md: allow non-privileged uses to GET_*_INFO about raid arrays.



The info is already available in /proc/mdstat and /sys/block in
an accessible form so there is no point in putting a road-block in
the ioctl for information gathering.

Signed-off-by: NeilBrown <neilb@suse.de>

parent 961902c0

drivers/md/md.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -6054,8 +6054,15 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
		struct mddev *mddev = NULL;
		int ro;

		switch (cmd) {
		case RAID_VERSION:
		case GET_ARRAY_INFO:
		case GET_DISK_INFO:
		break;
		default:
		if (!capable(CAP_SYS_ADMIN))
		return -EACCES;
		}

		/*
		* Commands dealing with the RAID driver but not any