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-rw-r--r--mm/backing-dev.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index ddd0345e2e6d..d6edf8d14f9c 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -513,7 +513,7 @@ static void bdi_remove_from_list(struct backing_dev_info *bdi)
list_del_rcu(&bdi->bdi_list);
spin_unlock_bh(&bdi_lock);
- synchronize_rcu();
+ synchronize_rcu_expedited();
}
int bdi_register(struct backing_dev_info *bdi, struct device *parent,
@@ -614,6 +614,7 @@ static void bdi_prune_sb(struct backing_dev_info *bdi)
void bdi_unregister(struct backing_dev_info *bdi)
{
if (bdi->dev) {
+ bdi_set_min_ratio(bdi, 0);
trace_writeback_bdi_unregister(bdi);
bdi_prune_sb(bdi);
del_timer_sync(&bdi->wb.wakeup_timer);
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