mirror of https://gitee.com/openkylin/linux.git
net/smc: free link group without pending free_work only
Make sure there is no pending or running free_work worker for the link group when freeing the link group. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1477,6 +1477,7 @@ static void __exit smc_exit(void)
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spin_unlock_bh(&smc_lgr_list.lock);
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list_for_each_entry_safe(lgr, lg, &lgr_freeing_list, list) {
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list_del_init(&lgr->list);
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cancel_delayed_work_sync(&lgr->free_work);
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smc_lgr_free(lgr); /* free link group */
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}
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static_branch_disable(&tcp_have_smc);
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@ -140,7 +140,8 @@ static void smc_lgr_free_work(struct work_struct *work)
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list_del_init(&lgr->list); /* remove from smc_lgr_list */
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free:
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spin_unlock_bh(&smc_lgr_list.lock);
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smc_lgr_free(lgr);
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if (!delayed_work_pending(&lgr->free_work))
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smc_lgr_free(lgr);
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}
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/* create a new SMC link group */
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