summaryrefslogtreecommitdiff
path: root/fs/nilfs2/btree.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nilfs2/btree.c')
-rw-r--r--fs/nilfs2/btree.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 18bb965c66b5..c0266f7f0b26 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -473,7 +473,7 @@ static int nilfs_btree_do_lookup(const struct nilfs_bmap *btree,
{
struct nilfs_btree_node *node;
__u64 ptr;
- int level, index, found, ret;
+ int level, index, found, ncmax, ret;
node = nilfs_btree_get_root(btree);
level = nilfs_btree_node_get_level(node);
@@ -485,6 +485,8 @@ static int nilfs_btree_do_lookup(const struct nilfs_bmap *btree,
path[level].bp_bh = NULL;
path[level].bp_index = index;
+ ncmax = NILFS_BTREE_NODE_NCHILDREN_MAX(nilfs_btree_node_size(btree));
+
for (level--; level >= minlevel; level--) {
ret = nilfs_btree_get_block(btree, ptr, &path[level].bp_bh);
if (ret < 0)
@@ -496,9 +498,9 @@ static int nilfs_btree_do_lookup(const struct nilfs_bmap *btree,
found = nilfs_btree_node_lookup(node, key, &index);
else
index = 0;
- if (index < nilfs_btree_node_nchildren_max(node, btree))
+ if (index < ncmax) {
ptr = nilfs_btree_node_get_ptr(btree, node, index);
- else {
+ } else {
WARN_ON(found || level != NILFS_BTREE_LEVEL_NODE_MIN);
/* insert */
ptr = NILFS_BMAP_INVALID_PTR;
@@ -921,7 +923,7 @@ static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
struct buffer_head *bh;
struct nilfs_btree_node *node, *parent, *sib;
__u64 sibptr;
- int pindex, level, ret;
+ int pindex, level, ncmax, ret;
struct inode *dat = NULL;
stats->bs_nblocks = 0;
@@ -938,12 +940,13 @@ static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
if (ret < 0)
goto err_out_data;
+ ncmax = NILFS_BTREE_NODE_NCHILDREN_MAX(nilfs_btree_node_size(btree));
+
for (level = NILFS_BTREE_LEVEL_NODE_MIN;
level < nilfs_btree_height(btree) - 1;
level++) {
node = nilfs_btree_get_nonroot_node(path, level);
- if (nilfs_btree_node_get_nchildren(node) <
- nilfs_btree_node_nchildren_max(node, btree)) {
+ if (nilfs_btree_node_get_nchildren(node) < ncmax) {
path[level].bp_op = nilfs_btree_do_insert;
stats->bs_nblocks++;
goto out;
@@ -960,8 +963,7 @@ static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
if (ret < 0)
goto err_out_child_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) <
- nilfs_btree_node_nchildren_max(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) < ncmax) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_carry_left;
stats->bs_nblocks++;
@@ -979,8 +981,7 @@ static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
if (ret < 0)
goto err_out_child_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) <
- nilfs_btree_node_nchildren_max(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) < ncmax) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_carry_right;
stats->bs_nblocks++;
@@ -1014,7 +1015,7 @@ static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
/* root */
node = nilfs_btree_get_root(btree);
if (nilfs_btree_node_get_nchildren(node) <
- nilfs_btree_node_nchildren_max(node, btree)) {
+ NILFS_BTREE_ROOT_NCHILDREN_MAX) {
path[level].bp_op = nilfs_btree_do_insert;
stats->bs_nblocks++;
goto out;
@@ -1281,10 +1282,12 @@ static int nilfs_btree_prepare_delete(struct nilfs_bmap *btree,
struct buffer_head *bh;
struct nilfs_btree_node *node, *parent, *sib;
__u64 sibptr;
- int pindex, level, ret;
+ int pindex, level, ncmin, ret;
ret = 0;
stats->bs_nblocks = 0;
+ ncmin = NILFS_BTREE_NODE_NCHILDREN_MIN(nilfs_btree_node_size(btree));
+
for (level = NILFS_BTREE_LEVEL_NODE_MIN;
level < nilfs_btree_height(btree) - 1;
level++) {
@@ -1297,8 +1300,7 @@ static int nilfs_btree_prepare_delete(struct nilfs_bmap *btree,
if (ret < 0)
goto err_out_child_node;
- if (nilfs_btree_node_get_nchildren(node) >
- nilfs_btree_node_nchildren_min(node, btree)) {
+ if (nilfs_btree_node_get_nchildren(node) > ncmin) {
path[level].bp_op = nilfs_btree_do_delete;
stats->bs_nblocks++;
goto out;
@@ -1315,8 +1317,7 @@ static int nilfs_btree_prepare_delete(struct nilfs_bmap *btree,
if (ret < 0)
goto err_out_curr_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) >
- nilfs_btree_node_nchildren_min(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) > ncmin) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_borrow_left;
stats->bs_nblocks++;
@@ -1336,8 +1337,7 @@ static int nilfs_btree_prepare_delete(struct nilfs_bmap *btree,
if (ret < 0)
goto err_out_curr_node;
sib = (struct nilfs_btree_node *)bh->b_data;
- if (nilfs_btree_node_get_nchildren(sib) >
- nilfs_btree_node_nchildren_min(sib, btree)) {
+ if (nilfs_btree_node_get_nchildren(sib) > ncmin) {
path[level].bp_sib_bh = bh;
path[level].bp_op = nilfs_btree_borrow_right;
stats->bs_nblocks++;