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bpf: Use bpf_map_area_alloc consistently on bpf map creation

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Let's use the generic helper bpf_map_area_alloc() instead of the
open-coded kzalloc helpers in bpf maps creation path.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/r/20220810151840.16394-5-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yafang Shao
2022-08-10 15:18:29 +00:00
committed by Alexei Starovoitov
parent 992c9e13f5
commit 73cf09a36b
9 changed files with 28 additions and 29 deletions
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kernel/bpf/devmap.c
+3 -3
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@@ -163,13 +163,13 @@ static struct bpf_map *dev_map_alloc(union bpf_attr *attr)
if (!capable(CAP_NET_ADMIN))
return ERR_PTR(-EPERM);
dtab = kzalloc(sizeof(*dtab), GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
dtab = bpf_map_area_alloc(sizeof(*dtab), NUMA_NO_NODE);
if (!dtab)
return ERR_PTR(-ENOMEM);
err = dev_map_init_map(dtab, attr);
if (err) {
kfree(dtab);
bpf_map_area_free(dtab);
return ERR_PTR(err);
}
@@ -240,7 +240,7 @@ static void dev_map_free(struct bpf_map *map)
bpf_map_area_free(dtab->netdev_map);
}
kfree(dtab);
bpf_map_area_free(dtab);
}
static int dev_map_get_next_key(struct bpf_map *map, void *key, void *next_key)