Re: [syzbot] [mm?] WARNING in mas_nomem

[Jason Gunthorpe]

On Thu, Aug 06, 2026 at 10:29:27AM -0400, Liam R. Howlett wrote:

> @@ -5609,8 +5612,7 @@ void *mas_store(struct ma_state *mas, void *entry)
>  		goto store;
>  
>  	mas_alloc_nodes(mas, GFP_NOWAIT);
> -	if (mas_is_err(mas))
> -		return NULL;
> +	mas_nomem(mas, GFP_KERNEL | __GFP_NOFAIL);

It still feels really weird to ignore the return code from mas_nomem..

 void mas_nomem_nofail() 

? and maybe it can have a WARN_ON

Jason