diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 12:20:57 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 12:20:57 +1000 |
| commit | 1c0607ace9bd639d22ad1bd453ffeb7d55913f88 (patch) | |
| tree | 85e2ada09958be2ab9e447a4dbf21e0beaf714a5 /fs | |
| parent | 04f130605ff6fb01a93a0885607921df9c463eed (diff) | |
| download | linux-1c0607ace9bd639d22ad1bd453ffeb7d55913f88.tar.bz2 | |
xfs: enable the rmap btree functionality
Originally-From: Dave Chinner <dchinner@redhat.com>
Add the feature flag to the supported matrix so that the kernel can
mount and use rmap btree enabled filesystems
Signed-off-by: Dave Chinner <dchinner@redhat.com>
[darrick.wong@oracle.com: move the experimental tag]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 3 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index f6a0641e64c8..f814d42c73b2 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -457,7 +457,8 @@ xfs_sb_has_compat_feature( #define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */ #define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */ #define XFS_SB_FEAT_RO_COMPAT_ALL \ - (XFS_SB_FEAT_RO_COMPAT_FINOBT) + (XFS_SB_FEAT_RO_COMPAT_FINOBT | \ + XFS_SB_FEAT_RO_COMPAT_RMAPBT) #define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL static inline bool xfs_sb_has_ro_compat_feature( diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 9f8090951f09..45773df1dd0b 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1574,6 +1574,10 @@ xfs_fs_fill_super( } } + if (xfs_sb_version_hasrmapbt(&mp->m_sb)) + xfs_alert(mp, + "EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!"); + error = xfs_mountfs(mp); if (error) goto out_filestream_unmount; |