Re: [PATCH v3 04/11] readahead: rework loop in page_cache_ra_unbounded()

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On Wed, Mar 13, 2024 at 06:02:46PM +0100, Pankaj Raghav (Samsung) wrote:
> @@ -239,8 +239,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
>  			 * not worth getting one just for that.
>  			 */
>  			read_pages(ractl);
> -			ractl->_index++;
> -			i = ractl->_index + ractl->_nr_pages - index - 1;
> +			ractl->_index += folio_nr_pages(folio);
> +			i = ractl->_index + ractl->_nr_pages - index;
>  			continue;
>  		}
>  
> @@ -252,13 +252,14 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
>  			folio_put(folio);
>  			read_pages(ractl);
>  			ractl->_index++;
> -			i = ractl->_index + ractl->_nr_pages - index - 1;
> +			i = ractl->_index + ractl->_nr_pages - index;
>  			continue;
>  		}

You changed index++ in the first hunk, but not the second hunk.  Is that
intentional?




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