linux-kernel - Re: [RFC PATCH v2 2/8] nvme: set BLK_FEAT_WRITE_ZEROES

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Message-ID: <7fd947c4-7939-4ccd-8868-3fa419571a78@huaweicloud.com>
Date: Fri, 7 Feb 2025 20:24:27 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: Christoph Hellwig <hch@....de>
Cc: linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
 linux-block@...r.kernel.org, dm-devel@...ts.linux.dev,
 linux-nvme@...ts.infradead.org, linux-scsi@...r.kernel.org,
 linux-kernel@...r.kernel.org, tytso@....edu, djwong@...nel.org,
 yi.zhang@...wei.com, chengzhihao1@...wei.com, yukuai3@...wei.com,
 yangerkun@...wei.com
Subject: Re: [RFC PATCH v2 2/8] nvme: set BLK_FEAT_WRITE_ZEROES_UNMAP if
 device supports DEAC bit

On 2025/1/28 14:46, Christoph Hellwig wrote:
> I think you also need to add BLK_FEAT_WRITE_ZEROES_UNMAP to the list
> of features supported by the nvme-mpath stacking driver in
> nvme_mpath_alloc_disk, so that this gets propagated to multipathed
> devices.
> 
> Otherwise this looks good to me.

Ha, thanks for pointing this out, I missed this case, will add.

Thanks,
Yi.