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[RFC,bpf-next,7/9] bpf: Use bpf_map_kzalloc in arraymap

Message ID 20221212003711.24977-8-laoar.shao@gmail.com (mailing list archive)
State New
Headers show
Series mm, bpf: Add BPF into /proc/meminfo | expand

Commit Message

Yafang Shao Dec. 12, 2022, 12:37 a.m. UTC 
Allocates memory after map creation, then we can use the generic helper
bpf_map_kzalloc() instead of the open-coded kzalloc().

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
 kernel/bpf/arraymap.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
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Patch

diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 484706959556..e64a4178d92d 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -1102,20 +1102,20 @@  static struct bpf_map *prog_array_map_alloc(union bpf_attr *attr)
 	struct bpf_array_aux *aux;
 	struct bpf_map *map;
 
-	aux = kzalloc(sizeof(*aux), GFP_KERNEL_ACCOUNT);
-	if (!aux)
+	map = array_map_alloc(attr);
+	if (IS_ERR(map))
 		return ERR_PTR(-ENOMEM);
 
+	aux = bpf_map_kzalloc(map, sizeof(*aux), GFP_KERNEL);
+	if (!aux) {
+		array_map_free(map);
+		return ERR_PTR(-ENOMEM);
+	}
+
 	INIT_WORK(&aux->work, prog_array_map_clear_deferred);
 	INIT_LIST_HEAD(&aux->poke_progs);
 	mutex_init(&aux->poke_mutex);
 
-	map = array_map_alloc(attr);
-	if (IS_ERR(map)) {
-		kfree(aux);
-		return map;
-	}
-
 	container_of(map, struct bpf_array, map)->aux = aux;
 	aux->map = map;