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Diffstat (limited to 'fs/btrfs/ctree.c')
-rw-r--r--fs/btrfs/ctree.c70
1 files changed, 36 insertions, 34 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 993642199326..0f11ebc92f02 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -578,7 +578,7 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info,
if (!tree_mod_need_log(fs_info, eb))
return 0;
- tm_list = kzalloc(nr_items * sizeof(struct tree_mod_elem *), flags);
+ tm_list = kcalloc(nr_items, sizeof(struct tree_mod_elem *), flags);
if (!tm_list)
return -ENOMEM;
@@ -677,7 +677,7 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info,
if (log_removal && btrfs_header_level(old_root) > 0) {
nritems = btrfs_header_nritems(old_root);
- tm_list = kzalloc(nritems * sizeof(struct tree_mod_elem *),
+ tm_list = kcalloc(nritems, sizeof(struct tree_mod_elem *),
flags);
if (!tm_list) {
ret = -ENOMEM;
@@ -814,7 +814,7 @@ tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
if (btrfs_header_level(dst) == 0 && btrfs_header_level(src) == 0)
return 0;
- tm_list = kzalloc(nr_items * 2 * sizeof(struct tree_mod_elem *),
+ tm_list = kcalloc(nr_items * 2, sizeof(struct tree_mod_elem *),
GFP_NOFS);
if (!tm_list)
return -ENOMEM;
@@ -905,8 +905,7 @@ tree_mod_log_free_eb(struct btrfs_fs_info *fs_info, struct extent_buffer *eb)
return 0;
nritems = btrfs_header_nritems(eb);
- tm_list = kzalloc(nritems * sizeof(struct tree_mod_elem *),
- GFP_NOFS);
+ tm_list = kcalloc(nritems, sizeof(struct tree_mod_elem *), GFP_NOFS);
if (!tm_list)
return -ENOMEM;
@@ -1073,7 +1072,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans,
ret = btrfs_dec_ref(trans, root, buf, 1);
BUG_ON(ret); /* -ENOMEM */
}
- clean_tree_block(trans, root, buf);
+ clean_tree_block(trans, root->fs_info, buf);
*last_ref = 1;
}
return 0;
@@ -1645,14 +1644,14 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
parent_nritems = btrfs_header_nritems(parent);
blocksize = root->nodesize;
- end_slot = parent_nritems;
+ end_slot = parent_nritems - 1;
- if (parent_nritems == 1)
+ if (parent_nritems <= 1)
return 0;
btrfs_set_lock_blocking(parent);
- for (i = start_slot; i < end_slot; i++) {
+ for (i = start_slot; i <= end_slot; i++) {
int close = 1;
btrfs_node_key(parent, &disk_key, i);
@@ -1669,7 +1668,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
other = btrfs_node_blockptr(parent, i - 1);
close = close_blocks(blocknr, other, blocksize);
}
- if (!close && i < end_slot - 2) {
+ if (!close && i < end_slot) {
other = btrfs_node_blockptr(parent, i + 1);
close = close_blocks(blocknr, other, blocksize);
}
@@ -1678,7 +1677,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
continue;
}
- cur = btrfs_find_tree_block(root, blocknr);
+ cur = btrfs_find_tree_block(root->fs_info, blocknr);
if (cur)
uptodate = btrfs_buffer_uptodate(cur, gen, 0);
else
@@ -1943,7 +1942,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
path->locks[level] = 0;
path->nodes[level] = NULL;
- clean_tree_block(trans, root, mid);
+ clean_tree_block(trans, root->fs_info, mid);
btrfs_tree_unlock(mid);
/* once for the path */
free_extent_buffer(mid);
@@ -1997,7 +1996,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
if (wret < 0 && wret != -ENOSPC)
ret = wret;
if (btrfs_header_nritems(right) == 0) {
- clean_tree_block(trans, root, right);
+ clean_tree_block(trans, root->fs_info, right);
