Re: [PATCH] mm: page_owner: use kstrtobool() to parse bool option

[Matthew Wilcox]

On Thu, Apr 01, 2021 at 10:09:09PM +0100, Sergei Trofimovich wrote:
> I tried to use page_owner=1 for a while noticed too late it had
> no effect as opposed to similar init_on_alloc=1 (these work).
> 
> Let's make them consistent.
> 
> The change decreses binary size slightly:
>    text    data     bss     dec     hex filename
>   12408     321      17   12746    31ca mm/page_owner.o.before
>   12320     321      17   12658    3172 mm/page_owner.o.after
> 
> CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> CC: linux-mm@xxxxxxxxx
> Signed-off-by: Sergei Trofimovich <slyfox@xxxxxxxxxx>

Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>

Seems to me there are a few other places that could benefit from this.

kmemleak_boot_config()
early_kasan_flag()
early_kasan_flag_stacktrace()
nonx32_setup()

maybe others?  grep is our friend.