Re: [PATCH v8 06/10] iomap: fix iomap_dio_zero() for fs bs > system page size

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On Tue, Jul 02, 2024 at 02:01:23PM +0000, Pankaj Raghav (Samsung) wrote:
+static int iomap_dio_zero(const struct iomap_iter *iter, struct iomap_dio *dio,
>                 loff_t pos, unsigned len)
>  {
>         struct inode *inode = file_inode(dio->iocb->ki_filp);
>         struct bio *bio;
>  
> +       if (!len)
> +               return 0;
>         /*
>          * Max block size supported is 64k
>          */
> -       WARN_ON_ONCE(len > ZERO_PAGE_64K_SIZE);
> +       if (len > ZERO_PAGE_64K_SIZE)
> +               return -EINVAL;

The should probably be both WARN_ON_ONCE in addition to the error
return (and ZERO_PAGE_64K_SIZE really needs to go away..)

> +                       ret = iomap_dio_zero(iter, dio, pos, fs_block_size - pad);

Overly lone line here.

Otherwise this looks good.





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