RepoMirrors/btrfs-progs
1
0
Fork 0
mirror of https://github.com/kdave/btrfs-progs synced 2024-12-26 08:02:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

btrfs-progs: add btrfs_set_item_*_nr() helpers

Browse Source 
We have a lot of the following patterns

	item = btrfs_item_nr(nr);
	btrfs_set_item_*(eb, item, val);

	btrfs_set_item_*(eb, btrfs_item_nr(nr), val);

in a lot of places in our code.  Instead add _nr variations of these
helpers and convert all of the users to this new helper.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2022-02-22 17:26:17 -05:00 committed by David Sterba
parent 80ff3f2c8e
commit 04ffea07e4
7 changed files with 74 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
btrfs-corrupt-block.c
View File

@ -838,7 +838,7 @@ static void shift_items(struct btrfs_root *root, struct extent_buffer *eb)
for (i = nritems - 1; i >= slot; i--) {
u32 offset = btrfs_item_offset_nr(eb, i);
offset -= shift_space;
btrfs_set_item_offset(eb, btrfs_item_nr(i), offset);
btrfs_set_item_offset_nr(eb, i, offset);
}
}
@ -980,8 +980,7 @@ static int corrupt_btrfs_item(struct btrfs_root *root, struct btrfs_key *key,
case BTRFS_ITEM_OFFSET:
orig = btrfs_item_offset_nr(path->nodes[0], path->slots[0]);
bogus = generate_u32(orig);
btrfs_set_item_offset(path->nodes[0],
btrfs_item_nr(path->slots[0]), bogus);
btrfs_set_item_offset_nr(path->nodes[0], path->slots[0], bogus);
break;
default:
ret = -EINVAL;

14
check/main.c
View File

@ -4213,13 +4213,10 @@ static int swap_values(struct btrfs_root *root, struct btrfs_path *path,
btrfs_fixup_low_keys(path, &key, btrfs_header_level(buf) + 1);
}
} else {
struct btrfs_item *item1, *item2;
struct btrfs_key k1, k2;
char *item1_data, *item2_data;
u32 item1_offset, item2_offset, item1_size, item2_size;
item1 = btrfs_item_nr(slot);
item2 = btrfs_item_nr(slot + 1);
btrfs_item_key_to_cpu(buf, &k1, slot);
btrfs_item_key_to_cpu(buf, &k2, slot + 1);
item1_offset = btrfs_item_offset_nr(buf, slot);
@ -4244,10 +4241,10 @@ static int swap_values(struct btrfs_root *root, struct btrfs_path *path,
free(item1_data);
free(item2_data);
btrfs_set_item_offset(buf, item1, item2_offset);
btrfs_set_item_offset(buf, item2, item1_offset);
btrfs_set_item_size(buf, item1, item2_size);
btrfs_set_item_size(buf, item2, item1_size);
btrfs_set_item_offset_nr(buf, slot, item2_offset);
btrfs_set_item_offset_nr(buf, slot + 1, item1_offset);
btrfs_set_item_size_nr(buf, slot, item2_size);
btrfs_set_item_size_nr(buf, slot + 1, item1_size);
path->slots[0] = slot;
btrfs_set_item_key_unsafe(root, path, &k2);
@ -4371,8 +4368,7 @@ again:
btrfs_leaf_data(buf) + offset + shift,
btrfs_leaf_data(buf) + offset,
btrfs_item_size_nr(buf, i));
btrfs_set_item_offset(buf, btrfs_item_nr(i),
offset + shift);
btrfs_set_item_offset_nr(buf, i, offset + shift);
btrfs_mark_buffer_dirty(buf);
}

