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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yuchung Cheng <ycheng@google.com>,
	Eric Dumazet <edumazet@google.com>,
	Lawrence Brakmo <brakmo@fb.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Sasha Levin <sashal@kernel.org>,
	netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.20 096/105] bpf: fix SO_MAX_PACING_RATE to support TCP internal pacing
Date: Tue, 12 Feb 2019 21:33:27 -0500	[thread overview]
Message-ID: <20190213023336.19019-96-sashal@kernel.org> (raw)
In-Reply-To: <20190213023336.19019-1-sashal@kernel.org>

From: Yuchung Cheng <ycheng@google.com>

[ Upstream commit e224c390a6259c529f7b2a6bd215a087b3344f5c ]

If sch_fq packet scheduler is not used, TCP can fallback to
internal pacing, but this requires sk_pacing_status to
be properly set.

Fixes: 8c4b4c7e9ff0 ("bpf: Add setsockopt helper function to bpf")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/filter.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/filter.c b/net/core/filter.c
index e176b335ddc0..16350f8c8815 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -3935,6 +3935,10 @@ BPF_CALL_5(bpf_setsockopt, struct bpf_sock_ops_kern *, bpf_sock,
 			sk->sk_sndbuf = max_t(int, val * 2, SOCK_MIN_SNDBUF);
 			break;
 		case SO_MAX_PACING_RATE: /* 32bit version */
+			if (val != ~0U)
+				cmpxchg(&sk->sk_pacing_status,
+					SK_PACING_NONE,
+					SK_PACING_NEEDED);
 			sk->sk_max_pacing_rate = (val == ~0U) ? ~0UL : val;
 			sk->sk_pacing_rate = min(sk->sk_pacing_rate,
 						 sk->sk_max_pacing_rate);
-- 
2.19.1


  parent reply	other threads:[~2019-02-13  2:58 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190213023336.19019-1-sashal@kernel.org>
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 022/105] soc/fsl/qe: fix err handling of ucc_of_parse_tdm Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 032/105] net/mlx4: Get rid of page operation after dma_alloc_coherent Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 034/105] xprtrdma: Double free in rpcrdma_sendctxs_create() Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 035/105] mlxsw: spectrum_acl: Add cleanup after C-TCAM update error condition Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 036/105] mlxsw: spectrum: Add VXLAN dependency for spectrum Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 037/105] selftests: forwarding: Add a test for VLAN deletion Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 038/105] netfilter: nf_tables: fix leaking object reference count Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 043/105] netfilter: nft_flow_offload: Fix reverse route lookup Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 044/105] bpf: correctly set initial window on active Fast Open sender Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 046/105] selftests: bpf: install files tcp_(server|client)*.py Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 047/105] bpf: fix panic in stack_map_get_build_id() on i386 and arm32 Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 049/105] netfilter: nft_flow_offload: fix interaction with vrf slave device Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 053/105] net: stmmac: Fix PCI module removal leak Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 054/105] net: stmmac: dwxgmac2: Only clear interrupts that are active Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 055/105] net: stmmac: Check if CBS is supported before configuring Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 056/105] net: stmmac: Fix the logic of checking if RX Watchdog must be enabled Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 057/105] net: stmmac: Prevent RX starvation in stmmac_napi_poll() Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 058/105] isdn: i4l: isdn_tty: Fix some concurrency double-free bugs Sasha Levin
2019-02-13  2:32 ` [PATCH AUTOSEL 4.20 065/105] netfilter: nft_flow_offload: fix checking method of conntrack helper Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 070/105] vhost: return EINVAL if iovecs size does not match the message size Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 071/105] vhost/scsi: Use copy_to_iter() to send control queue response Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 072/105] xsk: Check if a queue exists during umem setup Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 073/105] selftests/bpf: install with_tunnels.sh for test_flow_dissector.sh Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 074/105] samples/bpf: workaround clang asm goto compilation errors Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 075/105] SUNRPC: Ensure rq_bytes_sent is reset before request transmission Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 076/105] SUNRPC: Ensure we respect the RPCSEC_GSS sequence number limit Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 080/105] net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ9031 Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 089/105] bpf: don't assume build-id length is always 20 bytes Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 090/105] bpf: zero out build_id for BPF_STACK_BUILD_ID_IP Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 091/105] selftests/bpf: retry tests that expect build-id Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 092/105] atm: he: fix sign-extension overflow on large shift Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 095/105] bpf: bpf_setsockopt: reset sock dst on SO_MARK changes Sasha Levin
2019-02-13  2:33 ` Sasha Levin [this message]
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 097/105] dpaa_eth: NETIF_F_LLTX requires to do our own update of trans_start Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 098/105] mlxsw: pci: Return error on PCI reset timeout Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 099/105] net: bridge: Mark FDB entries that were added by user as such Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 100/105] mlxsw: spectrum_switchdev: Do not treat static FDB entries as sticky Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 101/105] selftests: forwarding: Add a test case for externally learned FDB entries Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 103/105] net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet frames Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 104/105] net/mlx5e: Fix wrong (zero) TX drop counter indication for representor Sasha Levin
2019-02-13  2:33 ` [PATCH AUTOSEL 4.20 105/105] isdn: avm: Fix string plus integer warning from Clang Sasha Levin

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