diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-07-12 12:58:50 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-07-15 09:58:42 -0700 |
| commit | 83193e5ebb0164d612aa620ceab7d3746e80e2a4 (patch) | |
| tree | 9e766de4b4ebf39c968f52b1bdf1a75857a205f7 /fs/xfs/xfs_ioctl.c | |
| parent | 5838d0356bb3c320867c393f12b169c01a870bda (diff) | |
xfs: correct the narrative around misaligned rtinherit/extszinherit dirs
While auditing the realtime growfs code, I realized that the GROWFSRT
ioctl (and by extension xfs_growfs) has always allowed sysadmins to
change the realtime extent size when adding a realtime section to the
filesystem. Since we also have always allowed sysadmins to set
RTINHERIT and EXTSZINHERIT on directories even if there is no realtime
device, this invalidates the premise laid out in the comments added in
commit 603f000b15f2.
In other words, this is not a case of inadequate metadata validation.
This is a case of nearly forgotten (and apparently untested) but
supported functionality. Update the comments to reflect what we've
learned, and remove the log message about correcting the misalignment.
Fixes: 603f000b15f2 ("xfs: validate extsz hints against rt extent size when rtinherit is set")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 65270e63c032..275d1c3123bd 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1292,10 +1292,10 @@ xfs_ioctl_setattr_check_extsize( new_diflags = xfs_flags2diflags(ip, fa->fsx_xflags); /* - * Inode verifiers on older kernels don't check that the extent size - * hint is an integer multiple of the rt extent size on a directory - * with both rtinherit and extszinherit flags set. Don't let sysadmins - * misconfigure directories. + * Inode verifiers do not check that the extent size hint is an integer + * multiple of the rt extent size on a directory with both rtinherit + * and extszinherit flags set. Don't let sysadmins misconfigure + * directories. */ if ((new_diflags & XFS_DIFLAG_RTINHERIT) && (new_diflags & XFS_DIFLAG_EXTSZINHERIT)) { |