25
convert/common.c
View File

@ -204,8 +204,8 @@ static void insert_temp_root_item(struct extent_buffer *buf,
btrfs_set_disk_key_offset(&disk_key, 0);
btrfs_set_item_key(buf, &disk_key, *slot);
btrfs_set_item_offset(buf, btrfs_item_nr(*slot), *itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(*slot), sizeof(root_item));
btrfs_set_item_offset_nr(buf, *slot, *itemoff);
btrfs_set_item_size_nr(buf, *slot, sizeof(root_item));
write_extent_buffer(buf, &root_item,
btrfs_item_ptr_offset(buf, *slot),
sizeof(root_item));
@ -311,8 +311,8 @@ static int insert_temp_dev_item(int fd, struct extent_buffer *buf,
btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_ITEMS_OBJECTID);
btrfs_set_disk_key_offset(&disk_key, 1);
btrfs_set_item_key(buf, &disk_key, *slot);
btrfs_set_item_offset(buf, btrfs_item_nr(*slot), *itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(*slot), sizeof(*dev_item));
btrfs_set_item_offset_nr(buf, *slot, *itemoff);
btrfs_set_item_size_nr(buf, *slot, sizeof(*dev_item));
dev_item = btrfs_item_ptr(buf, *slot, struct btrfs_dev_item);
/* Generate device uuid */
@ -369,9 +369,8 @@ static int insert_temp_chunk_item(int fd, struct extent_buffer *buf,
btrfs_set_disk_key_objectid(&disk_key, BTRFS_FIRST_CHUNK_TREE_OBJECTID);
btrfs_set_disk_key_offset(&disk_key, start);
btrfs_set_item_key(buf, &disk_key, *slot);
btrfs_set_item_offset(buf, btrfs_item_nr(*slot), *itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(*slot),
btrfs_chunk_item_size(1));
btrfs_set_item_offset_nr(buf, *slot, *itemoff);
btrfs_set_item_size_nr(buf, *slot, btrfs_chunk_item_size(1));
chunk = btrfs_item_ptr(buf, *slot, struct btrfs_chunk);
btrfs_set_chunk_length(buf, chunk, len);
@ -472,8 +471,8 @@ static void insert_temp_dev_extent(struct extent_buffer *buf,
btrfs_set_disk_key_objectid(&disk_key, 1);
btrfs_set_disk_key_offset(&disk_key, start);
btrfs_set_item_key(buf, &disk_key, *slot);
btrfs_set_item_offset(buf, btrfs_item_nr(*slot), *itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(*slot), sizeof(*dev_extent));
btrfs_set_item_offset_nr(buf, *slot, *itemoff);
btrfs_set_item_size_nr(buf, *slot, sizeof(*dev_extent));
dev_extent = btrfs_item_ptr(buf, *slot, struct btrfs_dev_extent);
btrfs_set_dev_extent_chunk_objectid(buf, dev_extent,
@ -604,8 +603,8 @@ static int insert_temp_extent_item(int fd, struct extent_buffer *buf,
btrfs_set_disk_key_objectid(&disk_key, bytenr);
btrfs_set_item_key(buf, &disk_key, *slot);
btrfs_set_item_offset(buf, btrfs_item_nr(*slot), *itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(*slot), itemsize);
btrfs_set_item_offset_nr(buf, *slot, *itemoff);
btrfs_set_item_size_nr(buf, *slot, itemsize);
ei = btrfs_item_ptr(buf, *slot, struct btrfs_extent_item);
btrfs_set_extent_refs(buf, ei, 1);
@ -670,8 +669,8 @@ static void insert_temp_block_group(struct extent_buffer *buf,
btrfs_set_disk_key_objectid(&disk_key, bytenr);
btrfs_set_disk_key_offset(&disk_key, len);
btrfs_set_item_key(buf, &disk_key, *slot);
btrfs_set_item_offset(buf, btrfs_item_nr(*slot), *itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(*slot), sizeof(bgi));
btrfs_set_item_offset_nr(buf, *slot, *itemoff);
btrfs_set_item_size_nr(buf, *slot, sizeof(bgi));
btrfs_set_stack_block_group_flags(&bgi, flag);
btrfs_set_stack_block_group_used(&bgi, used);

