Re: [5.15 REGRESSION] iomap: Fix inline extent handling in iomap_readpage

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On Wed, Nov 10, 2021 at 12:38:42PM +0100, Andreas Gruenbacher wrote:
> +	if (iomap->type == IOMAP_INLINE) {
> +		/*
> +		 * The filesystem sets iomap->length to the size of the inline
> +		 * data.  We're at the end of the file, so we know that the
> +		 * rest of the page needs to be zeroed out.
> +		 */
> +		iomap->length = iomap_read_inline_data(iter, page);
> +		return iomap->length;

You can't just change iomap->length here.  Fix the file system to
return the right length, please.



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