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Diffstat (limited to 'fs/xfs/xfs_btree.c')
-rw-r--r--fs/xfs/xfs_btree.c105
1 files changed, 39 insertions, 66 deletions
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index aeb87ca..cc593a8 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -46,38 +46,11 @@ kmem_zone_t *xfs_btree_cur_zone;
/*
* Btree magic numbers.
*/
-const __uint32_t xfs_magics[XFS_BTNUM_MAX] =
-{
+const __uint32_t xfs_magics[XFS_BTNUM_MAX] = {
XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC
};
/*
- * Prototypes for internal routines.
- */
-
-/*
- * Checking routine: return maxrecs for the block.
- */
-STATIC int /* number of records fitting in block */
-xfs_btree_maxrecs(
- xfs_btree_cur_t *cur, /* btree cursor */
- xfs_btree_block_t *block);/* generic btree block pointer */
-
-/*
- * Internal routines.
- */
-
-/*
- * Retrieve the block pointer from the cursor at the given level.
- * This may be a bmap btree root or from a buffer.
- */
-STATIC xfs_btree_block_t * /* generic btree block pointer */
-xfs_btree_get_block(
- xfs_btree_cur_t *cur, /* btree cursor */
- int level, /* level in btree */
- struct xfs_buf **bpp); /* buffer containing the block */
-
-/*
* Checking routine: return maxrecs for the block.
*/
STATIC int /* number of records fitting in block */
@@ -457,35 +430,6 @@ xfs_btree_dup_cursor(
}
/*
- * Change the cursor to point to the first record at the given level.
- * Other levels are unaffected.
- */
-int /* success=1, failure=0 */
-xfs_btree_firstrec(
- xfs_btree_cur_t *cur, /* btree cursor */
- int level) /* level to change */
-{
- xfs_btree_block_t *block; /* generic btree block pointer */
- xfs_buf_t *bp; /* buffer containing block */
-
- /*
- * Get the block pointer for this level.
- */
- block = xfs_btree_get_block(cur, level, &bp);
- xfs_btree_check_block(cur, block, level, bp);
- /*
- * It's empty, there is no such record.
- */
- if (!block->bb_h.bb_numrecs)
- return 0;
- /*
- * Set the ptr value to 1, that's the first record/key.
- */
- cur->bc_ptrs[level] = 1;
- return 1;
-}
-
-/*
* Retrieve the block pointer from the cursor at the given level.
* This may be a bmap btree root or from a buffer.
*/
@@ -626,6 +570,13 @@ xfs_btree_init_cursor(
cur->bc_private.a.agbp = agbp;
cur->bc_private.a.agno = agno;
break;
+ case XFS_BTNUM_INO:
+ /*
+ * Inode allocation btree fields.
+ */
+ cur->bc_private.a.agbp = agbp;
+ cur->bc_private.a.agno = agno;
+ break;
case XFS_BTNUM_BMAP:
/*
* Bmap btree fields.
@@ -638,13 +589,6 @@ xfs_btree_init_cursor(
cur->bc_private.b.flags = 0;
cur->bc_private.b.whichfork = whichfork;
break;
- case XFS_BTNUM_INO:
- /*
- * Inode allocation btree fields.
- */
- cur->bc_private.i.agbp = agbp;
- cur->bc_private.i.agno = agno;
- break;
default:
ASSERT(0);
}
@@ -671,6 +615,35 @@ xfs_btree_islastblock(
}
/*
+ * Change the cursor to point to the first record at the given level.
+ * Other levels are unaffected.
+ */
+int /* success=1, failure=0 */
+xfs_btree_firstrec(
+ xfs_btree_cur_t *cur, /* btree cursor */
+ int level) /* level to change */
+{
+ xfs_btree_block_t *block; /* generic btree block pointer */
+ xfs_buf_t *bp; /* buffer containing block */
+
+ /*
+ * Get the block pointer for this level.
+ */
+ block = xfs_btree_get_block(cur, level, &bp);
+ xfs_btree_check_block(cur, block, level, bp);
+ /*
+ * It's empty, there is no such record.
+ */
+ if (!block->bb_h.bb_numrecs)
+ return 0;
+ /*
+ * Set the ptr value to 1, that's the first record/key.
+ */
+ cur->bc_ptrs[level] = 1;
+ return 1;
+}
+
+/*
* Change the cursor to point to the last record in the current block
* at the given level. Other levels are unaffected.
*/
@@ -890,12 +863,12 @@ xfs_btree_readahead_core(
case XFS_BTNUM_INO:
i = XFS_BUF_TO_INOBT_BLOCK(cur->bc_bufs[lev]);
if ((lr & XFS_BTCUR_LEFTRA) && be32_to_cpu(i->bb_leftsib) != NULLAGBLOCK) {
- xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+ xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
be32_to_cpu(i->bb_leftsib), 1);
rval++;
}
if ((lr & XFS_BTCUR_RIGHTRA) && be32_to_cpu(i->bb_rightsib) != NULLAGBLOCK) {
- xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+ xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
be32_to_cpu(i->bb_rightsib), 1);
rval++;
}
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