area_list)
 		return next;
 
-- 
2.5.0


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