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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Florian Westphal <fw@strlen.de>,
	Steffen Klassert <steffen.klassert@secunet.com>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.18 10/33] xfrm: policy: use hlist rcu variants on insert
Date: Tue, 30 Oct 2018 09:26:34 -0400	[thread overview]
Message-ID: <20181030132657.217970-10-sashal@kernel.org> (raw)
In-Reply-To: <20181030132657.217970-1-sashal@kernel.org>

From: Florian Westphal <fw@strlen.de>

[ Upstream commit 9dffff200fd178f11dd50eb1fd8ccd0650c9284e ]

bydst table/list lookups use rcu, so insertions must use rcu versions.

Fixes: a7c44247f704e ("xfrm: policy: make xfrm_policy_lookup_bytype lockless")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_policy.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index a94983e03a8b..85097c4dc10c 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -625,9 +625,9 @@ static void xfrm_hash_rebuild(struct work_struct *work)
 				break;
 		}
 		if (newpos)
-			hlist_add_behind(&policy->bydst, newpos);
+			hlist_add_behind_rcu(&policy->bydst, newpos);
 		else
-			hlist_add_head(&policy->bydst, chain);
+			hlist_add_head_rcu(&policy->bydst, chain);
 	}
 
 	spin_unlock_bh(&net->xfrm.xfrm_policy_lock);
@@ -766,9 +766,9 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
 			break;
 	}
 	if (newpos)
-		hlist_add_behind(&policy->bydst, newpos);
+		hlist_add_behind_rcu(&policy->bydst, newpos);
 	else
-		hlist_add_head(&policy->bydst, chain);
+		hlist_add_head_rcu(&policy->bydst, chain);
 	__xfrm_policy_link(policy, dir);
 
 	/* After previous checking, family can either be AF_INET or AF_INET6 */
-- 
2.17.1


  parent reply	other threads:[~2018-10-30 13:27 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-30 13:26 [PATCH AUTOSEL 4.18 01/33] drm: fix use of freed memory in drm_mode_setcrtc Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 02/33] bpf: do not blindly change rlimit in reuseport net selftest Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 03/33] nvme: remove ns sibling before clearing path Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 04/33] Revert "perf tools: Fix PMU term format max value calculation" Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 05/33] selftests: usbip: add wait after attach and before checking port status Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 06/33] net/mlx5: Fix memory leak when setting fpga ipsec caps Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 07/33] net/mlx5: Take only bit 24-26 of wqe.pftype_wq for page fault type Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 08/33] net/mlx5: WQ, fixes for fragmented WQ buffers API Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 09/33] xsk: do not call synchronize_net() under RCU read lock Sasha Levin
2018-10-30 13:26 ` Sasha Levin [this message]
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 11/33] perf vendor events intel: Fix wrong filter_band* values for uncore events Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 12/33] sparc: Fix single-pcr perf event counter management Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 13/33] sparc: Throttle perf events properly Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 14/33] sparc64: Make proc_id signed Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 15/33] r8169: Enable MSI-X on RTL8106e Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 16/33] net: bcmgenet: Poll internal PHY for GENETv5 Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 17/33] net: fec: don't dump RX FIFO register when not available Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 18/33] nfp: flower: fix pedit set actions for multiple partial masks Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 19/33] nfp: flower: use offsets provided by pedit instead of index for ipv6 Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 20/33] sched/fair: Fix the min_vruntime update logic in dequeue_entity() Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 21/33] perf evsel: Store ids for events with their own cpus perf_event__synthesize_event_update_cpus Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 22/33] perf tools: Fix use of alternatives to find JDIR Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 23/33] perf cpu_map: Align cpu map synthesized events properly Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 24/33] perf report: Don't crash on invalid inline debug information Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 25/33] x86/fpu: Remove second definition of fpu in __fpu__restore_sig() Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 26/33] net: qla3xxx: Remove overflowing shift statement Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 27/33] r8169: re-enable MSI-X on RTL8168g Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 28/33] virtio_net: avoid using netif_tx_disable() for serializing tx routine Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 29/33] drm: Get ref on CRTC commit object when waiting for flip_done Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 30/33] r8169: fix NAPI handling under high load Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 31/33] selftests: ftrace: Add synthetic event syntax testcase Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 32/33] net: fix pskb_trim_rcsum_slow() with odd trim offset Sasha Levin
2018-10-30 13:26 ` [PATCH AUTOSEL 4.18 33/33] i2c: rcar: cleanup DMA for all kinds of failure Sasha Levin

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