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Date: Mon, 10 Aug 2026 13:20:53 -0600
From: Keith Busch <kbusch@kernel.org>
To: Yehyeong Lee <yhlee@isslab.korea.ac.kr>
Cc: axboe@kernel.dk, hch@lst.de, sagi@grimberg.me, eduard@hasenleithner.at,
	linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH] nvme: zero the discard fallback page
Message-ID: <anoklR7ptrDQwCtn@kbusch-mbp>
References: <20260730113624.1605213-1-yhlee@isslab.korea.ac.kr>
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In-Reply-To: <20260730113624.1605213-1-yhlee@isslab.korea.ac.kr>

On Thu, Jul 30, 2026 at 08:36:24PM +0900, Yehyeong Lee wrote:
> nvme_setup_discard() always maps sizeof(struct nvme_dsm_range) *
> NVME_DSM_MAX_RANGES = 4096 bytes as the DSM payload however many ranges
> the command declares, because some devices ignore the 'Number of Ranges'
> field - the Fixes: commit records two that read past the declared ranges.
> A single-range discard fills only the first 16 bytes.

Thanks, applied to nvme-7.3.