[XFS] cleanup btree record / key / ptr addressing macros.

Replace the generic record / key / ptr addressing macros that use cpp
token pasting with simpler macros that do the job for just one given btree
type. The new macros lose the cur argument and thus can be used outside
the core btree code, but also gain an xfs_mount * argument to allow for
checking the CRC flag in the near future. Note that many of these macros
aren't actually used in the kernel code, but only in userspace (mostly in
xfs_repair).

SGI-PV: 988146

SGI-Modid: xfs-linux-melb:xfs-kern:32295a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 24 insertions, 30 deletions

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 09e4de4ed50..3dab937d4b8 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -393,7 +393,7 @@ xfs_bmap_count_leaves(
 
 STATIC void
 xfs_bmap_disk_count_leaves(
-	xfs_extnum_t		idx,
+	struct xfs_mount	*mp,
 	xfs_bmbt_block_t	*block,
 	int			numrecs,
 	int			*count);
@@ -3539,7 +3539,7 @@ xfs_bmap_extents_to_btree(
 	ablock->bb_level = 0;
 	ablock->bb_leftsib = cpu_to_be64(NULLDFSBNO);
 	ablock->bb_rightsib = cpu_to_be64(NULLDFSBNO);
-	arp = XFS_BMAP_REC_IADDR(ablock, 1, cur);
+	arp = XFS_BMBT_REC_ADDR(mp, ablock, 1);
 	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
 	for (cnt = i = 0; i < nextents; i++) {
 		ep = xfs_iext_get_ext(ifp, i);
@@ -3554,11 +3554,13 @@ xfs_bmap_extents_to_btree(
 	/*
 	 * Fill in the root key and pointer.
 	 */
-	kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
-	arp = XFS_BMAP_REC_IADDR(ablock, 1, cur);
+	kp = XFS_BMBT_KEY_ADDR(mp, block, 1);
+	arp = XFS_BMBT_REC_ADDR(mp, ablock, 1);
 	kp->br_startoff = cpu_to_be64(xfs_bmbt_disk_get_startoff(arp));
-	pp = XFS_BMAP_PTR_IADDR(block, 1, cur);
+	pp = XFS_BMBT_PTR_ADDR(mp, block, 1, xfs_bmbt_get_maxrecs(cur,
+						be16_to_cpu(block->bb_level)));
 	*pp = cpu_to_be64(args.fsbno);
+
 	/*
 	 * Do all this logging at the end so that
 	 * the root is at the right level.
@@ -4574,7 +4576,7 @@ xfs_bmap_read_extents(
 			error0);
 		if (level == 0)
 			break;
-		pp = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, 1, mp->m_bmap_dmxr[1]);
+		pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);
 		bno = be64_to_cpu(*pp);
 		XFS_WANT_CORRUPTED_GOTO(XFS_FSB_SANITY_CHECK(mp, bno), error0);
 		xfs_trans_brelse(tp, bp);
@@ -4617,7 +4619,7 @@ xfs_bmap_read_extents(
 		/*
 		 * Copy records into the extent records.
 		 */
-		frp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, 1);
+		frp = XFS_BMBT_REC_ADDR(mp, block, 1);
 		start = i;
 		for (j = 0; j < num_recs; j++, i++, frp++) {
 			xfs_bmbt_rec_host_t *trp = xfs_iext_get_ext(ifp, i);
@@ -6187,12 +6189,7 @@ xfs_check_block(
 	prevp = NULL;
 	for( i = 1; i <= be16_to_cpu(block->bb_numrecs); i++) {
 		dmxr = mp->m_bmap_dmxr[0];
-
-		if (root) {
-			keyp = XFS_BMAP_BROOT_KEY_ADDR(block, i, sz);
-		} else {
-			keyp = XFS_BTREE_KEY_ADDR(xfs_bmbt, block, i);
-		}
+		keyp = XFS_BMBT_KEY_ADDR(mp, block, i);
 
