[PATCH v8 14/25] mm: Document why we don't set PageReadahead

[Christoph Hellwig]

On Tue, Feb 25, 2020 at 01:48:27PM -0800, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)" <willy at infradead.org>
> 
> If the page is already in cache, we don't set PageReadahead on it.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy at infradead.org>

Looks good,

Reviewed-by: Christoph Hellwig <hch at lst.de>