diff options
Diffstat (limited to 'block/blk-mq-cpu.c')
| -rw-r--r-- | block/blk-mq-cpu.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/block/blk-mq-cpu.c b/block/blk-mq-cpu.c index 136ef8643bba..d2c253f71b86 100644 --- a/block/blk-mq-cpu.c +++ b/block/blk-mq-cpu.c @@ -18,14 +18,18 @@ static int blk_mq_main_cpu_notify(struct notifier_block *self, { unsigned int cpu = (unsigned long) hcpu; struct blk_mq_cpu_notifier *notify; + int ret = NOTIFY_OK; raw_spin_lock(&blk_mq_cpu_notify_lock); - list_for_each_entry(notify, &blk_mq_cpu_notify_list, list) - notify->notify(notify->data, action, cpu); + list_for_each_entry(notify, &blk_mq_cpu_notify_list, list) { + ret = notify->notify(notify->data, action, cpu); + if (ret != NOTIFY_OK) + break; + } raw_spin_unlock(&blk_mq_cpu_notify_lock); - return NOTIFY_OK; + return ret; } void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier) @@ -45,7 +49,7 @@ void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier) } void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier, - void (*fn)(void *, unsigned long, unsigned int), + int (*fn)(void *, unsigned long, unsigned int), void *data) { notifier->notify = fn; |