xfs: enable logged file mapping exchange feature

Add the XFS_SB_FEAT_INCOMPAT_EXCHRANGE feature to the set of features
that we will permit when mounting a filesystem.  This turns on support
for the file range exchange feature.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index ff1e283..10153ce 100644 (file)
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -380,7 +380,8 @@ xfs_sb_has_ro_compat_feature(
                 XFS_SB_FEAT_INCOMPAT_META_UUID | \
                 XFS_SB_FEAT_INCOMPAT_BIGTIME | \
                 XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR | \
-                XFS_SB_FEAT_INCOMPAT_NREXT64)
+                XFS_SB_FEAT_INCOMPAT_NREXT64 | \
+                XFS_SB_FEAT_INCOMPAT_EXCHRANGE)
 
 #define XFS_SB_FEAT_INCOMPAT_UNKNOWN   ~XFS_SB_FEAT_INCOMPAT_ALL
 static inline bool