 		if (prevp) {
 			ASSERT(be64_to_cpu(prevp->br_startoff) <
@@ -6203,19 +6200,16 @@ xfs_check_block(
 		/*
 		 * Compare the block numbers to see if there are dups.
 		 */
-
-		if (root) {
+		if (root)
 			pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, i, sz);
-		} else {
-			pp = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, i, dmxr);
-		}
+		else
+			pp = XFS_BMBT_PTR_ADDR(mp, block, i, dmxr);
+
 		for (j = i+1; j <= be16_to_cpu(block->bb_numrecs); j++) {
-			if (root) {
+			if (root)
 				thispa = XFS_BMAP_BROOT_PTR_ADDR(mp, block, j, sz);
-			} else {
-				thispa = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, j,
-							    dmxr);
-			}
+			else
+				thispa = XFS_BMBT_PTR_ADDR(mp, block, j, dmxr);
 			if (*thispa == *pp) {
 				cmn_err(CE_WARN, "%s: thispa(%d) == pp(%d) %Ld",
 					__func__, j, i,
@@ -6301,7 +6295,7 @@ xfs_bmap_check_leaf_extents(
 		 */
 
 		xfs_check_block(block, mp, 0, 0);
-		pp = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, 1, mp->m_bmap_dmxr[1]);
+		pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);
 		bno = be64_to_cpu(*pp);
 		XFS_WANT_CORRUPTED_GOTO(XFS_FSB_SANITY_CHECK(mp, bno), error0);
 		if (bp_release) {
@@ -6337,14 +6331,14 @@ xfs_bmap_check_leaf_extents(
 		 * conform with the first entry in this one.
 		 */
 
-		ep = XFS_BTREE_REC_ADDR(xfs_bmbt, block, 1);
+		ep = XFS_BMBT_REC_ADDR(mp, block, 1);
 		if (i) {
 			ASSERT(xfs_bmbt_disk_get_startoff(&last) +
 			       xfs_bmbt_disk_get_blockcount(&last) <=
 			       xfs_bmbt_disk_get_startoff(ep));
 		}
 		for (j = 1; j < num_recs; j++) {
-			nextp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, j + 1);
+			nextp = XFS_BMBT_REC_ADDR(mp, block, j + 1);
 			ASSERT(xfs_bmbt_disk_get_startoff(ep) +
 			       xfs_bmbt_disk_get_blockcount(ep) <=
 			       xfs_bmbt_disk_get_startoff(nextp));
@@ -6482,7 +6476,7 @@ xfs_bmap_count_tree(
 		}
 
 		/* Dive to the next level */
-		pp = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, 1, mp->m_bmap_dmxr[1]);
+		pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);
 		bno = be64_to_cpu(*pp);
 		if (unlikely((error =
 		     xfs_bmap_count_tree(mp, tp, ifp, bno, level, count)) < 0)) {
@@ -6497,7 +6491,7 @@ xfs_bmap_count_tree(
 		for (;;) {
 			nextbno = be64_to_cpu(block->bb_rightsib);
 			numrecs = be16_to_cpu(block->bb_numrecs);
-			xfs_bmap_disk_count_leaves(0, block, numrecs, count);
+			xfs_bmap_disk_count_leaves(mp, block, numrecs, count);
 			xfs_trans_brelse(tp, bp);
 			if (nextbno == NULLFSBLOCK)
 				break;
@@ -6536,7 +6530,7 @@ xfs_bmap_count_leaves(
  */
 STATIC void
 xfs_bmap_disk_count_leaves(
-	xfs_extnum_t		idx,
+	struct xfs_mount	*mp,
 	xfs_bmbt_block_t	*block,
 	int			numrecs,
 	int			*count)
@@ -6545,7 +6539,7 @@ xfs_bmap_disk_count_leaves(
 	xfs_bmbt_rec_t	*frp;
 
 	for (b = 1; b <= numrecs; b++) {
-		frp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, idx + b);
+		frp = XFS_BMBT_REC_ADDR(mp, block, b);
 		*count += xfs_bmbt_disk_get_blockcount(frp);
 	}
 }