xfs: remove the xfs_btree_get_buf[ls] functions

Remove the xfs_btree_get_bufs and xfs_btree_get_bufl functions, since
they're pretty trivial oneliners.

Signed-off-by: Darrick J. Wong <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
Reviewed-by: Dave Chinner <[e-mail]>

fs/xfs/libxfs/xfs_alloc.c

···
 	if (args->datatype & XFS_ALLOC_USERDATA) {
 		struct xfs_buf	*bp;
 
-		bp = xfs_btree_get_bufs(args->mp, args->tp, args->agno, fbno);
-		if (XFS_IS_CORRUPT(args->mp, !bp)) {
-			error = -EFSCORRUPTED;
+		error = xfs_trans_get_buf(args->tp, args->mp->m_ddev_targp,
+				XFS_AGB_TO_DADDR(args->mp, args->agno, fbno),
+				args->mp->m_bsize, 0, &bp);
+		if (error)
 			goto error;
-		}
 		xfs_trans_binval(args->tp, bp);
 	}
 	*fbnop = args->agbno = fbno;
···
 	if (error)
 		return error;
 
-	bp = xfs_btree_get_bufs(tp->t_mountp, tp, agno, agbno);
-	if (XFS_IS_CORRUPT(tp->t_mountp, !bp))
-		return -EFSCORRUPTED;
+	error = xfs_trans_get_buf(tp, tp->t_mountp->m_ddev_targp,
+			XFS_AGB_TO_DADDR(tp->t_mountp, agno, agbno),
+			tp->t_mountp->m_bsize, 0, &bp);
+	if (error)
+		return error;
 	xfs_trans_binval(tp, bp);
 
 	return 0;

fs/xfs/libxfs/xfs_bmap.c

···
 	cur->bc_private.b.allocated++;
 	ip->i_d.di_nblocks++;
 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, 1L);
-	abp = xfs_btree_get_bufl(mp, tp, args.fsbno);
-	if (XFS_IS_CORRUPT(mp, !abp)) {
-		error = -EFSCORRUPTED;
+	error = xfs_trans_get_buf(tp, mp->m_ddev_targp,
+			XFS_FSB_TO_DADDR(mp, args.fsbno),
+			mp->m_bsize, 0, &abp);
+	if (error)
 		goto out_unreserve_dquot;
-	}
 
 	/*
 	 * Fill in the child block.
···
 	ASSERT(args.fsbno != NULLFSBLOCK);
 	ASSERT(args.len == 1);
 	tp->t_firstblock = args.fsbno;
-	bp = xfs_btree_get_bufl(args.mp, tp, args.fsbno);
+	error = xfs_trans_get_buf(tp, args.mp->m_ddev_targp,
+			XFS_FSB_TO_DADDR(args.mp, args.fsbno),
+			args.mp->m_bsize, 0, &bp);
+	if (error)
+		goto done;
 
 	/*
 	 * Initialize the block, copy the data and log the remote buffer.

fs/xfs/libxfs/xfs_btree.c

···
 }
 
 /*
- * Get a buffer for the block, return it with no data read.
- * Long-form addressing.
- */
-xfs_buf_t *				/* buffer for fsbno */
-xfs_btree_get_bufl(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_fsblock_t	fsbno)		/* file system block number */
-{
-	struct xfs_buf		*bp;
-	xfs_daddr_t		d;		/* real disk block address */
-	int			error;
-
-	ASSERT(fsbno != NULLFSBLOCK);
-	d = XFS_FSB_TO_DADDR(mp, fsbno);
-	error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp);
-	if (error)
-		return NULL;
-	return bp;
-}
-
-/*
- * Get a buffer for the block, return it with no data read.
- * Short-form addressing.
- */
-xfs_buf_t *				/* buffer for agno/agbno */
-xfs_btree_get_bufs(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_agnumber_t	agno,		/* allocation group number */
-	xfs_agblock_t	agbno)		/* allocation group block number */
-{
-	struct xfs_buf		*bp;
-	xfs_daddr_t		d;		/* real disk block address */
-	int			error;
-
-	ASSERT(agno != NULLAGNUMBER);
-	ASSERT(agbno != NULLAGBLOCK);
-	d = XFS_AGB_TO_DADDR(mp, agno, agbno);
-	error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp);
-	if (error)
-		return NULL;
-	return bp;
-}
-
-/*
  * Change the cursor to point to the first record at the given level.
  * Other levels are unaffected.
  */

fs/xfs/libxfs/xfs_btree.h

···
 	xfs_btree_cur_t		**ncur);/* output cursor */
 
 /*
- * Get a buffer for the block, return it with no data read.
- * Long-form addressing.
- */
-struct xfs_buf *				/* buffer for fsbno */
-xfs_btree_get_bufl(
-	struct xfs_mount	*mp,	/* file system mount point */
-	struct xfs_trans	*tp,	/* transaction pointer */
-	xfs_fsblock_t		fsbno);	/* file system block number */
-
-/*
- * Get a buffer for the block, return it with no data read.
- * Short-form addressing.
- */
-struct xfs_buf *				/* buffer for agno/agbno */
-xfs_btree_get_bufs(
-	struct xfs_mount	*mp,	/* file system mount point */
-	struct xfs_trans	*tp,	/* transaction pointer */
-	xfs_agnumber_t		agno,	/* allocation group number */
-	xfs_agblock_t		agbno);	/* allocation group block number */
-
-/*
  * Compute first and last byte offsets for the fields given.
  * Interprets the offsets table, which contains struct field offsets.
  */