[XFS] implement generic xfs_btree_increment

From: Dave Chinner <dgc@sgi.com>

Because this is the first major generic btree routine this patch includes
some infrastrucure, first a few routines to deal with a btree block that
can be either in short or long form, second xfs_btree_read_buf_block,
which is the new central routine to read a btree block given a cursor, and
third the new xfs_btree_ptr_addr routine to calculate the address for a
given btree pointer record.

[hch: split out from bigger patch and minor adaptions]

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32190a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Bill O'Donnell <billodo@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index a5f02f0e4c2a..42a214b8df9e 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -471,7 +471,7 @@ xfs_bulkstat(
                          * In any case, increment to the next record.
                          */
                         if (!error)
-                                error = xfs_inobt_increment(cur, 0, &tmp);
+                                error = xfs_btree_increment(cur, 0, &tmp);
                 } else {
                         /*
                          * Start of ag.  Lookup the first inode chunk.
@@ -538,7 +538,7 @@ xfs_bulkstat(
                          * Set agino to after this chunk and bump the cursor.
                          */
                         agino = gino + XFS_INODES_PER_CHUNK;
-                        error = xfs_inobt_increment(cur, 0, &tmp);
+                        error = xfs_btree_increment(cur, 0, &tmp);
                         cond_resched();
                 }
                 /*
@@ -885,7 +885,7 @@ xfs_inumbers(
                         bufidx = 0;
                 }
                 if (left) {
-                        error = xfs_inobt_increment(cur, 0, &tmp);
+                        error = xfs_btree_increment(cur, 0, &tmp);
                         if (error) {
                                 xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
                                 cur = NULL;