return error;
}
-/* Determine the low key of a leaf block (simple) */
-void
-xfs_btree_get_leaf_keys(
- struct xfs_btree_cur *cur,
- struct xfs_btree_block *block,
- union xfs_btree_key *key)
-{
- union xfs_btree_rec *rec;
-
- rec = xfs_btree_rec_addr(cur, 1, block);
- cur->bc_ops->init_key_from_rec(key, rec);
-}
-
-/* Determine the low key of a node block (simple) */
-void
-xfs_btree_get_node_keys(
- struct xfs_btree_cur *cur,
- struct xfs_btree_block *block,
- union xfs_btree_key *key)
-{
- memcpy(key, xfs_btree_key_addr(cur, 1, block), cur->bc_ops->key_len);
-}
-
/* Find the high key storage area from a regular key. */
STATIC union xfs_btree_key *
xfs_btree_high_key_from_key(
(cur->bc_ops->key_len / 2));
}
-/* Determine the low and high keys of a leaf block (overlapped) */
-void
-xfs_btree_get_leaf_keys_overlapped(
+/* Determine the low (and high if overlapped) keys of a leaf block */
+STATIC void
+xfs_btree_get_leaf_keys(
struct xfs_btree_cur *cur,
struct xfs_btree_block *block,
union xfs_btree_key *key)
{
- int n;
- union xfs_btree_rec *rec;
union xfs_btree_key max_hkey;
union xfs_btree_key hkey;
+ union xfs_btree_rec *rec;
union xfs_btree_key *high;
+ int n;
- ASSERT(cur->bc_flags & XFS_BTREE_OVERLAPPING);
rec = xfs_btree_rec_addr(cur, 1, block);
cur->bc_ops->init_key_from_rec(key, rec);
- cur->bc_ops->init_high_key_from_rec(&max_hkey, rec);
- for (n = 2; n <= xfs_btree_get_numrecs(block); n++) {
- rec = xfs_btree_rec_addr(cur, n, block);
- cur->bc_ops->init_high_key_from_rec(&hkey, rec);
- if (cur->bc_ops->diff_two_keys(cur, &hkey, &max_hkey) > 0)
- max_hkey = hkey;
- }
+ if (cur->bc_flags & XFS_BTREE_OVERLAPPING) {
+
+ cur->bc_ops->init_high_key_from_rec(&max_hkey, rec);
+ for (n = 2; n <= xfs_btree_get_numrecs(block); n++) {
+ rec = xfs_btree_rec_addr(cur, n, block);
+ cur->bc_ops->init_high_key_from_rec(&hkey, rec);
+ if (cur->bc_ops->diff_two_keys(cur, &hkey, &max_hkey)
+ > 0)
+ max_hkey = hkey;
+ }
- high = xfs_btree_high_key_from_key(cur, key);
- memcpy(high, &max_hkey, cur->bc_ops->key_len / 2);
+ high = xfs_btree_high_key_from_key(cur, key);
+ memcpy(high, &max_hkey, cur->bc_ops->key_len / 2);
+ }
}
-/* Determine the low and high keys of a node block (overlapped) */
-void
-xfs_btree_get_node_keys_overlapped(
+/* Determine the low (and high if overlapped) keys of a node block */
+STATIC void
+xfs_btree_get_node_keys(
struct xfs_btree_cur *cur,
struct xfs_btree_block *block,
union xfs_btree_key *key)
{
- int n;
union xfs_btree_key *hkey;
union xfs_btree_key *max_hkey;
union xfs_btree_key *high;
+ int n;
- ASSERT(cur->bc_flags & XFS_BTREE_OVERLAPPING);
- memcpy(key, xfs_btree_key_addr(cur, 1, block),
- cur->bc_ops->key_len / 2);
-
- max_hkey = xfs_btree_high_key_addr(cur, 1, block);
- for (n = 2; n <= xfs_btree_get_numrecs(block); n++) {
- hkey = xfs_btree_high_key_addr(cur, n, block);
- if (cur->bc_ops->diff_two_keys(cur, hkey, max_hkey) > 0)
- max_hkey = hkey;
- }
+ if (cur->bc_flags & XFS_BTREE_OVERLAPPING) {
+ memcpy(key, xfs_btree_key_addr(cur, 1, block),
+ cur->bc_ops->key_len / 2);
+
+ max_hkey = xfs_btree_high_key_addr(cur, 1, block);
+ for (n = 2; n <= xfs_btree_get_numrecs(block); n++) {
+ hkey = xfs_btree_high_key_addr(cur, n, block);
+ if (cur->bc_ops->diff_two_keys(cur, hkey, max_hkey) > 0)
+ max_hkey = hkey;
+ }
- high = xfs_btree_high_key_from_key(cur, key);
- memcpy(high, max_hkey, cur->bc_ops->key_len / 2);
+ high = xfs_btree_high_key_from_key(cur, key);
+ memcpy(high, max_hkey, cur->bc_ops->key_len / 2);
+ } else {
+ memcpy(key, xfs_btree_key_addr(cur, 1, block),
+ cur->bc_ops->key_len);
+ }
}
/* Derive the keys for any btree block. */
union xfs_btree_key *key)
{
if (be16_to_cpu(block->bb_level) == 0)
- cur->bc_ops->get_leaf_keys(cur, block, key);
+ xfs_btree_get_leaf_keys(cur, block, key);
else
- cur->bc_ops->get_node_keys(cur, block, key);
+ xfs_btree_get_node_keys(cur, block, key);
}
/*
xfs_btree_log_keys(cur, bp, ptr, ptr);
if (level + 1 >= cur->bc_nlevels)
break;
- cur->bc_ops->get_node_keys(cur, block, lkey);
+ xfs_btree_get_node_keys(cur, block, lkey);
}
return 0;
}
-/*
- * Update all the keys from some level in cursor back to the root, stopping
- * when we find a key pair that don't need updating.