btrfs_tree_unlock(right);
del_ptr(root, path, level + 1, pslot + 1);
root_sub_used(root, right->len);
@@ -2041,7 +2040,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
BUG_ON(wret == 1);
}
if (btrfs_header_nritems(mid) == 0) {
- clean_tree_block(trans, root, mid);
+ clean_tree_block(trans, root->fs_info, mid);
btrfs_tree_unlock(mid);
del_ptr(root, path, level + 1, pslot);
root_sub_used(root, mid->len);
@@ -2259,7 +2258,7 @@ static void reada_for_search(struct btrfs_root *root,
search = btrfs_node_blockptr(node, slot);
blocksize = root->nodesize;
- eb = btrfs_find_tree_block(root, search);
+ eb = btrfs_find_tree_block(root->fs_info, search);
if (eb) {
free_extent_buffer(eb);
return;
@@ -2319,7 +2318,7 @@ static noinline void reada_for_balance(struct btrfs_root *root,
if (slot > 0) {
block1 = btrfs_node_blockptr(parent, slot - 1);
gen = btrfs_node_ptr_generation(parent, slot - 1);
- eb = btrfs_find_tree_block(root, block1);
+ eb = btrfs_find_tree_block(root->fs_info, block1);
/*
* if we get -eagain from btrfs_buffer_uptodate, we
* don't want to return eagain here. That will loop
@@ -2332,7 +2331,7 @@ static noinline void reada_for_balance(struct btrfs_root *root,
if (slot + 1 < nritems) {
block2 = btrfs_node_blockptr(parent, slot + 1);
gen = btrfs_node_ptr_generation(parent, slot + 1);
- eb = btrfs_find_tree_block(root, block2);
+ eb = btrfs_find_tree_block(root->fs_info, block2);
if (eb && btrfs_buffer_uptodate(eb, gen, 1) != 0)
block2 = 0;
free_extent_buffer(eb);
@@ -2450,7 +2449,7 @@ read_block_for_search(struct btrfs_trans_handle *trans,
blocknr = btrfs_node_blockptr(b, slot);
gen = btrfs_node_ptr_generation(b, slot);
- tmp = btrfs_find_tree_block(root, blocknr);
+ tmp = btrfs_find_tree_block(root->fs_info, blocknr);
if (tmp) {
/* first we do an atomic uptodate check */
if (btrfs_buffer_uptodate(tmp, gen, 1) > 0) {
@@ -3126,7 +3125,8 @@ again:
* higher levels
*
*/
-static void fixup_low_keys(struct btrfs_root *root, struct btrfs_path *path,
+static void fixup_low_keys(struct btrfs_fs_info *fs_info,
+ struct btrfs_path *path,
struct btrfs_disk_key *key, int level)
{
int i;
@@ -3137,7 +3137,7 @@ static void fixup_low_keys(struct btrfs_root *root, struct btrfs_path *path,
if (!path->nodes[i])
break;
t = path->nodes[i];
- tree_mod_log_set_node_key(root->fs_info, t, tslot, 1);
+ tree_mod_log_set_node_key(fs_info, t, tslot, 1);
btrfs_set_node_key(t, key, tslot);
btrfs_mark_buffer_dirty(path->nodes[i]);
if (tslot != 0)
@@ -3151,7 +3151,8 @@ static void fixup_low_keys(struct btrfs_root *root, struct btrfs_path *path,
* This function isn't completely safe. It's the caller's responsibility
* that the new key won't break the order
*/
-void btrfs_set_item_key_safe(struct btrfs_root *root, struct btrfs_path *path,
+void btrfs_set_item_key_safe(struct btrfs_fs_info *fs_info,
+ struct btrfs_path *path,
struct btrfs_key *new_key)
{
struct btrfs_disk_key disk_key;
@@ -3173,7 +3174,7 @@ void btrfs_set_item_key_safe(struct btrfs_root *root, struct btrfs_path *path,
btrfs_set_item_key(eb, &disk_key, slot);
btrfs_mark_buffer_dirty(eb);
if (slot == 0)
- fixup_low_keys(root, path, &disk_key, 1);
+ fixup_low_keys(fs_info, path, &disk_key, 1);
}
/*
@@ -3692,7 +3693,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
if (left_nritems)
btrfs_mark_buffer_dirty(left);
else
- clean_tree_block(trans, root, left);
