diff options
Diffstat (limited to 'drivers/char/ipmi/ipmi_msghandler.c')
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index bd3c9fb029fa..ad2e6d55d4a5 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -220,6 +220,8 @@ struct ipmi_user { struct work_struct remove_work; }; +static struct workqueue_struct *remove_work_wq; + static struct ipmi_user *acquire_ipmi_user(struct ipmi_user *user, int *index) __acquires(user->release_barrier) { @@ -1286,7 +1288,7 @@ static void free_user(struct kref *ref) struct ipmi_user *user = container_of(ref, struct ipmi_user, refcount); /* SRCU cleanup must happen in task context. */ - schedule_work(&user->remove_work); + queue_work(remove_work_wq, &user->remove_work); } static void _ipmi_destroy_user(struct ipmi_user *user) @@ -2936,7 +2938,7 @@ cleanup_bmc_device(struct kref *ref) * with removing the device attributes while reading a device * attribute. */ - schedule_work(&bmc->remove_work); + queue_work(remove_work_wq, &bmc->remove_work); } /* @@ -5154,7 +5156,16 @@ static int ipmi_init_msghandler(void) if (initialized) goto out; - init_srcu_struct(&ipmi_interfaces_srcu); + rv = init_srcu_struct(&ipmi_interfaces_srcu); + if (rv) + goto out; + + remove_work_wq = create_singlethread_workqueue("ipmi-msghandler-remove-wq"); + if (!remove_work_wq) { + pr_err("unable to create ipmi-msghandler-remove-wq workqueue"); + rv = -ENOMEM; + goto out_wq; + } timer_setup(&ipmi_timer, ipmi_timeout, 0); mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES); @@ -5163,6 +5174,9 @@ static int ipmi_init_msghandler(void) initialized = true; +out_wq: + if (rv) + cleanup_srcu_struct(&ipmi_interfaces_srcu); out: mutex_unlock(&ipmi_interfaces_mutex); return rv; @@ -5186,6 +5200,8 @@ static void __exit cleanup_ipmi(void) int count; if (initialized) { + destroy_workqueue(remove_work_wq); + atomic_notifier_chain_unregister(&panic_notifier_list, &panic_block); |