btrfs: add cond_resched to btrfs_qgroup_trace_leaf_items

On an uncontended system, we can end up hitting soft lockups while doing replace_path. At the core, and frequently called is btrfs_qgroup_trace_leaf_items, so it makes sense to add a cond_resched there. Signed-off-by: Jeff Mahoney <[email protected]> Reviewed-by: David Sterba <[email protected]> Signed-off-by: David Sterba <[email protected]>
laijs · Jun 21, 2017 · cddf3b2 · cddf3b2
1 parent 7dfb8be
commit cddf3b2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
@@ -1559,6 +1559,7 @@ int btrfs_qgroup_trace_leaf_items(struct btrfs_trans_handle *trans,
 		if (ret)
 			return ret;
 	}
+	cond_resched();
 	return 0;
 }