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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-10-29 13:45:54 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-10-29 13:45:54 -0300 |
| commit | a71852147516bc1cb5b0b3cbd13639bfd4022dc8 (patch) | |
| tree | e1950ad489b1cc9f4404c643d94ff87ba595a8c1 /include/net/sock.h | |
| parent | badc0e42604c4465facd81d2323e98b3b1eb9188 (diff) | |
Linux-libre 4.2.5-gnupck-4.2.5-gnu
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index f21f0708e..4ca4c3fe4 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -826,6 +826,14 @@ static inline __must_check int sk_add_backlog(struct sock *sk, struct sk_buff *s if (sk_rcvqueues_full(sk, limit)) return -ENOBUFS; + /* + * If the skb was allocated from pfmemalloc reserves, only + * allow SOCK_MEMALLOC sockets to use it as this socket is + * helping free memory + */ + if (skb_pfmemalloc(skb) && !sock_flag(sk, SOCK_MEMALLOC)) + return -ENOMEM; + __sk_add_backlog(sk, skb); sk->sk_backlog.len += skb->truesize; return 0; |