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: 3ed05a987e0f ("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]>

0 files changed, 0 insertions, 0 deletions