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fd57770dd1
When the clcsock is already released using sock_release() and a pending smc_listen_work accesses the clcsock than that will fail. Solve this by canceling and waiting for the work to complete first. Because the work holds the sock_lock it must make sure that the lock is not hold before the new helper smc_clcsock_release() is invoked. And before the smc_listen_work starts working check if the parent listen socket is still valid, otherwise stop the work early. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
29 lines
658 B
C
29 lines
658 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Shared Memory Communications over RDMA (SMC-R) and RoCE
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*
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* Socket Closing
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*
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* Copyright IBM Corp. 2016
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*
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* Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
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*/
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#ifndef SMC_CLOSE_H
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#define SMC_CLOSE_H
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#include <linux/workqueue.h>
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#include "smc.h"
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#define SMC_MAX_STREAM_WAIT_TIMEOUT (2 * HZ)
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#define SMC_CLOSE_SOCK_PUT_DELAY HZ
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void smc_close_wake_tx_prepared(struct smc_sock *smc);
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int smc_close_active(struct smc_sock *smc);
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int smc_close_shutdown_write(struct smc_sock *smc);
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void smc_close_init(struct smc_sock *smc);
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void smc_clcsock_release(struct smc_sock *smc);
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#endif /* SMC_CLOSE_H */
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