Commit 1c0607ac authored by Darrick J. Wong's avatar Darrick J. Wong Committed by Dave Chinner

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: default avatarDave Chinner <dchinner@redhat.com>
[darrick.wong@oracle.com: move the experimental tag]
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent 04f13060
...@@ -457,7 +457,8 @@ xfs_sb_has_compat_feature( ...@@ -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_FINOBT (1 << 0) /* free inode btree */
#define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */ #define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */
#define XFS_SB_FEAT_RO_COMPAT_ALL \ #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 #define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL
static inline bool static inline bool
xfs_sb_has_ro_compat_feature( xfs_sb_has_ro_compat_feature(
......
...@@ -1574,6 +1574,10 @@ xfs_fs_fill_super( ...@@ -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); error = xfs_mountfs(mp);
if (error) if (error)
goto out_filestream_unmount; goto out_filestream_unmount;
......
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