7
image/main.c
View File

@ -1218,7 +1218,6 @@ static struct extent_buffer *alloc_dummy_eb(u64 bytenr, u32 size)
static void truncate_item(struct extent_buffer *eb, int slot, u32 new_size)
{
struct btrfs_item *item;
u32 nritems;
u32 old_size;
u32 old_data_start;
@ -1238,16 +1237,14 @@ static void truncate_item(struct extent_buffer *eb, int slot, u32 new_size)
for (i = slot; i < nritems; i++) {
u32 ioff;
item = btrfs_item_nr(i);
ioff = btrfs_item_offset_nr(eb, i);
btrfs_set_item_offset(eb, item, ioff + size_diff);
btrfs_set_item_offset_nr(eb, i, ioff + size_diff);
}
memmove_extent_buffer(eb, btrfs_leaf_data(eb) + data_end + size_diff,
btrfs_leaf_data(eb) + data_end,
old_data_start + new_size - data_end);
item = btrfs_item_nr(slot);
btrfs_set_item_size(eb, item, new_size);
btrfs_set_item_size_nr(eb, slot, new_size);
}
static int fixup_chunk_tree_block(struct mdrestore_struct *mdres,

72
kernel-shared/ctree.c
View File

@ -1982,7 +1982,6 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
int free_space;
int push_space = 0;
int push_items = 0;
struct btrfs_item *item;
u32 left_nritems;
u32 nr;
u32 right_nritems;
@ -2036,16 +2035,14 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
i = left_nritems - 1;
while (i >= nr) {
item = btrfs_item_nr(i);
if (path->slots[0] == i)
push_space += data_size + sizeof(*item);
push_space += data_size + sizeof(struct btrfs_item);
this_item_size = btrfs_item_size_nr(left, i);
if (this_item_size + sizeof(*item) + push_space > free_space)
if (this_item_size + sizeof(struct btrfs_item) + push_space > free_space)
break;
push_items++;
push_space += this_item_size + sizeof(*item);
push_space += this_item_size + sizeof(struct btrfs_item);
if (i == 0)
break;
i--;
@ -2091,9 +2088,8 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root
btrfs_set_header_nritems(right, right_nritems);
push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info);
for (i = 0; i < right_nritems; i++) {
item = btrfs_item_nr(i);
push_space -= btrfs_item_size_nr(right, i);
btrfs_set_item_offset(right, item, push_space);
btrfs_set_item_offset_nr(right, i, push_space);
}
left_nritems -= push_items;
@ -2135,7 +2131,6 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
int free_space;
int push_space = 0;
int push_items = 0;
struct btrfs_item *item;
u32 old_left_nritems;
u32 right_nritems;
u32 nr;
@ -2182,17 +2177,15 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
nr = right_nritems - 1;
for (i = 0; i < nr; i++) {
item = btrfs_item_nr(i);
if (path->slots[0] == i)
push_space += data_size + sizeof(*item);
push_space += data_size + sizeof(struct btrfs_item);
this_item_size = btrfs_item_size_nr(right, i);
if (this_item_size + sizeof(*item) + push_space > free_space)
if (this_item_size + sizeof(struct btrfs_item) + push_space > free_space)
break;
push_items++;
push_space += this_item_size + sizeof(*item);
push_space += this_item_size + sizeof(struct btrfs_item);
}
if (push_items == 0) {
@ -2223,9 +2216,8 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
for (i = old_left_nritems; i < old_left_nritems + push_items; i++) {
u32 ioff;
item = btrfs_item_nr(i);
ioff = btrfs_item_offset_nr(left, i);
btrfs_set_item_offset(left, item,
btrfs_set_item_offset_nr(left, i,
ioff - (BTRFS_LEAF_DATA_SIZE(root->fs_info) -
old_left_item_size));
}
@ -2255,9 +2247,8 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
btrfs_set_header_nritems(right, right_nritems);
push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info);
for (i = 0; i < right_nritems; i++) {
item = btrfs_item_nr(i);
push_space = push_space - btrfs_item_size_nr(right, i);
btrfs_set_item_offset(right, item, push_space);
btrfs_set_item_offset_nr(right, i, push_space);
}
btrfs_mark_buffer_dirty(left);
@ -2318,9 +2309,8 @@ static noinline int copy_for_split(struct btrfs_trans_handle *trans,
btrfs_item_end_nr(l, mid);
for (i = 0; i < nritems; i++) {
struct btrfs_item *item = btrfs_item_nr(i);
u32 ioff = btrfs_item_offset_nr(right, i);
btrfs_set_item_offset(right, item, ioff + rt_data_off);
btrfs_set_item_offset_nr(right, i, ioff + rt_data_off);
}
btrfs_set_header_nritems(l, mid);
@ -2537,8 +2527,6 @@ int btrfs_split_item(struct btrfs_trans_handle *trans,
u32 item_size;
struct extent_buffer *leaf;
struct btrfs_key orig_key;
struct btrfs_item *item;
struct btrfs_item *new_item;
int ret = 0;
int slot;
u32 nritems;
