linux-kernel - Re: [PATCH v4 07/11] iomap: fix iomap_dio

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Date: Fri, 26 Apr 2024 22:12:01 -0700
From: Christoph Hellwig <hch@...radead.org>
To: "Pankaj Raghav (Samsung)" <kernel@...kajraghav.com>
Cc: Christoph Hellwig <hch@...radead.org>, willy@...radead.org,
	djwong@...nel.org, brauner@...nel.org, david@...morbit.com,
	chandan.babu@...cle.com, akpm@...ux-foundation.org,
	linux-fsdevel@...r.kernel.org, hare@...e.de,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-xfs@...r.kernel.org, mcgrof@...nel.org, gost.dev@...sung.com,
	p.raghav@...sung.com
Subject: Re: [PATCH v4 07/11] iomap: fix iomap_dio_zero() for fs bs > system
 page size

On Fri, Apr 26, 2024 at 11:43:01AM +0000, Pankaj Raghav (Samsung) wrote:
> Because allocating it during runtime will defeat the purpose.

Well, what runtime?  Either way it seems like we have the infrastructure
now based on the comment from willy.

> In anycase, I would like to pursue huge_zero_page folio separately
> from this series. Also iomap_dio_zero() only pads a fs block with
> zeroes, which should never be > 64k for XFS.

Only if you are limited to 64k block size.