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-rw-r--r--fs/btrfs/super.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 38740cc2919f..12d7d3be7cd4 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1978,6 +1978,16 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
wait_on_bit(&fs_info->flags, BTRFS_FS_CLEANER_RUNNING,
TASK_UNINTERRUPTIBLE);
+ /*
+ * We've set the superblock to RO mode, so we might have made
+ * the cleaner task sleep without running all pending delayed
+ * iputs. Go through all the delayed iputs here, so that if an
+ * unmount happens without remounting RW we don't end up at
+ * finishing close_ctree() with a non-empty list of delayed
+ * iputs.
+ */
+ btrfs_run_delayed_iputs(fs_info);
+
btrfs_dev_replace_suspend_for_unmount(fs_info);
btrfs_scrub_cancel(fs_info);
btrfs_pause_balance(fs_info);