linux-kernel - Re: [PATCH] mm/vmalloc: fix mischeck pfn valid in vmap

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Message-ID: <20250318064805.GA16121@lst.de>
Date: Tue, 18 Mar 2025 07:48:05 +0100
From: Christoph Hellwig <hch@....de>
To: Huan Yang <link@...o.com>
Cc: hch@....de, akpm@...ux-foundation.org, bingbu.cao@...ux.intel.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	lorenzo.stoakes@...cle.com, opensource.kernel@...o.com,
	rppt@...nel.org, ryan.roberts@....com, urezki@...il.com,
	ziy@...dia.com
Subject: Re: [PATCH] mm/vmalloc: fix mischeck pfn valid in vmap_pfns

So you want a folio based version of vmap.  Please work on that instead
of doing crazy hacks using vmap_pfns which is just for memory not
historically backed by pages and now folios.