diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-10-18 17:18:58 +1100 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2018-10-18 17:18:58 +1100 |
| commit | daa79baefc47293c753fed191d722f7ef605a303 (patch) | |
| tree | 34f39a4c2079bf783847dae0dd11d4012c1587d2 /fs/xfs/libxfs/xfs_format.h | |
| parent | 97e5a6e6dc44b9ea660f85de084f6e38cb5cf39c (diff) | |
xfs: remove suport for filesystems without unwritten extent flag
The option to enable unwritten extents was made default in 2003,
removed from mkfs in 2007, and cannot be disabled in v5. We also
rely on it for a lot of common functionality, so filesystems without
it will run a completely untested and buggy code path. Enabling the
support also is a simple bit flip using xfs_db, so legacy file
systems can still be brought forward.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_format.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index afbe336600e1..9995d5ae380b 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -287,6 +287,8 @@ static inline bool xfs_sb_good_v4_features(struct xfs_sb *sbp) { if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT)) return false; + if (!(sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT)) + return false; /* check for unknown features in the fs */ if ((sbp->sb_versionnum & ~XFS_SB_VERSION_OKBITS) || @@ -357,12 +359,6 @@ static inline bool xfs_sb_version_haslogv2(struct xfs_sb *sbp) (sbp->sb_versionnum & XFS_SB_VERSION_LOGV2BIT); } -static inline bool xfs_sb_version_hasextflgbit(struct xfs_sb *sbp) -{ - return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 || - (sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT); -} - static inline bool xfs_sb_version_hassector(struct xfs_sb *sbp) { return (sbp->sb_versionnum & XFS_SB_VERSION_SECTORBIT); |