diff --git a/fs/xfs/libxfs/xfs_inode_util.c b/fs/xfs/libxfs/xfs_inode_util.c
index ed5e1a9b4b8c..3b5397a3f34f 100644
--- a/fs/xfs/libxfs/xfs_inode_util.c
+++ b/fs/xfs/libxfs/xfs_inode_util.c
@@ -122,3 +122,13 @@ xfs_ip2xflags(
 		flags |= FS_XFLAG_HASATTR;
 	return flags;
 }
+
+prid_t
+xfs_get_initial_prid(struct xfs_inode *dp)
+{
+	if (dp->i_diflags & XFS_DIFLAG_PROJINHERIT)
+		return dp->i_projid;
+
+	/* Assign to the root project by default. */
+	return 0;
+}
diff --git a/fs/xfs/libxfs/xfs_inode_util.h b/fs/xfs/libxfs/xfs_inode_util.h
index 6ad1898a0f73..f7e4d5a8235d 100644
--- a/fs/xfs/libxfs/xfs_inode_util.h
+++ b/fs/xfs/libxfs/xfs_inode_util.h
@@ -11,4 +11,6 @@ uint64_t	xfs_flags2diflags2(struct xfs_inode *ip, unsigned int xflags);
 uint32_t	xfs_dic2xflags(struct xfs_inode *ip);
 uint32_t	xfs_ip2xflags(struct xfs_inode *ip);
 
+prid_t		xfs_get_initial_prid(struct xfs_inode *dp);
+
 #endif /* __XFS_INODE_UTIL_H__ */
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index b20768962e8d..15ab7a1c79a6 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -271,15 +271,6 @@ xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned long flags)
 	return ret;
 }
 
-static inline prid_t
-xfs_get_initial_prid(struct xfs_inode *dp)
-{
-	if (dp->i_diflags & XFS_DIFLAG_PROJINHERIT)
-		return dp->i_projid;
-
-	return XFS_PROJID_DEFAULT;
-}
-
 static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
 {
 	return ip->i_diflags2 & XFS_DIFLAG2_REFLINK;
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index ac355328121a..54a098fe7285 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -135,8 +135,6 @@ typedef __u32			xfs_nlink_t;
  */
 #define __this_address	({ __label__ __here; __here: barrier(); &&__here; })
 
-#define XFS_PROJID_DEFAULT	0
-
 #define howmany(x, y)	(((x)+((y)-1))/(y))
 
 static inline void delay(long ticks)