@ -2573,7 +2561,6 @@ int btrfs_split_item(struct btrfs_trans_handle *trans,
leaf = path->nodes[0];
split:
item = btrfs_item_nr(path->slots[0]);
orig_offset = btrfs_item_offset_nr(leaf, path->slots[0]);
item_size = btrfs_item_size_nr(leaf, path->slots[0]);
@ -2598,14 +2585,12 @@ split:
btrfs_cpu_key_to_disk(&disk_key, new_key);
btrfs_set_item_key(leaf, &disk_key, slot);
new_item = btrfs_item_nr(slot);
btrfs_set_item_offset_nr(leaf, slot, orig_offset);
btrfs_set_item_size_nr(leaf, slot, item_size - split_offset);
btrfs_set_item_offset(leaf, new_item, orig_offset);
btrfs_set_item_size(leaf, new_item, item_size - split_offset);
btrfs_set_item_offset(leaf, item,
orig_offset + item_size - split_offset);
btrfs_set_item_size(leaf, item, split_offset);
btrfs_set_item_offset_nr(leaf, path->slots[0],
orig_offset + item_size - split_offset);
btrfs_set_item_size_nr(leaf, path->slots[0], split_offset);
btrfs_set_header_nritems(leaf, nritems + 1);
@ -2634,7 +2619,6 @@ int btrfs_truncate_item(struct btrfs_path *path, u32 new_size, int from_end)
int ret = 0;
int slot;
struct extent_buffer *leaf;
struct btrfs_item *item;
u32 nritems;
unsigned int data_end;
unsigned int old_data_start;
@ -2665,9 +2649,8 @@ int btrfs_truncate_item(struct btrfs_path *path, u32 new_size, int from_end)
/* first correct the data pointers */
for (i = slot; i < nritems; i++) {
u32 ioff;
item = btrfs_item_nr(i);
ioff = btrfs_item_offset_nr(leaf, i);
btrfs_set_item_offset(leaf, item, ioff + size_diff);
btrfs_set_item_offset_nr(leaf, i, ioff + size_diff);
}
/* shift the data */
@ -2711,8 +2694,7 @@ int btrfs_truncate_item(struct btrfs_path *path, u32 new_size, int from_end)
btrfs_fixup_low_keys(path, &disk_key, 1);
}
item = btrfs_item_nr(slot);
btrfs_set_item_size(leaf, item, new_size);
btrfs_set_item_size_nr(leaf, slot, new_size);
btrfs_mark_buffer_dirty(leaf);
ret = 0;
@ -2729,7 +2711,6 @@ int btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
int ret = 0;
int slot;
struct extent_buffer *leaf;
struct btrfs_item *item;
u32 nritems;
unsigned int data_end;
unsigned int old_data;
@ -2761,9 +2742,8 @@ int btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
/* first correct the data pointers */
for (i = slot; i < nritems; i++) {
u32 ioff;
item = btrfs_item_nr(i);
ioff = btrfs_item_offset_nr(leaf, i);
btrfs_set_item_offset(leaf, item, ioff - data_size);
btrfs_set_item_offset_nr(leaf, i, ioff - data_size);
}
/* shift the data */
@ -2773,8 +2753,7 @@ int btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
data_end = old_data;
old_size = btrfs_item_size_nr(leaf, slot);
item = btrfs_item_nr(slot);
btrfs_set_item_size(leaf, item, old_size + data_size);
btrfs_set_item_size_nr(leaf, slot, old_size + data_size);
btrfs_mark_buffer_dirty(leaf);
ret = 0;
@ -2796,7 +2775,6 @@ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans,
int nr)
{
struct extent_buffer *leaf;
struct btrfs_item *item;
int ret = 0;
int slot;
int i;
@ -2853,9 +2831,8 @@ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans,
for (i = slot; i < nritems; i++) {
u32 ioff;
item = btrfs_item_nr(i);
ioff = btrfs_item_offset_nr(leaf, i);
btrfs_set_item_offset(leaf, item, ioff - total_data);
btrfs_set_item_offset_nr(leaf, i, ioff - total_data);
}
/* shift the items */
@ -2874,10 +2851,9 @@ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans,
for (i = 0; i < nr; i++) {
btrfs_cpu_key_to_disk(&disk_key, cpu_key + i);
btrfs_set_item_key(leaf, &disk_key, slot + i);
item = btrfs_item_nr(slot + i);
btrfs_set_item_offset(leaf, item, data_end - data_size[i]);
btrfs_set_item_offset_nr(leaf, slot + i, data_end - data_size[i]);
data_end -= data_size[i];
btrfs_set_item_size(leaf, item, data_size[i]);
btrfs_set_item_size_nr(leaf, slot + i, data_size[i]);
}
btrfs_set_header_nritems(leaf, nritems + nr);
btrfs_mark_buffer_dirty(leaf);
@ -3001,7 +2977,6 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
struct btrfs_path *path, int slot, int nr)
{
struct extent_buffer *leaf;
struct btrfs_item *item;
int last_off;
int dsize = 0;
int ret = 0;
@ -3028,9 +3003,8 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
for (i = slot + nr; i < nritems; i++) {
u32 ioff;
item = btrfs_item_nr(i);
ioff = btrfs_item_offset_nr(leaf, i);
btrfs_set_item_offset(leaf, item, ioff + dsize);
btrfs_set_item_offset_nr(leaf, i, ioff + dsize);
}
memmove_extent_buffer(leaf, btrfs_item_nr_offset(slot),

