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net: allow __skb_ext_alloc to sleep

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mptcp calls this from the transmit side, from process context.
Allow a sleeping allocation instead of unconditional GFP_ATOMIC.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal
2020-05-16 10:46:23 +02:00
committed by David S. Miller
parent 5c8264435d
commit 4930f4831b
3 changed files with 9 additions and 5 deletions
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4
net/mptcp/protocol.c
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@@ -367,8 +367,10 @@ static void mptcp_stop_timer(struct sock *sk)
static bool mptcp_ext_cache_refill(struct mptcp_sock *msk)
{
const struct sock *sk = (const struct sock *)msk;
if (!msk->cached_ext)
msk->cached_ext = __skb_ext_alloc();
msk->cached_ext = __skb_ext_alloc(sk->sk_allocation);
return !!msk->cached_ext;
}