Re: memory leaks from xfs_rw_bdev()

From: Qian Cai
Date: Tue Jul 09 2019 - 14:31:26 EST


On Mon, 2019-07-08 at 23:35 +0200, Christoph Hellwig wrote:
> We actually have a discussion on that in another thread, but if you
> can easily reproduce the issue, can you test the patch below?
>
> diff --git a/fs/xfs/xfs_bio_io.c b/fs/xfs/xfs_bio_io.c
> index 757c1d9293eb..e2148f2d5d6b 100644
> --- a/fs/xfs/xfs_bio_io.c
> +++ b/fs/xfs/xfs_bio_io.c
> @@ -43,7 +43,7 @@ xfs_rw_bdev(
> Â bio_copy_dev(bio, prev);
> Â bio->bi_iter.bi_sector = bio_end_sector(prev);
> Â bio->bi_opf = prev->bi_opf;
> - bio_chain(bio, prev);
> + bio_chain(prev, bio);
> Â
> Â submit_bio(prev);
> Â }

Yes, it works fine.