+ clean_tree_block(trans, root->fs_info, left);
btrfs_mark_buffer_dirty(right);
@@ -3704,7 +3705,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
if (path->slots[0] >= left_nritems) {
path->slots[0] -= left_nritems;
if (btrfs_header_nritems(path->nodes[0]) == 0)
- clean_tree_block(trans, root, path->nodes[0]);
+ clean_tree_block(trans, root->fs_info, path->nodes[0]);
btrfs_tree_unlock(path->nodes[0]);
free_extent_buffer(path->nodes[0]);
path->nodes[0] = right;
@@ -3928,10 +3929,10 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
if (right_nritems)
btrfs_mark_buffer_dirty(right);
else
- clean_tree_block(trans, root, right);
+ clean_tree_block(trans, root->fs_info, right);
btrfs_item_key(right, &disk_key, 0);
- fixup_low_keys(root, path, &disk_key, 1);
+ fixup_low_keys(root->fs_info, path, &disk_key, 1);
/* then fixup the leaf pointer in the path */
if (path->slots[0] < push_items) {
@@ -4168,6 +4169,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
int mid;
int slot;
struct extent_buffer *right;
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret = 0;
int wret;
int split;
@@ -4271,10 +4273,10 @@ again:
btrfs_set_header_backref_rev(right, BTRFS_MIXED_BACKREF_REV);
btrfs_set_header_owner(right, root->root_key.objectid);
btrfs_set_header_level(right, 0);
- write_extent_buffer(right, root->fs_info->fsid,
+ write_extent_buffer(right, fs_info->fsid,
btrfs_header_fsid(), BTRFS_FSID_SIZE);
- write_extent_buffer(right, root->fs_info->chunk_tree_uuid,
+ write_extent_buffer(right, fs_info->chunk_tree_uuid,
btrfs_header_chunk_tree_uuid(right),
BTRFS_UUID_SIZE);
@@ -4297,7 +4299,7 @@ again:
path->nodes[0] = right;
path->slots[0] = 0;
if (path->slots[1] == 0)
- fixup_low_keys(root, path, &disk_key, 1);
+ fixup_low_keys(fs_info, path, &disk_key, 1);
}
btrfs_mark_buffer_dirty(right);
return ret;
@@ -4615,7 +4617,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
btrfs_set_disk_key_offset(&disk_key, offset + size_diff);
btrfs_set_item_key(leaf, &disk_key, slot);
if (slot == 0)
- fixup_low_keys(root, path, &disk_key, 1);
+ fixup_low_keys(root->fs_info, path, &disk_key, 1);
}
item = btrfs_item_nr(slot);
@@ -4716,7 +4718,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
if (path->slots[0] == 0) {
btrfs_cpu_key_to_disk(&disk_key, cpu_key);
- fixup_low_keys(root, path, &disk_key, 1);
+ fixup_low_keys(root->fs_info, path, &disk_key, 1);
}
btrfs_unlock_up_safe(path, 1);
@@ -4888,7 +4890,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path,
struct btrfs_disk_key disk_key;
btrfs_node_key(parent, &disk_key, 0);
- fixup_low_keys(root, path, &disk_key, level + 1);
+ fixup_low_keys(root->fs_info, path, &disk_key, level + 1);
}
btrfs_mark_buffer_dirty(parent);
}
@@ -4981,7 +4983,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
btrfs_set_header_level(leaf, 0);
} else {
btrfs_set_path_blocking(path);
- clean_tree_block(trans, root, leaf);
+ clean_tree_block(trans, root->fs_info, leaf);
btrfs_del_leaf(trans, root, path, leaf);
}
} else {
@@ -4990,7 +4992,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
struct btrfs_disk_key disk_key;
btrfs_item_key(leaf, &disk_key, 0);
- fixup_low_keys(root, path, &disk_key, 1);
+ fixup_low_keys(root->fs_info, path, &disk_key, 1);
}
/* delete the leaf if it is mostly empty */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-28 04:58:31 +0300