Re: [PATCH] mm: memcg: fix unit conversion for K() macro in OOM log

[Muchun Song]

> On Dec 17, 2025, at 05:20, Shakeel Butt <shakeel.butt@xxxxxxxxx> wrote:
> 
> The commit bc8e51c05ad5 ("mm: memcg: dump memcg protection info on oom
> or alloc failures") added functionality to dump memcg protections on OOM
> or allocation failures. It uses K() macro to dump the information and
> passes bytes to the macro. However the macro take number of pages
> instead of bytes. It is defined as:
> 
> #define K(x) ((x) << (PAGE_SHIFT-10))
> 
> Let's fix this.
> 
> Signed-off-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>
> Reported-by: Chris Mason <clm@xxxxxx>
> Fixes: bc8e51c05ad5 ("mm: memcg: dump memcg protection info on oom or alloc failures")

Reviewed-by: Muchun Song <muchun.song@xxxxxxxxx>

Thanks.