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bpf: Refine memcg-based memory accounting for sockmap and sockhash maps 

Include internal metadata into the memcg-based memory accounting.
Also include the memory allocated on updating an element.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201201215900.3569844-17-guro@fb.com
zero-sugar-mainline-defconfig
Roman Gushchin 2020-12-01 13:58:42 -08:00 committed by Alexei Starovoitov
parent e9aae8beba
commit 7846dd9f83
1 changed files with 5 additions and 4 deletions
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9
net/core/sock_map.c
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@ -39,7 +39,7 @@ 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);
stab = kzalloc(sizeof(*stab), GFP_USER | __GFP_ACCOUNT);
if (!stab)
return ERR_PTR(-ENOMEM);
@ -975,8 +975,9 @@ static struct bpf_shtab_elem *sock_hash_alloc_elem(struct bpf_shtab *htab,
}
}
new = kmalloc_node(htab->elem_size, GFP_ATOMIC | __GFP_NOWARN,
htab->map.numa_node);
new = bpf_map_kmalloc_node(&htab->map, htab->elem_size,
GFP_ATOMIC | __GFP_NOWARN,
htab->map.numa_node);
if (!new) {
atomic_dec(&htab->count);
return ERR_PTR(-ENOMEM);
@ -1116,7 +1117,7 @@ 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);
htab = kzalloc(sizeof(*htab), GFP_USER | __GFP_ACCOUNT);
if (!htab)
return ERR_PTR(-ENOMEM);