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authorChristoph Hellwig <hch@infradead.org>2008-10-30 16:58:32 +1100
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 16:58:32 +1100
commit4a26e66e7728112f0e1cd7eca3bcc430b3a221c9 (patch)
tree1944f9aa65476c963658b7b4679f7a64287adfb6 /fs/xfs/xfs_alloc_btree.c
parentfd6bcc5b63051392ba709a8fd33173b263669e0a (diff)
[XFS] add keys_inorder and recs_inorder btree methods
Add methods to check whether two keys/records are in the righ order. This replaces the xfs_btree_check_key and xfs_btree_check_rec methods. For the callers from xfs_bmap.c just opencode the bmbt-specific asserts. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32208a 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>
Diffstat (limited to 'fs/xfs/xfs_alloc_btree.c')
-rw-r--r--fs/xfs/xfs_alloc_btree.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 4d44f03858b..9e63f8c180d 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -311,6 +311,45 @@ xfs_allocbt_kill_root(
return 0;
}
+#ifdef DEBUG
+STATIC int
+xfs_allocbt_keys_inorder(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_key *k1,
+ union xfs_btree_key *k2)
+{
+ if (cur->bc_btnum == XFS_BTNUM_BNO) {
+ return be32_to_cpu(k1->alloc.ar_startblock) <
+ be32_to_cpu(k2->alloc.ar_startblock);
+ } else {
+ return be32_to_cpu(k1->alloc.ar_blockcount) <
+ be32_to_cpu(k2->alloc.ar_blockcount) ||
+ (k1->alloc.ar_blockcount == k2->alloc.ar_blockcount &&
+ be32_to_cpu(k1->alloc.ar_startblock) <
+ be32_to_cpu(k2->alloc.ar_startblock));
+ }
+}
+
+STATIC int
+xfs_allocbt_recs_inorder(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_rec *r1,
+ union xfs_btree_rec *r2)
+{
+ if (cur->bc_btnum == XFS_BTNUM_BNO) {
+ return be32_to_cpu(r1->alloc.ar_startblock) +
+ be32_to_cpu(r1->alloc.ar_blockcount) <=
+ be32_to_cpu(r2->alloc.ar_startblock);
+ } else {
+ return be32_to_cpu(r1->alloc.ar_blockcount) <
+ be32_to_cpu(r2->alloc.ar_blockcount) ||
+ (r1->alloc.ar_blockcount == r2->alloc.ar_blockcount &&
+ be32_to_cpu(r1->alloc.ar_startblock) <
+ be32_to_cpu(r2->alloc.ar_startblock));
+ }
+}
+#endif /* DEBUG */
+
#ifdef XFS_BTREE_TRACE
ktrace_t *xfs_allocbt_trace_buf;
@@ -395,6 +434,11 @@ static const struct xfs_btree_ops xfs_allocbt_ops = {
.init_ptr_from_cur = xfs_allocbt_init_ptr_from_cur,
.key_diff = xfs_allocbt_key_diff,
+#ifdef DEBUG
+ .keys_inorder = xfs_allocbt_keys_inorder,
+ .recs_inorder = xfs_allocbt_recs_inorder,
+#endif
+
#ifdef XFS_BTREE_TRACE
.trace_enter = xfs_allocbt_trace_enter,
.trace_cursor = xfs_allocbt_trace_cursor,