Re: [RFC PATCH] mm: reduce noise in show_mem for lowmem allocations

From: Mel Gorman
Date: Wed Aug 24 2022 - 09:35:10 EST


On Tue, Aug 23, 2022 at 11:22:30AM +0200, Michal Hocko wrote:
> Hi,
> while discussing early DMA pool pre-allocation failure with Christoph
> [1] I have realized that the allocation failure warning is rather noisy
> for constrained allocations like GFP_DMA{32}. Those zones are usually
> not populated on all nodes very often as their memory ranges are
> constrained.
>
> This is an attempt to reduce the ballast that doesn't provide any
> relevant information for those allocation failures investigation.
> Please note that I have only compile tested it (in my default config
> setup) and I am throwing it mostly to see what people think about it.
>
> [1] http://lkml.kernel.org/r/20220817060647.1032426-1-hch@xxxxxx

No objections.

--
Mel Gorman
SUSE Labs