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Revert "virtio/vsock: fix leaks due to missing skb owner"

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This reverts commit a6650e78c4 which is
commit f9d2b1e146 upstream.

It needs to be reverted, as the function virtio_transport_free_pkt() is
in the stable Android ABI, and this function is removed in the 6.1.63
kernel as part of a series of fixes and optimizations of the virtio
networking connection.  To preserve the ABI (and thereby keeping the
slower interface), revert the commit for now.

If this needs to come back in the future, if performance for this
interface needs to be resolved, it can be done so in an ABI-safe way.

Bug: 161946584
Change-Id: Ia3ece70e6ced0b779c911cb47aa133c2d378aa82
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2023-11-29 13:00:09 +00:00
parent e8ad0104af
commit ec573670da
1 changed files with 0 additions and 10 deletions
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10
net/vmw_vsock/virtio_transport_common.c
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@@ -98,11 +98,6 @@ virtio_transport_alloc_skb(struct virtio_vsock_pkt_info *info,
info->op,
info->flags);
if (info->vsk && !skb_set_owner_sk_safe(skb, sk_vsock(info->vsk))) {
WARN_ONCE(1, "failed to allocate skb on vsock socket with sk_refcnt == 0\n");
goto out;
}
return skb;
out:
@@ -1311,11 +1306,6 @@ void virtio_transport_recv_pkt(struct virtio_transport *t,
goto free_pkt;
}
if (!skb_set_owner_sk_safe(skb, sk)) {
WARN_ONCE(1, "receiving vsock socket has sk_refcnt == 0\n");
goto free_pkt;
}
vsk = vsock_sk(sk);
lock_sock(sk);