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blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN
A user space process should not need the CAP_SYS_ADMIN capability set in order to perform a BLKREPORTZONE ioctl. Getting the zone report is required in order to get the write pointer. Neither read() nor write() requires CAP_SYS_ADMIN, so it is reasonable that a user space process that can read/write from/to the device, also can get the write pointer. (Since e.g. writes have to be at the write pointer.) Fixes: 3ed05a9 ("blk-zoned: implement ioctls") Signed-off-by: Niklas Cassel <[email protected]> Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Aravind Ramesh <[email protected]> Reviewed-by: Adam Manzanares <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Cc: [email protected] # v4.10+ Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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