[PATCH 02/15] bpf: Use bpf_map_area_free instread of kvfree

From: Yafang Shao <laoar.shao@gmail.com>
To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
	kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
	haoluo@google.com, jolsa@kernel.org, hannes@cmpxchg.org,
	mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com,
	songmuchun@bytedance.com, akpm@linux-foundation.org
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-mm@kvack.org,
	Yafang Shao <laoar.shao@gmail.com>
Subject: [PATCH 02/15] bpf: Use bpf_map_area_free instread of kvfree
Date: Wed, 10 Aug 2022 15:13:09 +0000	[thread overview]
Message-ID: <20220810151322.16163-3-laoar.shao@gmail.com> (raw)
In-Reply-To: <20220810151322.16163-1-laoar.shao@gmail.com>

bpf_map_area_alloc() should be paired with bpf_map_area_free().

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
 kernel/bpf/ringbuf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c
index ded4fae..3fb54fe 100644
--- a/kernel/bpf/ringbuf.c
+++ b/kernel/bpf/ringbuf.c
@@ -116,7 +116,7 @@ static struct bpf_ringbuf *bpf_ringbuf_area_alloc(size_t data_sz, int numa_node)
 err_free_pages:
 	for (i = 0; i < nr_pages; i++)
 		__free_page(pages[i]);
-	kvfree(pages);
+	bpf_map_area_free(pages);
 	return NULL;
 }
 
@@ -190,7 +190,7 @@ static void bpf_ringbuf_free(struct bpf_ringbuf *rb)
 	vunmap(rb);
 	for (i = 0; i < nr_pages; i++)
 		__free_page(pages[i]);
-	kvfree(pages);
+	bpf_map_area_free(pages);
 }
 
 static void ringbuf_map_free(struct bpf_map *map)
-- 
1.8.3.1

