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mpath_disk *mpath_disk) >>   { >>       struct mpath_head *mpath_head = mpath_disk->mpath_head; >> @@ -793,6 +868,8 @@ struct mpath_head *mpath_alloc_head(void) >>       mutex_init(&mpath_head->lock); >>       kref_init(&mpath_head->ref); >> +    mpath_head->delayed_removal_secs = 0; >> + >>       INIT_WORK(&mpath_head->requeue_work, mpath_requeue_work); >>       spin_lock_init(&mpath_head->requeue_lock); >>       bio_list_init(&mpath_head->requeue_list); > > I think we also need to initialize ->drv_module here. Yes, thanks!