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Diffstat (limited to 'fs/btrfs/ctree.c')
-rw-r--r--fs/btrfs/ctree.c52
1 files changed, 26 insertions, 26 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index f6f7a6af0357..7fad2e3ad6ff 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1587,8 +1587,8 @@ cow_done:
btrfs_tree_lock(b);
} else {
p->slots[level] = slot;
- if (ins_len > 0 && btrfs_leaf_free_space(root, b) <
- sizeof(struct btrfs_item) + ins_len) {
+ if (ins_len > 0 &&
+ btrfs_leaf_free_space(root, b) < ins_len) {
int sret = split_leaf(trans, root, key,
p, ins_len, ret == 0);
BUG_ON(sret > 0);
@@ -2231,7 +2231,7 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
right = read_node_slot(root, upper, slot + 1);
btrfs_tree_lock(right);
free_space = btrfs_leaf_free_space(root, right);
- if (free_space < data_size + sizeof(struct btrfs_item))
+ if (free_space < data_size)
goto out_unlock;
/* cow and double check */
@@ -2241,7 +2241,7 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
goto out_unlock;
free_space = btrfs_leaf_free_space(root, right);
- if (free_space < data_size + sizeof(struct btrfs_item))
+ if (free_space < data_size)
goto out_unlock;
left_nritems = btrfs_header_nritems(left);
@@ -2254,7 +2254,7 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
nr = 1;
if (path->slots[0] >= left_nritems)
- push_space += data_size + sizeof(*item);
+ push_space += data_size;
i = left_nritems - 1;
while (i >= nr) {
@@ -2271,7 +2271,7 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
}
if (path->slots[0] == i)
- push_space += data_size + sizeof(*item);
+ push_space += data_size;
if (!left->map_token) {
map_extent_buffer(left, (unsigned long)item,
@@ -2427,7 +2427,7 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
left = read_node_slot(root, path->nodes[1], slot - 1);
btrfs_tree_lock(left);
free_space = btrfs_leaf_free_space(root, left);
- if (free_space < data_size + sizeof(struct btrfs_item)) {
+ if (free_space < data_size) {
ret = 1;
goto out;
}
@@ -2442,7 +2442,7 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
}
free_space = btrfs_leaf_free_space(root, left);
- if (free_space < data_size + sizeof(struct btrfs_item)) {
+ if (free_space < data_size) {
ret = 1;
goto out;
}
@@ -2473,7 +2473,7 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
}
if (path->slots[0] == i)
- push_space += data_size + sizeof(*item);
+ push_space += data_size;
this_item_size = btrfs_item_size(right, item);
if (this_item_size + sizeof(*item) + push_space > free_space)
@@ -2510,7 +2510,7 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
btrfs_item_offset_nr(right, push_items - 1),
push_space);
old_left_nritems = btrfs_header_nritems(left);
- BUG_ON(old_left_nritems < 0);
+ BUG_ON(old_left_nritems <= 0);
old_left_item_size = btrfs_item_offset_nr(left, old_left_nritems - 1);
for (i = old_left_nritems; i < old_left_nritems + push_items; i++) {
@@ -2628,7 +2628,6 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
int mid;
int slot;
struct extent_buffer *right;
- int space_needed = data_size + sizeof(struct btrfs_item);
int data_copy_size;
int rt_data_off;
int i;
@@ -2638,9 +2637,6 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
int num_doubles = 0;
struct btrfs_disk_key disk_key;
- if (extend && data_size)
- space_needed = data_size;
-
/* first try to make some room by pushing left and right */
if (data_size && ins_key->type != BTRFS_DIR_ITEM_KEY) {
wret = push_leaf_right(trans, root, path, data_size, 0);
@@ -2655,7 +2651,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
l = path->nodes[0];
/* did the pushes work? */
- if (btrfs_leaf_free_space(root, l) >= space_needed)
+ if (btrfs_leaf_free_space(root, l) >= data_size)
return 0;
}
@@ -2694,7 +2690,7 @@ again:
BTRFS_UUID_SIZE);
if (mid <= slot) {
if (nritems == 1 ||
- leaf_space_used(l, mid, nritems - mid) + space_needed >
+ leaf_space_used(l, mid, nritems - mid) + data_size >
BTRFS_LEAF_DATA_SIZE(root)) {
if (slot >= nritems) {
btrfs_cpu_key_to_disk(&disk_key, ins_key);
@@ -2716,12 +2712,12 @@ again:
mid = slot;
if (mid != nritems &&
leaf_space_used(l, mid, nritems - mid) +
- space_needed > BTRFS_LEAF_DATA_SIZE(root)) {
+ data_size > BTRFS_LEAF_DATA_SIZE(root)) {
double_split = 1;
}
}
} else {
- if (leaf_space_used(l, 0, mid + 1) + space_needed >
+ if (leaf_space_used(l, 0, mid) + data_size >
BTRFS_LEAF_DATA_SIZE(root)) {
if (!extend && data_size && slot == 0) {
btrfs_cpu_key_to_disk(&disk_key, ins_key);
@@ -2750,7 +2746,7 @@ again:
mid = slot;
if (mid != nritems &&
leaf_space_used(l, mid, nritems - mid) +
- space_needed > BTRFS_LEAF_DATA_SIZE(root)) {
+ data_size > BTRFS_LEAF_DATA_SIZE(root)) {
double_split = 1;
}
}
@@ -2883,7 +2879,8 @@ int btrfs_split_item(struct btrfs_trans_handle *trans,
return -EAGAIN;
}
- ret = split_leaf(trans, root, &orig_key, path, 0, 0);
+ ret = split_leaf(trans, root, &orig_key, path,
+ sizeof(struct btrfs_item), 1);
path->keep_locks = 0;
BUG_ON(ret);
@@ -3169,14 +3166,17 @@ int btrfs_insert_some_items(struct btrfs_trans_handle *trans,
struct btrfs_disk_key disk_key;
struct btrfs_key found_key;
- found_key.objectid = 0;
- nr = min_t(int, nr, BTRFS_NODEPTRS_PER_BLOCK(root));
-
- for (i = 0; i < nr; i++)
+ for (i = 0; i < nr; i++) {
+ if (total_size + data_size[i] + sizeof(struct btrfs_item) >
+ BTRFS_LEAF_DATA_SIZE(root)) {
+ break;
+ nr = i;
+ }
total_data += data_size[i];
+ total_size += data_size[i] + sizeof(struct btrfs_item);
+ }
+ BUG_ON(nr == 0);
- total_data = min_t(u32, total_data, BTRFS_LEAF_DATA_SIZE(root));
- total_size = total_data + (nr * sizeof(struct btrfs_item));
ret = btrfs_search_slot(trans, root, cpu_key, path, total_size, 1);
if (ret == 0)
return -EEXIST;
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-27 12:09:57 +0000