Re: [PATCH] mm: Refactor readahead defines in mm.h

From: Matthew Wilcox
Date: Fri Dec 21 2018 - 09:48:45 EST


On Fri, Dec 21, 2018 at 04:40:53PM +0200, Nikolay Borisov wrote:
> All users of VM_MAX_READAHEAD actually convert it to kbytes and then to
> pages. Define the macro explicitly as (SZ_128K / PAGE_SIZE). This
> simplifies the expression in every filesystem. Also rename the macro to
> VM_READAHEAD_PAGES to properly convey its meaning. Finally remove unused
> VM_MIN_READAHEAD
>
> Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>

Reviewed-by: Matthew Wilcox <willy@xxxxxxxxxxxxx>