xfs: hoist extent size helpers to libxfs

Move the extent size helpers to xfs_bmap.c in libxfs since they're used
there already.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

fs/xfs/libxfs/xfs_bmap.c

@@ -6454,3 +6454,45 @@ xfs_bmap_query_all(
 
 	return xfs_btree_query_all(cur, xfs_bmap_query_range_helper, &query);
 }
+
+/* Helper function to extract extent size hint from inode */
+xfs_extlen_t
+xfs_get_extsz_hint(
+	struct xfs_inode	*ip)
+{
+	/*
+	 * No point in aligning allocations if we need to COW to actually
+	 * write to them.
+	 */
+	if (xfs_is_always_cow_inode(ip))
+		return 0;
+	if ((ip->i_diflags & XFS_DIFLAG_EXTSIZE) && ip->i_extsize)
+		return ip->i_extsize;
+	if (XFS_IS_REALTIME_INODE(ip) &&
+	    ip->i_mount->m_sb.sb_rextsize > 1)
+		return ip->i_mount->m_sb.sb_rextsize;
+	return 0;
+}
+
+/*
+ * Helper function to extract CoW extent size hint from inode.
+ * Between the extent size hint and the CoW extent size hint, we
+ * return the greater of the two.  If the value is zero (automatic),
+ * use the default size.
+ */
+xfs_extlen_t
+xfs_get_cowextsz_hint(
+	struct xfs_inode	*ip)
+{
+	xfs_extlen_t		a, b;
+
+	a = 0;
+	if (ip->i_diflags2 & XFS_DIFLAG2_COWEXTSIZE)
+		a = ip->i_cowextsize;
+	b = xfs_get_extsz_hint(ip);
+
+	a = max(a, b);
+	if (a == 0)
+		return XFS_DEFAULT_COWEXTSZ_HINT;
+	return a;
+}

fs/xfs/libxfs/xfs_bmap.h

@@ -296,4 +296,7 @@ typedef int (*xfs_bmap_query_range_fn)(
 int xfs_bmap_query_all(struct xfs_btree_cur *cur, xfs_bmap_query_range_fn fn,
 		void *priv);
 
+xfs_extlen_t	xfs_get_extsz_hint(struct xfs_inode *ip);
+xfs_extlen_t	xfs_get_cowextsz_hint(struct xfs_inode *ip);
+
 #endif	/* __XFS_BMAP_H__ */

fs/xfs/xfs_inode.c

@@ -46,50 +46,6 @@
 
 struct kmem_cache *xfs_inode_cache;
 
-/*
- * helper function to extract extent size hint from inode
- */
-xfs_extlen_t
-xfs_get_extsz_hint(
-	struct xfs_inode	*ip)
-{
-	/*
-	 * No point in aligning allocations if we need to COW to actually
-	 * write to them.
-	 */
-	if (xfs_is_always_cow_inode(ip))
-		return 0;
-	if ((ip->i_diflags & XFS_DIFLAG_EXTSIZE) && ip->i_extsize)
-		return ip->i_extsize;
-	if (XFS_IS_REALTIME_INODE(ip) &&
-	    ip->i_mount->m_sb.sb_rextsize > 1)
-		return ip->i_mount->m_sb.sb_rextsize;
-	return 0;
-}
-
-/*
- * Helper function to extract CoW extent size hint from inode.
- * Between the extent size hint and the CoW extent size hint, we
- * return the greater of the two.  If the value is zero (automatic),
- * use the default size.
- */
-xfs_extlen_t
-xfs_get_cowextsz_hint(
-	struct xfs_inode	*ip)
-{
-	xfs_extlen_t		a, b;
-
-	a = 0;
-	if (ip->i_diflags2 & XFS_DIFLAG2_COWEXTSIZE)
-		a = ip->i_cowextsize;
-	b = xfs_get_extsz_hint(ip);
-
-	a = max(a, b);
-	if (a == 0)
-		return XFS_DEFAULT_COWEXTSZ_HINT;
-	return a;
-}
-
 /*
  * These two are wrapper routines around the xfs_ilock() routine used to
  * centralize some grungy code.  They are used in places that wish to lock the

fs/xfs/xfs_inode.h

@@ -563,9 +563,6 @@ int		xfs_iflush_cluster(struct xfs_buf *);
 void		xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
 				struct xfs_inode *ip1, uint ip1_mode);
 
-xfs_extlen_t	xfs_get_extsz_hint(struct xfs_inode *ip);
-xfs_extlen_t	xfs_get_cowextsz_hint(struct xfs_inode *ip);
-
 int xfs_init_new_inode(struct mnt_idmap *idmap, struct xfs_trans *tp,
 		struct xfs_inode *pip, xfs_ino_t ino, umode_t mode,
 		xfs_nlink_t nlink, dev_t rdev, prid_t prid, bool init_xattrs,

fs/xfs/xfs_iops.c

@@ -26,6 +26,7 @@
 #include "xfs_ioctl.h"
 #include "xfs_xattr.h"
 #include "xfs_file.h"
+#include "xfs_bmap.h"
 
 #include <linux/posix_acl.h>
 #include <linux/security.h>