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bpf: Make __GFP_NOWARN consistent in bpf map creation

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Some of the bpf maps are created with __GFP_NOWARN, i.e. arraymap,
bloom_filter, bpf_local_storage, bpf_struct_ops, lpm_trie,
queue_stack_maps, reuseport_array, stackmap and xskmap, while others are
created without __GFP_NOWARN, i.e. cpumap, devmap, hashtab,
local_storage, offload, ringbuf and sock_map. But there are not key
differences between the creation of these maps. So let make this
allocation flag consistent in all bpf maps creation. Then we can use a
generic helper to alloc all bpf maps.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/r/20220810151840.16394-4-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yafang Shao 2022-08-10 15:18:28 +00:00 • committed by Alexei Starovoitov
parent 8f58ee54c2
commit 992c9e13f5
7 changed files with 9 additions and 9 deletions
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4
net/core/sock_map.c
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@ -41,7 +41,7 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
attr->map_flags & ~SOCK_CREATE_FLAG_MASK)
return ERR_PTR(-EINVAL);
stab = kzalloc(sizeof(*stab), GFP_USER | __GFP_ACCOUNT);
stab = kzalloc(sizeof(*stab), GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
if (!stab)
return ERR_PTR(-ENOMEM);
@ -1076,7 +1076,7 @@ static struct bpf_map *sock_hash_alloc(union bpf_attr *attr)
if (attr->key_size > MAX_BPF_STACK)
return ERR_PTR(-E2BIG);
htab = kzalloc(sizeof(*htab), GFP_USER | __GFP_ACCOUNT);
htab = kzalloc(sizeof(*htab), GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
if (!htab)
return ERR_PTR(-ENOMEM);