Date: Mon, 28 Sep 2020 11:48:20 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r366221 - stable/11/sys/netgraph Message-ID: <202009281148.08SBmKFv051644@repo.freebsd.org>
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Author: markj Date: Mon Sep 28 11:48:20 2020 New Revision: 366221 URL: https://svnweb.freebsd.org/changeset/base/366221 Log: MFC r366167: ng_l2tp: Fix callout synchronization in the rexmit timeout handler PR: 241133 Modified: stable/11/sys/netgraph/ng_l2tp.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/netgraph/ng_l2tp.c ============================================================================== --- stable/11/sys/netgraph/ng_l2tp.c Mon Sep 28 11:46:03 2020 (r366220) +++ stable/11/sys/netgraph/ng_l2tp.c Mon Sep 28 11:48:20 2020 (r366221) @@ -1454,15 +1454,17 @@ ng_l2tp_seq_rack_timeout(node_p node, hook_p hook, voi struct mbuf *m; u_int delay; - /* Make sure callout is still active before doing anything */ - if (callout_pending(&seq->rack_timer) || - (!callout_active(&seq->rack_timer))) - return; - /* Sanity check */ L2TP_SEQ_CHECK(seq); mtx_lock(&seq->mtx); + /* Make sure callout is still active before doing anything */ + if (callout_pending(&seq->rack_timer) || + !callout_active(&seq->rack_timer)) { + mtx_unlock(&seq->mtx); + return; + } + priv->stats.xmitRetransmits++; /* Have we reached the retransmit limit? If so, notify owner. */
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