linux-kernel - Re: CONFIG_PT

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Message-ID: <15fe7b83-0a3c-47e1-9b32-7db7b6a25c19@redhat.com>
Date: Thu, 27 Feb 2025 10:54:15 +0100
From: David Hildenbrand <david@...hat.com>
To: Johannes Weiner <hannes@...xchg.org>,
 Qi Zheng <zhengqi.arch@...edance.com>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: CONFIG_PT_RECLAIM

On 26.02.25 19:30, Johannes Weiner wrote:
> Does PT_RECLAIM need to be configurable by the user?
> 
> Why not always try to free the page tables if the arch supports it?

I recall that the reasoning was that it might negatively affect some 
workloads so we'd be a bit careful first.

I'd be happy if we'd just unconditionally enable it.

-- 
Cheers,

David / dhildenb