Commit b73494fa authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

xfs: prevent rt growfs when quota is enabled 



Quotas aren't (yet) supported with realtime, so we shouldn't allow
userspace to set up a realtime section when quotas are enabled, even if
they attached one via mount options.  IOWS, you shouldn't be able to do:

# mkfs.xfs -f /dev/sda
# mount /dev/sda /mnt -o rtdev=/dev/sdb,usrquota
# xfs_growfs -r /mnt

Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
parent 6c664484

fs/xfs/xfs_rtalloc.c

+1 −1
Original line number Diff line number Diff line
@@ -954,7 +954,7 @@ xfs_growfs_rt( 
		return -EINVAL;



	/* Unsupported realtime features. */

	if (xfs_has_rmapbt(mp) || xfs_has_reflink(mp))

	if (xfs_has_rmapbt(mp) || xfs_has_reflink(mp) || xfs_has_quota(mp))

		return -EOPNOTSUPP;



	nrblocks = in->newblocks;