[XFS] implement generic xfs_btree_update

From: Dave Chinner <dgc@sgi.com>

The most complicated part here is the lastrec tracking for the alloc
btree. Most logic is in the update_lastrec method which has to do some
hopefully good enough dirty magic to maintain it.

[hch: split out from bigger patch and a rework of the lastrec

logic]

SGI-PV: 985583

SGI-Modid: xfs-linux-melb:xfs-kern:32194a

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, 0 insertions, 52 deletions

diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index cd8bb519cb5f..d080a6833a8d 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -1551,58 +1551,6 @@ xfs_inobt_insert(
         return 0;
 }
 
-/*
- * Update the record referred to by cur, to the value given
- * by [ino, fcnt, free].
- * This either works (return 0) or gets an EFSCORRUPTED error.
- */
-int                                     /* error */
-xfs_inobt_update(
-        xfs_btree_cur_t         *cur,   /* btree cursor */
-        xfs_agino_t             ino,    /* starting inode of chunk */
-        __int32_t               fcnt,   /* free inode count */
-        xfs_inofree_t           free)   /* free inode mask */
-{
-        xfs_inobt_block_t       *block; /* btree block to update */
-        xfs_buf_t               *bp;    /* buffer containing btree block */
-        int                     error;  /* error return value */
-        int                     ptr;    /* current record number (updating) */
-        xfs_inobt_rec_t         *rp;    /* pointer to updated record */
-
-        /*
-         * Pick up the current block.
-         */
-        bp = cur->bc_bufs[0];
-        block = XFS_BUF_TO_INOBT_BLOCK(bp);
-#ifdef DEBUG
-        if ((error = xfs_btree_check_sblock(cur, block, 0, bp)))
-                return error;
-#endif
-        /*
-         * Get the address of the rec to be updated.
-         */
-        ptr = cur->bc_ptrs[0];
-        rp = XFS_INOBT_REC_ADDR(block, ptr, cur);
-        /*
-         * Fill in the new contents and log them.
-         */
-        rp->ir_startino = cpu_to_be32(ino);
-        rp->ir_freecount = cpu_to_be32(fcnt);
-        rp->ir_free = cpu_to_be64(free);
-        xfs_inobt_log_recs(cur, bp, ptr, ptr);
-        /*
-         * Updating first record in leaf. Pass new key value up to our parent.
-         */
-        if (ptr == 1) {
-                xfs_inobt_key_t key;    /* key containing [ino] */
-
-                key.ir_startino = cpu_to_be32(ino);
-                if ((error = xfs_btree_updkey(cur, (union xfs_btree_key *)&key, 1)))
-                        return error;
-        }
-        return 0;
-}
-
 STATIC struct xfs_btree_cur *
 xfs_inobt_dup_cursor(
         struct xfs_btree_cur    *cur)