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Miller" , Jakub Kicinski , Paolo Abeni , Eric Dumazet , "Jay Vosburgh" , Andy Gospodarek CC: , Saeed Mahameed , Gal Pressman , Leon Romanovsky , Jianbo Liu , Cosmin Ratiu , Tariq Toukan Subject: [PATCH net 1/4] bonding: implement xfrm state xdo_dev_state_free API Date: Mon, 29 Jul 2024 15:44:02 +0300 Message-ID: <20240729124406.1824592-2-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240729124406.1824592-1-tariqt@nvidia.com> References: <20240729124406.1824592-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003F66:EE_|MW4PR12MB7262:EE_ X-MS-Office365-Filtering-Correlation-Id: 929ee853-a0b1-438c-606a-08dcafcc5bae X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|82310400026|1800799024|376014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(36860700013)(82310400026)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2024 12:45:42.4862 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 929ee853-a0b1-438c-606a-08dcafcc5bae X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00003F66.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7262 X-Patchwork-Delegate: kuba@kernel.org From: Jianbo Liu Add this implementation for bonding, so hardware resources can be freed after xfrm state is deleted. Fixes: 9a5605505d9c ("bonding: Add struct bond_ipesc to manage SA") Signed-off-by: Jianbo Liu Reviewed-by: Cosmin Ratiu Signed-off-by: Tariq Toukan --- drivers/net/bonding/bond_main.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 1cd92c12e782..3b880ff2b82a 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -588,6 +588,15 @@ static void bond_ipsec_del_sa_all(struct bonding *bond) rcu_read_unlock(); } +static void bond_ipsec_free_sa(struct xfrm_state *xs) +{ + struct net_device *real_dev = xs->xso.real_dev; + + if (real_dev && real_dev->xfrmdev_ops && + real_dev->xfrmdev_ops->xdo_dev_state_free) + real_dev->xfrmdev_ops->xdo_dev_state_free(xs); +} + /** * bond_ipsec_offload_ok - can this packet use the xfrm hw offload * @skb: current data packet @@ -632,6 +641,7 @@ static bool bond_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *xs) static const struct xfrmdev_ops bond_xfrmdev_ops = { .xdo_dev_state_add = bond_ipsec_add_sa, .xdo_dev_state_delete = bond_ipsec_del_sa, + .xdo_dev_state_free = bond_ipsec_free_sa, .xdo_dev_offload_ok = bond_ipsec_offload_ok, }; 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Miller" , Jakub Kicinski , Paolo Abeni , Eric Dumazet , "Jay Vosburgh" , Andy Gospodarek CC: , Saeed Mahameed , Gal Pressman , Leon Romanovsky , Jianbo Liu , Cosmin Ratiu , Tariq Toukan Subject: [PATCH net 2/4] bonding: call xfrm state xdo_dev_state_free after deletion Date: Mon, 29 Jul 2024 15:44:03 +0300 Message-ID: <20240729124406.1824592-3-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240729124406.1824592-1-tariqt@nvidia.com> References: <20240729124406.1824592-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003F61:EE_|PH7PR12MB6810:EE_ X-MS-Office365-Filtering-Correlation-Id: 42db3353-b8bb-49a1-6380-08dcafcc5e27 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|82310400026|1800799024|376014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(36860700013)(82310400026)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2024 12:45:46.6190 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 42db3353-b8bb-49a1-6380-08dcafcc5e27 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00003F61.