- */
-int
-xfs_btree_update_keys_overlapped(
- struct xfs_btree_cur *cur,
- int level)
-{
- struct xfs_buf *bp;
- struct xfs_btree_block *block;
-
- block = xfs_btree_get_block(cur, level, &bp);
- return __xfs_btree_updkeys(cur, level, block, bp, false);
-}
-
/* Update all the keys from some level in cursor back to the root. */
STATIC int
xfs_btree_updkeys_force(
/*
* Update the parent keys of the given level, progressing towards the root.
*/
-int
+STATIC int
xfs_btree_update_keys(
struct xfs_btree_cur *cur,
int level)
union xfs_btree_key key;
int ptr;
- ASSERT(!(cur->bc_flags & XFS_BTREE_OVERLAPPING));
+ ASSERT(level >= 0);
+
+ block = xfs_btree_get_block(cur, level, &bp);
+ if (cur->bc_flags & XFS_BTREE_OVERLAPPING)
+ return __xfs_btree_updkeys(cur, level, block, bp, false);
XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
XFS_BTREE_TRACE_ARGIK(cur, level, keyp);
- ASSERT(level >= 0);
-
/*
* Go up the tree from this level toward the root.
* At each level, update the key value to the value input.
* Stop when we reach a level where the cursor isn't pointing
* at the first entry in the block.
*/
- block = xfs_btree_get_block(cur, level, &bp);
xfs_btree_get_keys(cur, block, &key);
for (level++, ptr = 1; ptr == 1 && level < cur->bc_nlevels; level++) {
#ifdef DEBUG
/* Pass new key value up to our parent. */
if (xfs_btree_needs_key_update(cur, ptr)) {
- error = cur->bc_ops->update_keys(cur, 0);
+ error = xfs_btree_update_keys(cur, 0);
if (error)
goto error0;
}
goto error1;
/* Update the parent keys of the right block. */
- error = cur->bc_ops->update_keys(cur, level);
+ error = xfs_btree_update_keys(cur, level);
if (error)
goto error1;
/* Update the parent high keys of the left block, if needed. */
if (tcur->bc_flags & XFS_BTREE_OVERLAPPING) {
- error = tcur->bc_ops->update_keys(tcur, level);
+ error = xfs_btree_update_keys(tcur, level);
if (error)
goto error1;
}
/* Update the parent high keys of the left block, if needed. */
if (cur->bc_flags & XFS_BTREE_OVERLAPPING) {
- error = cur->bc_ops->update_keys(cur, level);
+ error = xfs_btree_update_keys(cur, level);
if (error)
goto error1;
}
/* Update the parent keys of the right block. */
- error = cur->bc_ops->update_keys(tcur, level);
+ error = xfs_btree_update_keys(tcur, level);
if (error)
goto error1;
xfs_btree_log_ptrs(cur, rbp, 1, rrecs);
/* Stash the keys of the new block for later insertion. */
- cur->bc_ops->get_node_keys(cur, right, key);
+ xfs_btree_get_node_keys(cur, right, key);
} else {
/* It's a leaf. Move records. */
union xfs_btree_rec *lrp; /* left record pointer */
xfs_btree_log_recs(cur, rbp, 1, rrecs);
/* Stash the keys of the new block for later insertion. */
- cur->bc_ops->get_leaf_keys(cur, right, key);
+ xfs_btree_get_leaf_keys(cur, right, key);
}
/*
/* Update the parent high keys of the left block, if needed. */
if (cur->bc_flags & XFS_BTREE_OVERLAPPING) {
- error = cur->bc_ops->update_keys(cur, level);
+ error = xfs_btree_update_keys(cur, level);
if (error)
goto error0;
}
* Get the keys for the left block's keys and put them directly
* in the parent block. Do the same for the right block.
*/
- cur->bc_ops->get_node_keys(cur, left,
+ xfs_btree_get_node_keys(cur, left,
xfs_btree_key_addr(cur, 1, new));
- cur->bc_ops->get_node_keys(cur, right,
+ xfs_btree_get_node_keys(cur, right,
xfs_btree_key_addr(cur, 2, new));
} else {
/*
* directly in the parent block. Do the same for the right
* block.
*/
- cur->bc_ops->get_leaf_keys(cur, left,
+ xfs_btree_get_leaf_keys(cur, left,
xfs_btree_key_addr(cur, 1, new));
- cur->bc_ops->get_leaf_keys(cur, right,
+ xfs_btree_get_leaf_keys(cur, right,
xfs_btree_key_addr(cur, 2, new));
}
xfs_btree_log_keys(cur, nbp, 1, 2);
if (bp && bp->b_bn != old_bn) {
xfs_btree_get_keys(cur, block, lkey);
} else if (xfs_btree_needs_key_update(cur, optr)) {
- error = cur->bc_ops->update_keys(cur, level);
+ error = xfs_btree_update_keys(cur, level);
if (error)
goto error0;
}
* key values above us in the tree.
*/
if (xfs_btree_needs_key_update(cur, ptr)) {
- error = cur->bc_ops->update_keys(cur, level);
+ error = xfs_btree_update_keys(cur, level);
if (error)
goto error0;
}