Commit 70796fb7 authored by John Fastabend's avatar John Fastabend Committed by Daniel Borkmann
Browse files

bpf, sockmap: Use truesize with sk_rmem_schedule() 



We use skb->size with sk_rmem_scheduled() which is not correct. Instead
use truesize to align with socket and tcp stack usage of sk_rmem_schedule.

Suggested-by: default avatarDaniel Borkman <daniel@iogearbox.net>
Signed-off-by: default avatarJohn Fastabend <john.fastabend@gmail.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Reviewed-by: default avatarJakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/160556570616.73229.17003722112077507863.stgit@john-XPS-13-9370
parent 36cd0e69

net/core/skmsg.c

+1 −1
Original line number Diff line number Diff line
@@ -411,7 +411,7 @@ static int sk_psock_skb_ingress(struct sk_psock *psock, struct sk_buff *skb) 
	msg = kzalloc(sizeof(*msg), __GFP_NOWARN | GFP_ATOMIC);

	if (unlikely(!msg))

		return -EAGAIN;

	if (!sk_rmem_schedule(sk, skb, skb->len)) {

	if (!sk_rmem_schedule(sk, skb, skb->truesize)) {

		kfree(msg);

		return -EAGAIN;

	}

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