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6810 X-Patchwork-Delegate: kuba@kernel.org From: Jianbo Liu Need to call xdo_dev_state_free API to avoid hardware resource leakage when deleting all SAs from old active real interface. Fixes: 9a5605505d9c ("bonding: Add struct bond_ipesc to manage SA") Signed-off-by: Jianbo Liu Reviewed-by: Cosmin Ratiu Signed-off-by: Tariq Toukan --- drivers/net/bonding/bond_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 3b880ff2b82a..551cebfa3261 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -581,6 +581,8 @@ static void bond_ipsec_del_sa_all(struct bonding *bond) __func__); } else { slave->dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs); + if (slave->dev->xfrmdev_ops->xdo_dev_state_free) + slave->dev->xfrmdev_ops->xdo_dev_state_free(ipsec->xs); } ipsec->xs->xso.real_dev = NULL; } From patchwork Mon Jul 29 12:44:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tariq Toukan X-Patchwork-Id: 13744853 X-Patchwork-Delegate: kuba@kernel.org Received: from NAM02-BN1-obe.outbound.protection.outlook.com (mail-bn1nam02on2084.outbound.protection.outlook.com [40.107.212.84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 636BE146D6D for ; 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Miller" , Jakub Kicinski , Paolo Abeni , Eric Dumazet , "Jay Vosburgh" , Andy Gospodarek CC: , Saeed Mahameed , Gal Pressman , Leon Romanovsky , Jianbo Liu , Cosmin Ratiu , Tariq Toukan Subject: [PATCH net 3/4] bonding: extract the use of real_device into local variable Date: Mon, 29 Jul 2024 15:44:04 +0300 Message-ID: <20240729124406.1824592-4-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240729124406.1824592-1-tariqt@nvidia.com> References: <20240729124406.1824592-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003F61:EE_|DS0PR12MB7608:EE_ X-MS-Office365-Filtering-Correlation-Id: 4fc4ea4d-6cd2-4284-2fdc-08dcafcc60fc X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(376014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2024 12:45:51.3690 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4fc4ea4d-6cd2-4284-2fdc-08dcafcc60fc X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00003F61.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7608 X-Patchwork-Delegate: kuba@kernel.org From: Jianbo Liu Add a local variable for slave->dev, to prepare for the lock change in the next patch. There is no functionality change. Fixes: 9a5605505d9c ("bonding: Add struct bond_ipesc to manage SA") Signed-off-by: Jianbo Liu Reviewed-by: Cosmin Ratiu Signed-off-by: Tariq Toukan --- drivers/net/bonding/bond_main.c | 58 +++++++++++++++++++-------------- 1 file changed, 33 insertions(+), 25 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 551cebfa3261..763d807be311 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -427,6 +427,7 @@ static int bond_ipsec_add_sa(struct xfrm_state *xs, struct netlink_ext_ack *extack) { struct net_device *bond_dev = xs->xso.dev; + struct net_device *real_dev; struct bond_ipsec *ipsec; struct bonding *bond; struct slave *slave; @@ -443,9 +444,10 @@ static int bond_ipsec_add_sa(struct xfrm_state *xs, return -ENODEV; } - if (!slave->dev->xfrmdev_ops || - !slave->dev->xfrmdev_ops->xdo_dev_state_add || - netif_is_bond_master(slave->dev)) { + real_dev = slave->dev; + if (!real_dev->xfrmdev_ops || + !real_dev->xfrmdev_ops->xdo_dev_state_add || + netif_is_bond_master(real_dev)) { NL_SET_ERR_MSG_MOD(extack, "Slave does not support ipsec offload"); rcu_read_unlock(); return -EINVAL; @@ -456,9 +458,9 @@ static int bond_ipsec_add_sa(struct xfrm_state *xs, rcu_read_unlock(); return -ENOMEM; } - xs->xso.real_dev = slave->dev; - err = slave->dev->xfrmdev_ops->xdo_dev_state_add(xs, extack); + xs->xso.real_dev = real_dev; + err = real_dev->xfrmdev_ops->xdo_dev_state_add(xs, extack); if (!err) { ipsec->xs = xs; INIT_LIST_HEAD(&ipsec->list); @@ -475,6 +477,7 @@ static int bond_ipsec_add_sa(struct xfrm_state *xs, static void bond_ipsec_add_sa_all(struct bonding *bond) { struct net_device *bond_dev = bond->dev; + struct net_device *real_dev; struct bond_ipsec *ipsec; struct slave *slave; @@ -483,12 +486,13 @@ static void bond_ipsec_add_sa_all(struct bonding *bond) if (!slave) goto out; - if (!slave->dev->xfrmdev_ops || - !slave->dev->xfrmdev_ops->xdo_dev_state_add || - netif_is_bond_master(slave->dev)) { + real_dev = slave->dev; + if (!real_dev->xfrmdev_ops || + !real_dev->xfrmdev_ops->xdo_dev_state_add || + netif_is_bond_master(real_dev)) { spin_lock_bh(&bond->ipsec_lock); if (!list_empty(&bond->ipsec_list)) - slave_warn(bond_dev, slave->dev, + slave_warn(bond_dev, real_dev, "%s: no slave xdo_dev_state_add\n", __func__); spin_unlock_bh(&bond->ipsec_lock); @@ -497,9 +501,9 @@ static void bond_ipsec_add_sa_all(struct bonding *bond) spin_lock_bh(&bond->ipsec_lock); list_for_each_entry(ipsec, &bond->ipsec_list, list) { - ipsec->xs->xso.real_dev = slave->dev; - if (slave->dev->xfrmdev_ops->xdo_dev_state_add(ipsec->xs, NULL)) { - slave_warn(bond_dev, slave->dev, "%s: failed to add SA\n", __func__); + ipsec->xs->xso.real_dev = real_dev; + if (real_dev->xfrmdev_ops->xdo_dev_state_add(ipsec->xs, NULL)) { + slave_warn(bond_dev, real_dev, "%s: failed to add SA\n", __func__); ipsec->xs->xso.real_dev = NULL; } } @@ -515,6 +519,7 @@ static void bond_ipsec_add_sa_all(struct bonding *bond) static void bond_ipsec_del_sa(struct xfrm_state *xs) { struct net_device *bond_dev = xs->xso.dev; + struct net_device *real_dev; struct bond_ipsec *ipsec; struct bonding *bond; struct slave *slave; @@ -532,16 +537,17 @@ static void bond_ipsec_del_sa(struct xfrm_state *xs) if (!xs->xso.real_dev) goto out; - WARN_ON(xs->xso.real_dev != slave->dev); + real_dev = slave->dev; + WARN_ON(xs->xso.real_dev != real_dev); - if (!slave->dev->xfrmdev_ops || - !slave->dev->xfrmdev_ops->xdo_dev_state_delete || - netif_is_bond_master(slave->dev)) { - slave_warn(bond_dev, slave->dev, "%s: no slave xdo_dev_state_delete\n", __func__); + if (!real_dev->xfrmdev_ops || + !real_dev->xfrmdev_ops->xdo_dev_state_delete || + netif_is_bond_master(real_dev)) { + slave_warn(bond_dev, real_dev, "%s: no slave xdo_dev_state_delete\n", __func__); goto out; } - slave->dev->xfrmdev_ops->xdo_dev_state_delete(xs); + real_dev->xfrmdev_ops->xdo_dev_state_delete(xs); out: spin_lock_bh(&bond->ipsec_lock); list_for_each_entry(ipsec, &bond->ipsec_list, list) { @@ -558,6 +564,7 @@ static void bond_ipsec_del_sa(struct xfrm_state *xs) static void bond_ipsec_del_sa_all(struct bonding *bond) { struct net_device *bond_dev = bond->dev; + struct net_device *real_dev; struct bond_ipsec *ipsec; struct slave *slave; @@ -568,21 +575,22 @@ static void bond_ipsec_del_sa_all(struct bonding *bond) return; } + real_dev = slave->dev; spin_lock_bh(&bond->ipsec_lock); list_for_each_entry(ipsec, &bond->ipsec_list, list) { if (!ipsec->xs->xso.real_dev) continue; - if (!slave->dev->xfrmdev_ops || - !slave->dev->xfrmdev_ops->xdo_dev_state_delete || - netif_is_bond_master(slave->dev)) { - slave_warn(bond_dev, slave->dev, + if (!real_dev->xfrmdev_ops || + !real_dev->xfrmdev_ops->xdo_dev_state_delete || + netif_is_bond_master(real_dev)) { + slave_warn(bond_dev, real_dev, "%s: no slave xdo_dev_state_delete\n", __func__); } else { - slave->dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs); - if (slave->dev->xfrmdev_ops->xdo_dev_state_free) - slave->dev->xfrmdev_ops->xdo_dev_state_free(ipsec->xs); + real_dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs); + if (real_dev->xfrmdev_ops->xdo_dev_state_free) + real_dev->xfrmdev_ops->xdo_dev_state_free(ipsec->xs); 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Miller" , Jakub Kicinski , Paolo Abeni , Eric Dumazet , "Jay Vosburgh" , Andy Gospodarek CC: , Saeed Mahameed , Gal Pressman , Leon Romanovsky , Jianbo Liu , Cosmin Ratiu , Tariq Toukan Subject: [PATCH net 4/4] bonding: change ipsec_lock from spin lock to mutex Date: Mon, 29 Jul 2024 15:44:05 +0300 Message-ID: <20240729124406.1824592-5-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240729124406.1824592-1-tariqt@nvidia.com> References: <20240729124406.1824592-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003F65:EE_|SJ2PR12MB7944:EE_ X-MS-Office365-Filtering-Correlation-Id: 7911fb8d-3fda-44bc-b9d7-08dcafcc6345 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|376014|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(36860700013)(376014)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2024 12:45:55.2220 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7911fb8d-3fda-44bc-b9d7-08dcafcc6345 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00003F65.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7944 X-Patchwork-Delegate: kuba@kernel.org From: Jianbo Liu In the cited commit, bond->ipsec_lock is added to protect ipsec_list, hence xdo_dev_state_add and xdo_dev_state_delete are called inside this lock. As ipsec_lock is spin lock and such xfrmdev ops may sleep, "scheduling while atomic" will be triggered when changing bond's active slave. [ 101.055189] BUG: scheduling while atomic: bash/902/0x00000200 [ 101.055726] Modules linked in: [ 101.058211] CPU: 3 PID: 902 Comm: bash Not tainted 6.9.0-rc4+ #1 [ 101.058760] Hardware name: [ 101.059434] Call Trace: [ 101.059436] [ 101.060873] dump_stack_lvl+0x51/0x60 [ 101.061275] __schedule_bug+0x4e/0x60 [ 101.061682] __schedule+0x612/0x7c0 [ 101.062078] ? __mod_timer+0x25c/0x370 [ 101.062486] schedule+0x25/0xd0 [ 101.062845] schedule_timeout+0x77/0xf0 [ 101.063265] ? asm_common_interrupt+0x22/0x40 [ 101.063724] ? __bpf_trace_itimer_state+0x10/0x10 [ 101.064215] __wait_for_common+0x87/0x190 [ 101.064648] ? usleep_range_state+0x90/0x90 [ 101.065091] cmd_exec+0x437/0xb20 [mlx5_core] [ 101.065569] mlx5_cmd_do+0x1e/0x40 [mlx5_core] [ 101.066051] mlx5_cmd_exec+0x18/0x30 [mlx5_core] [ 101.066552] mlx5_crypto_create_dek_key+0xea/0x120 [mlx5_core] [ 101.067163] ? bonding_sysfs_store_option+0x4d/0x80 [bonding] [ 101.067738] ? kmalloc_trace+0x4d/0x350 [ 101.068156] mlx5_ipsec_create_sa_ctx+0x33/0x100 [mlx5_core] [ 101.068747] mlx5e_xfrm_add_state+0x47b/0xaa0 [mlx5_core] [ 101.069312] bond_change_active_slave+0x392/0x900 [bonding] [ 101.069868] bond_option_active_slave_set+0x1c2/0x240 [bonding] [ 101.070454] __bond_opt_set+0xa6/0x430 [bonding] [ 101.070935] __bond_opt_set_notify+0x2f/0x90 [bonding] [ 101.071453] bond_opt_tryset_rtnl+0x72/0xb0 [bonding] [ 101.071965] bonding_sysfs_store_option+0x4d/0x80 [bonding] [ 101.072567] kernfs_fop_write_iter+0x10c/0x1a0 [ 101.073033] vfs_write+0x2d8/0x400 [ 101.073416] ? alloc_fd+0x48/0x180 [ 101.073798] ksys_write+0x5f/0xe0 [ 101.074175] do_syscall_64+0x52/0x110 [ 101.074576] entry_SYSCALL_64_after_hwframe+0x4b/0x53 As bond_ipsec_add_sa_all and bond_ipsec_del_sa_all are only called from bond_change_active_slave, which requires holding the RTNL lock. And bond_ipsec_add_sa and bond_ipsec_del_sa are xfrm state xdo_dev_state_add and xdo_dev_state_delete APIs, which are in user context. So ipsec_lock doesn't have to be spin lock, change it to mutex, and thus the above issue can be resolved. Fixes: 9a5605505d9c ("bonding: Add struct bond_ipesc to manage SA") Signed-off-by: Jianbo Liu Reviewed-by: Cosmin Ratiu Signed-off-by: Tariq Toukan --- drivers/net/bonding/bond_main.c | 73 ++++++++++++++++++--------------- include/net/bonding.h | 2 +- 2 files changed, 41 insertions(+), 34 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 763d807be311..bced29813478 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -439,38 +439,33 @@ static int bond_ipsec_add_sa(struct xfrm_state *xs, rcu_read_lock(); bond = netdev_priv(bond_dev); slave = rcu_dereference(bond->curr_active_slave); - if (!slave) { - rcu_read_unlock(); + real_dev = slave ? slave->dev : NULL; + rcu_read_unlock(); + if (!real_dev) return -ENODEV; - } - real_dev = slave->dev; if (!real_dev->xfrmdev_ops || !real_dev->xfrmdev_ops->xdo_dev_state_add || netif_is_bond_master(real_dev)) { NL_SET_ERR_MSG_MOD(extack, "Slave does not support ipsec offload"); - rcu_read_unlock(); return -EINVAL; } ipsec = kmalloc(sizeof(*ipsec), GFP_ATOMIC); - if (!ipsec) { - rcu_read_unlock(); + if (!ipsec) return -ENOMEM; - } xs->xso.real_dev = real_dev; err = real_dev->xfrmdev_ops->xdo_dev_state_add(xs, extack); if (!err) { ipsec->xs = xs; INIT_LIST_HEAD(&ipsec->list); - spin_lock_bh(&bond->ipsec_lock); + mutex_lock(&bond->ipsec_lock); list_add(&ipsec->list, &bond->ipsec_list); - spin_unlock_bh(&bond->ipsec_lock); + mutex_unlock(&bond->ipsec_lock); } else { kfree(ipsec); } - rcu_read_unlock(); return err; } @@ -482,34 +477,44 @@ static void bond_ipsec_add_sa_all(struct bonding *bond) struct slave *slave; rcu_read_lock(); - slave = rcu_dereference(bond->curr_active_slave); - if (!slave) - goto out; + slave = rtnl_dereference(bond->curr_active_slave); + real_dev = slave ? slave->dev : NULL; + rcu_read_unlock(); + if (!real_dev) + return; - real_dev = slave->dev; + mutex_lock(&bond->ipsec_lock); if (!real_dev->xfrmdev_ops || !real_dev->xfrmdev_ops->xdo_dev_state_add || netif_is_bond_master(real_dev)) { - spin_lock_bh(&bond->ipsec_lock); if (!list_empty(&bond->ipsec_list)) slave_warn(bond_dev, real_dev, "%s: no slave xdo_dev_state_add\n", __func__); - spin_unlock_bh(&bond->ipsec_lock); goto out; } - spin_lock_bh(&bond->ipsec_lock); list_for_each_entry(ipsec, &bond->ipsec_list, list) { + struct net_device *dev = ipsec->xs->xso.real_dev; + + /* If new state is added before ipsec_lock acquired */ + if (dev) { + if (dev == real_dev) + continue; + + dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs); + if (dev->xfrmdev_ops->xdo_dev_state_free) + dev->xfrmdev_ops->xdo_dev_state_free(ipsec->xs); + } + ipsec->xs->xso.real_dev = real_dev; if (real_dev->xfrmdev_ops->xdo_dev_state_add(ipsec->xs, NULL)) { slave_warn(bond_dev, real_dev, "%s: failed to add SA\n", __func__); ipsec->xs->xso.real_dev = NULL; } } - spin_unlock_bh(&bond->ipsec_lock); out: - rcu_read_unlock(); + mutex_unlock(&bond->ipsec_lock); } /** @@ -530,6 +535,8 @@ static void bond_ipsec_del_sa(struct xfrm_state *xs) rcu_read_lock(); bond = netdev_priv(bond_dev); slave = rcu_dereference(bond->curr_active_slave); + real_dev = slave ? slave->dev : NULL; + rcu_read_unlock(); if (!slave) goto out; @@ -537,7 +544,6 @@ static void bond_ipsec_del_sa(struct xfrm_state *xs) if (!xs->xso.real_dev) goto out; - real_dev = slave->dev; WARN_ON(xs->xso.real_dev != real_dev); if (!real_dev->xfrmdev_ops || @@ -549,7 +555,7 @@ static void bond_ipsec_del_sa(struct xfrm_state *xs) real_dev->xfrmdev_ops->xdo_dev_state_delete(xs); out: - spin_lock_bh(&bond->ipsec_lock); + mutex_lock(&bond->ipsec_lock); list_for_each_entry(ipsec, &bond->ipsec_list, list) { if (ipsec->xs == xs) { list_del(&ipsec->list); @@ -557,8 +563,7 @@ static void bond_ipsec_del_sa(struct xfrm_state *xs) break; } } - spin_unlock_bh(&bond->ipsec_lock); - rcu_read_unlock(); + mutex_unlock(&bond->ipsec_lock); } static void bond_ipsec_del_sa_all(struct bonding *bond) @@ -569,14 +574,13 @@ static void bond_ipsec_del_sa_all(struct bonding *bond) struct slave *slave; rcu_read_lock(); - slave = rcu_dereference(bond->curr_active_slave); - if (!slave) { - rcu_read_unlock(); + slave = rtnl_dereference(bond->curr_active_slave); + real_dev = slave ? slave->dev : NULL; + rcu_read_unlock(); + if (!real_dev) return; - } - real_dev = slave->dev; - spin_lock_bh(&bond->ipsec_lock); + mutex_lock(&bond->ipsec_lock); list_for_each_entry(ipsec, &bond->ipsec_list, list) { if (!ipsec->xs->xso.real_dev) continue; @@ -594,8 +598,7 @@ static void bond_ipsec_del_sa_all(struct bonding *bond) } ipsec->xs->xso.real_dev = NULL; } - spin_unlock_bh(&bond->ipsec_lock); - rcu_read_unlock(); + mutex_unlock(&bond->ipsec_lock); } static void bond_ipsec_free_sa(struct xfrm_state *xs) @@ -5902,7 +5905,7 @@ void bond_setup(struct net_device *bond_dev) /* set up xfrm device ops (only supported in active-backup right now) */ bond_dev->xfrmdev_ops = &bond_xfrmdev_ops; INIT_LIST_HEAD(&bond->ipsec_list); - spin_lock_init(&bond->ipsec_lock); + mutex_init(&bond->ipsec_lock); #endif /* CONFIG_XFRM_OFFLOAD */ /* don't acquire bond device's netif_tx_lock when transmitting */ @@ -5951,6 +5954,10 @@ static void bond_uninit(struct net_device *bond_dev) __bond_release_one(bond_dev, slave->dev, true, true); netdev_info(bond_dev, "Released all slaves\n"); +#ifdef CONFIG_XFRM_OFFLOAD + mutex_destroy(&bond->ipsec_lock); +#endif /* CONFIG_XFRM_OFFLOAD */ + bond_set_slave_arr(bond, NULL, NULL); list_del_rcu(&bond->bond_list); diff --git a/include/net/bonding.h b/include/net/bonding.h index b61fb1aa3a56..8bb5f016969f 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -260,7 +260,7 @@ struct bonding { #ifdef CONFIG_XFRM_OFFLOAD struct list_head ipsec_list; /* protecting ipsec_list */ - spinlock_t ipsec_lock; + struct mutex ipsec_lock; #endif /* CONFIG_XFRM_OFFLOAD */ struct bpf_prog *xdp_prog; };