Re: [PATCH v4 1/2] blk-zoned: allow zone management send operations without CAP_SYS_ADMIN

[Johannes Thumshirn]

On 09/08/2021 11:50, Niklas Cassel wrote:
> From: Niklas Cassel <niklas.cassel@xxxxxxx>
> 
> Zone management send operations (BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE
> and BLKFINISHZONE) should be allowed under the same permissions as write().
> (write() does not require CAP_SYS_ADMIN).
> 
> Additionally, other ioctls like BLKSECDISCARD and BLKZEROOUT only check if
> the fd was successfully opened with FMODE_WRITE.
> (They do not require CAP_SYS_ADMIN).
> 
> Currently, zone management send operations require both CAP_SYS_ADMIN
> and that the fd was successfully opened with FMODE_WRITE.
> 
> Remove the CAP_SYS_ADMIN requirement, so that zone management send
> operations match the access control requirement of write(), BLKSECDISCARD
> and BLKZEROOUT.
> 
> Fixes: 3ed05a987e0f ("blk-zoned: implement ioctls")
> Signed-off-by: Niklas Cassel <niklas.cassel@xxxxxxx>
> Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxx>
> Reviewed-by: Aravind Ramesh <aravind.ramesh@xxxxxxx>
> Reviewed-by: Adam Manzanares <a.manzanares@xxxxxxxxxxx>
> Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx # v4.10+
> ---

Looks good,
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>