[XFS] move remaining buftarg manpiluation from pagebuf to xfs

SGI Modid: 2.5.x-xfs:slinx:134068a

fs/xfs/linux/xfs_super.c

@@ -508,6 +508,14 @@ xfs_free_buftarg(
 	kfree(btp);
 }
 
+void
+xfs_relse_buftarg(
+	xfs_buftarg_t		*btp)
+{
+	invalidate_bdev(btp->pbr_bdev, 1);
+	truncate_inode_pages(btp->pbr_mapping, 0LL);
+}
+
 void
 xfs_size_buftarg(
 	xfs_buftarg_t		*btp,

fs/xfs/linux/xfs_super.h

@@ -88,6 +88,7 @@ extern void xfs_blkdev_put (struct block_device *);
 
 extern struct pb_target *xfs_alloc_buftarg (struct block_device *);
 extern void xfs_size_buftarg (struct pb_target *, unsigned int, unsigned int);
+extern void xfs_relse_buftarg (struct pb_target *);
 extern void xfs_free_buftarg (struct pb_target *);
 
 #endif	/* __XFS_SUPER_H__ */

fs/xfs/pagebuf/page_buf.h

@@ -296,8 +296,6 @@ extern int pagebuf_lock_value(		/* return count on lock		*/
 extern int pagebuf_lock(		/* lock buffer			*/
 		page_buf_t *);		/* buffer to lock		*/
 
-extern void pagebuf_target_clear(struct pb_target *);
-
 extern void pagebuf_unlock(		/* unlock buffer		*/
 		page_buf_t *);		/* buffer to unlock		*/
 

fs/xfs/pagebuf/page_buf_locking.c

@@ -121,14 +121,6 @@ pagebuf_lock(
 	return 0;
 }
 
-void
-pagebuf_target_clear(
-	pb_target_t		*target)
-{
-	invalidate_bdev(target->pbr_bdev, 1);
-	truncate_inode_pages(target->pbr_mapping, 0LL);
-}
-
 /*
  *	pagebuf_unlock
  *

fs/xfs/xfs_buf.h

@@ -300,8 +300,7 @@ extern void XFS_bflush(xfs_buftarg_t *);
 #define xfs_binval(buftarg) XFS_bflush(buftarg)
 
 #define xfs_incore_relse(buftarg,delwri_only,wait)	\
-       pagebuf_target_clear(buftarg)
-
+	xfs_relse_buftarg(buftarg)
 
 #define xfs_baread(target, rablkno, ralen)  \
 	pagebuf_readahead((target), (rablkno), \