Re: [PATCHv2 5/6] zloop: set dma_alignment from the backing files for direct I/O

[Christoph Hellwig]

On Mon, Jun 22, 2026 at 10:42:40AM -0700, Keith Busch wrote:
>  {
>       struct block_device *sb_bdev = 
> zone->file->f_mapping->host->i_sb->s_bdev;
>       struct kstat st;
> +     bool have_dioalign = !vfs_getattr(&zone->file->f_path, &st,
> +                                       STATX_DIOALIGN, 0) &&
> +                          (st.result_mask & STATX_DIOALIGN);

This is getting a bit crazy for an assignment :)

Maybe refactor this along the lines of the loop.c code?

> +     /* Direct I/O hands the request's pages to the backing files unchanged. 
> */

Overly long line.