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[RFC,bpf-next,02/15] bpf: Use bpf_map_area_free instread of kvfree

Message ID 20220729152316.58205-3-laoar.shao@gmail.com (mailing list archive)
State New
Headers show
Series bpf: Introduce selectable memcg for bpf map | expand

Commit Message

Yafang Shao July 29, 2022, 3:23 p.m. UTC 
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(-)
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Patch

diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c
index ded4faeca192..3fb54feb39d4 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)