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

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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>
This commit is contained in:
NeilBrown 2011-12-23 10:17:26 +11:00
parent 961902c0f8
commit 506c9e44a8
1 changed files with 9 additions and 2 deletions
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11
drivers/md/md.c
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@ -6054,8 +6054,15 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
struct mddev *mddev = NULL; struct mddev *mddev = NULL;
int ro; int ro;
if (!capable(CAP_SYS_ADMIN)) switch (cmd) {
return -EACCES; 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 * Commands dealing with the RAID driver but not any