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-rw-r--r--fs/xfs/xfs_inode.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 6d63dc031127..f14c1de2549d 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -490,4 +490,7 @@ do { \
 
 extern struct kmem_zone	*xfs_inode_zone;
 
+/* The default CoW extent size hint. */
+#define XFS_DEFAULT_COWEXTSZ_HINT 32
+
 #endif	/* __XFS_INODE_H__ */