linux-kernel - Re: [PATCH] mm/readahead: add a desired folio order for readhead

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Message-ID: <aSB3kcsneAS94DgU@casper.infradead.org>
Date: Fri, 21 Nov 2025 14:30:41 +0000
From: Matthew Wilcox <willy@...radead.org>
To: Jaegeuk Kim <jaegeuk@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
	David Hildenbrand <david@...hat.com>
Subject: Re: [PATCH] mm/readahead: add a desired folio order for readhead

On Fri, Nov 21, 2025 at 01:48:11AM +0000, Jaegeuk Kim wrote:
> This patch adds a desired folio order in file_ra_state in order to get
> non-zero-order allocation for readahead.

Why?  Does it not ramp up quickly enough for you?

I see a lot of patches from you that say what the patch does but very
little about why.  Please explain yourself more.