Re: [PATCH v2 0/9] fallocate: introduce FALLOC_FL_WRITE_ZEROES flag

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To: Zhang Yi <yi.zhang@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH v2 0/9] fallocate: introduce FALLOC_FL_WRITE_ZEROES flag
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Mon, 23 Jun 2025 11:08:39 -0400
Cc: linux-fsdevel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, hch@xxxxxx, tytso@xxxxxxx, djwong@xxxxxxxxxx, john.g.garry@xxxxxxxxxx, bmarzins@xxxxxxxxxx, chaitanyak@xxxxxxxxxx, shinichiro.kawasaki@xxxxxxx, brauner@xxxxxxxxxx, martin.petersen@xxxxxxxxxx, yi.zhang@xxxxxxxxxx, chengzhihao1@xxxxxxxxxx, yukuai3@xxxxxxxxxx, yangerkun@xxxxxxxxxx
In-reply-to: <20250619111806.3546162-1-yi.zhang@huaweicloud.com> (Zhang Yi's message of "Thu, 19 Jun 2025 19:17:57 +0800")
Organization: Oracle Corporation

Zhang,

> This series implements the BLK_FEAT_WRITE_ZEROES_UNMAP feature and
> BLK_FLAG_WRITE_ZEROES_UNMAP_DISABLED flag for SCSI, NVMe and
> device-mapper drivers, and add the FALLOC_FL_WRITE_ZEROES and
> STATX_ATTR_WRITE_ZEROES_UNMAP support for ext4 and raw bdev devices.
> Any comments are welcome.

This looks OK to me.

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen

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References:
- [PATCH v2 0/9] fallocate: introduce FALLOC_FL_WRITE_ZEROES flag
  - From: Zhang Yi

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