net/smc: guarantee removal of link groups in reboot
When rebooting it should be guaranteed all link groups are cleaned up and freed. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -14,6 +14,7 @@
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#include <linux/random.h>
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#include <linux/workqueue.h>
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#include <linux/wait.h>
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#include <linux/reboot.h>
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#include <net/tcp.h>
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#include <net/sock.h>
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#include <rdma/ib_verbs.h>
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@ -1282,14 +1283,27 @@ static void smc_lgrs_shutdown(void)
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spin_unlock(&smcd_dev_list.lock);
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}
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static int smc_core_reboot_event(struct notifier_block *this,
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unsigned long event, void *ptr)
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{
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smc_lgrs_shutdown();
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return 0;
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}
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static struct notifier_block smc_reboot_notifier = {
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.notifier_call = smc_core_reboot_event,
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};
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int __init smc_core_init(void)
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{
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atomic_set(&lgr_cnt, 0);
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return 0;
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return register_reboot_notifier(&smc_reboot_notifier);
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}
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/* Called (from smc_exit) when module is removed */
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void smc_core_exit(void)
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{
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unregister_reboot_notifier(&smc_reboot_notifier);
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smc_lgrs_shutdown();
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}
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