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| author |   Darrick J. Wong <djwong@kernel.org> | 2023-10-16 09:21:05 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-10-17 16:22:40 -0700 |
| commit | b73494fa9a304ab95b59f07845e8d7d36e4d23e0 (patch) | |
| tree | e5a37b7c4686ca202f16f17cbcffd017e2a67fee /fs/xfs/xfs_rtalloc.c | |
| parent | xfs: hoist freeing of rt data fork extent mappings (diff) | |
| download | wireguard-linux-b73494fa9a304ab95b59f07845e8d7d36e4d23e0.tar.xz wireguard-linux-b73494fa9a304ab95b59f07845e8d7d36e4d23e0.zip | |
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: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_rtalloc.c')
| -rw-r--r-- | fs/xfs/xfs_rtalloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 16534e9873f6..31fd65b3aaa9 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -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; |