Re: [PATCH v3 1/2] block: disallow Persistent Reservation on partitions

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To: Jingbo Xu <jefflexu@xxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH v3 1/2] block: disallow Persistent Reservation on partitions
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 13 Jun 2023 15:49:15 +0200
Cc: axboe@xxxxxxxxx, hch@xxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, tianjia.zhang@xxxxxxxxxxxxxxxxx, xiang@xxxxxxxxxx, casey@xxxxxxxxxxxxxxxx
In-reply-to: <20230613084008.93795-2-jefflexu@linux.alibaba.com>
References: <20230613084008.93795-1-jefflexu@linux.alibaba.com> <20230613084008.93795-2-jefflexu@linux.alibaba.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Tue, Jun 13, 2023 at 04:40:07PM +0800, Jingbo Xu wrote:
> Refuse Persistent Reservation operations on partitions as reservation
> on partitions doesn't make sense.
> 
> Besides, introduce blkdev_pr_allowed() helper, where more policies could
> be placed here later.

Looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

References:
- [PATCH v3 0/2] block: fine-granular CAP_SYS_ADMIN for Persistent Reservation ioctl
  - From: Jingbo Xu
- [PATCH v3 1/2] block: disallow Persistent Reservation on partitions
  - From: Jingbo Xu

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