linux-kernel - Re: [PATCH v3 0/2] block: fine-granular CAP_SYS

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Date:   Mon, 19 Jun 2023 15:16:03 +0800
From:   Jingbo Xu <jefflexu@...ux.alibaba.com>
To:     axboe@...nel.dk, hch@....de, linux-block@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, tianjia.zhang@...ux.alibaba.com,
        xiang@...nel.org, casey@...aufler-ca.com
Subject: Re: [PATCH v3 0/2] block: fine-granular CAP_SYS_ADMIN for Persistent
 Reservation ioctl

Hi, Jens,

Would do you think of this series?


On 6/13/23 4:40 PM, Jingbo Xu wrote:
> changes since v2:
> - patch 1: disallow reservations on partitions entirely and make it into
>   a separate patch (hch)
> - patch 2: rebase to hch's series of converting fmode_t to blk_mode_t
>   and execute permission check upon blk_mode_t (hch)
> 
> changes since RFC:
> - only allow unprivileged reservations if the file descriptor is open
>   for write (Christoph Hellwig)
> - refuse the unprivileged reservations on partitions (Christoph Hellwig)
>   (maybe this checking shall also be done when CAP_SYS_ADMIN is set?)
> 
> 
> RFC: https://lore.kernel.org/all/20230609102122.118800-1-jefflexu@linux.alibaba.com/
> v2: https://lore.kernel.org/all/20230612074103.4866-1-jefflexu@linux.alibaba.com/
> 
> Jingbo Xu (2):
>   block: disallow Persistent Reservation on partitions
>   block: fine-granular CAP_SYS_ADMIN for Persistent Reservation
> 
>  block/ioctl.c | 47 +++++++++++++++++++++++++++++++----------------
>  1 file changed, 31 insertions(+), 16 deletions(-)
> 

-- 
Thanks,
Jingbo