Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback

[platform/adaptation/renesas_rcar/renesas_kernel.git] / mm / backing-dev.c

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index ddd0345..d6edf8d 100644 (file)
--- 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);