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author | Ursula Braun <ubraun@linux.ibm.com> | 2019-11-16 17:47:30 +0100 |
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committer | David S. Miller <davem@davemloft.net> | 2019-11-16 12:26:49 -0800 |
commit | a33a803cfe64309d330540ae4a8df17158bcb6ea (patch) | |
tree | a718141e14756f70734a5dcb5941f0d3c052785a | |
parent | 6dabd405451f35c905dfadb6a06f5c981074fc14 (diff) | |
download | linux-stable-a33a803cfe64309d330540ae4a8df17158bcb6ea.tar.gz linux-stable-a33a803cfe64309d330540ae4a8df17158bcb6ea.tar.bz2 linux-stable-a33a803cfe64309d330540ae4a8df17158bcb6ea.zip |
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>
-rw-r--r-- | net/smc/smc_core.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index cf34b9d96595..bb92c7c6214c 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -14,6 +14,7 @@ #include <linux/random.h> #include <linux/workqueue.h> #include <linux/wait.h> +#include <linux/reboot.h> #include <net/tcp.h> #include <net/sock.h> #include <rdma/ib_verbs.h> @@ -1282,14 +1283,27 @@ static void smc_lgrs_shutdown(void) spin_unlock(&smcd_dev_list.lock); } +static int smc_core_reboot_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + smc_lgrs_shutdown(); + + return 0; +} + +static struct notifier_block smc_reboot_notifier = { + .notifier_call = smc_core_reboot_event, +}; + int __init smc_core_init(void) { atomic_set(&lgr_cnt, 0); - return 0; + return register_reboot_notifier(&smc_reboot_notifier); } /* Called (from smc_exit) when module is removed */ void smc_core_exit(void) { + unregister_reboot_notifier(&smc_reboot_notifier); smc_lgrs_shutdown(); } |