diff options
Diffstat (limited to 'mm/backing-dev.c')
| -rw-r--r-- | mm/backing-dev.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index a53b9360b72e..7da9727fcdf3 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -263,7 +263,7 @@ static ssize_t min_bytes_store(struct device *dev, return ret; } -DEVICE_ATTR_RW(min_bytes); +static DEVICE_ATTR_RW(min_bytes); static ssize_t max_bytes_show(struct device *dev, struct device_attribute *attr, @@ -291,7 +291,7 @@ static ssize_t max_bytes_store(struct device *dev, return ret; } -DEVICE_ATTR_RW(max_bytes); +static DEVICE_ATTR_RW(max_bytes); static ssize_t stable_pages_required_show(struct device *dev, struct device_attribute *attr, @@ -347,7 +347,7 @@ ATTRIBUTE_GROUPS(bdi_dev); static __init int bdi_class_init(void) { - bdi_class = class_create(THIS_MODULE, "bdi"); + bdi_class = class_create("bdi"); if (IS_ERR(bdi_class)) return PTR_ERR(bdi_class); @@ -507,6 +507,15 @@ static LIST_HEAD(offline_cgwbs); static void cleanup_offline_cgwbs_workfn(struct work_struct *work); static DECLARE_WORK(cleanup_offline_cgwbs_work, cleanup_offline_cgwbs_workfn); +static void cgwb_free_rcu(struct rcu_head *rcu_head) +{ + struct bdi_writeback *wb = container_of(rcu_head, + struct bdi_writeback, rcu); + + percpu_ref_exit(&wb->refcnt); + kfree(wb); +} + static void cgwb_release_workfn(struct work_struct *work) { struct bdi_writeback *wb = container_of(work, struct bdi_writeback, @@ -529,11 +538,10 @@ static void cgwb_release_workfn(struct work_struct *work) list_del(&wb->offline_node); spin_unlock_irq(&cgwb_lock); - percpu_ref_exit(&wb->refcnt); wb_exit(wb); bdi_put(bdi); WARN_ON_ONCE(!list_empty(&wb->b_attached)); - kfree_rcu(wb, rcu); + call_rcu(&wb->rcu, cgwb_free_rcu); } static void cgwb_release(struct percpu_ref *refcnt) |