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2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/net/smc/smc_core.c
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@@ -912,7 +912,7 @@
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 	if (lgr->terminating)
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 		return;	/* lgr already terminating */
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 	/* cancel free_work sync, will terminate when lgr->freeing is set */
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-	cancel_delayed_work_sync(&lgr->free_work);
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+	cancel_delayed_work(&lgr->free_work);
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 	lgr->terminating = 1;
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 	/* kill remaining link group connections */
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@@ -1101,6 +1101,7 @@
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 {
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 	struct smc_link_group *lgr, *n;
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+	spin_lock_bh(&smc_lgr_list.lock);
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 	list_for_each_entry_safe(lgr, n, &smc_lgr_list.list, list) {
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 		struct smc_link *link;
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@@ -1115,6 +1116,7 @@
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 		if (link)
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 			smc_llc_add_link_local(link);
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 	}
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+	spin_unlock_bh(&smc_lgr_list.lock);
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 }
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 /* link is down - switch connections to alternate link,