12
kernel-shared/ctree.h
View File

@ -2005,6 +2005,18 @@ static inline u32 btrfs_item_end_nr(struct extent_buffer *eb, int nr)
return btrfs_item_end(eb, btrfs_item_nr(nr));
}
static inline void btrfs_set_item_size_nr(struct extent_buffer *eb, int nr,
u32 size)
{
btrfs_set_item_size(eb, btrfs_item_nr(nr), size);
}
static inline void btrfs_set_item_offset_nr(struct extent_buffer *eb, int nr,
u32 offset)
{
btrfs_set_item_offset(eb, btrfs_item_nr(nr), offset);
}
static inline u32 btrfs_item_offset_nr(const struct extent_buffer *eb, int nr)
{
return btrfs_item_offset(eb, btrfs_item_nr(nr));

41
mkfs/common.c
View File

@ -104,9 +104,8 @@ static int btrfs_create_tree_root(int fd, struct btrfs_mkfs_config *cfg,
btrfs_set_disk_key_objectid(&disk_key,
reference_root_table[blk]);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems),
sizeof(root_item));
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, sizeof(root_item));
if (blk == MKFS_FS_TREE) {
time_t now = time(NULL);
@ -160,8 +159,8 @@ static int create_free_space_tree(int fd, struct btrfs_mkfs_config *cfg,
btrfs_set_disk_key_offset(&disk_key, group_size);
btrfs_set_disk_key_type(&disk_key, BTRFS_FREE_SPACE_INFO_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems), sizeof(*info));
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, sizeof(*info));
info = btrfs_item_ptr(buf, nritems, struct btrfs_free_space_info);
btrfs_set_free_space_extent_count(buf, info, 1);
@ -172,8 +171,8 @@ static int create_free_space_tree(int fd, struct btrfs_mkfs_config *cfg,
btrfs_set_disk_key_offset(&disk_key, group_start + group_size - free_start);
btrfs_set_disk_key_type(&disk_key, BTRFS_FREE_SPACE_EXTENT_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems), 0);
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, 0);
nritems++;
btrfs_set_header_bytenr(buf, cfg->blocks[MKFS_FREE_SPACE_TREE]);
@ -341,8 +340,8 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
btrfs_set_disk_key_offset(&disk_key, system_group_size);
btrfs_set_disk_key_type(&disk_key, BTRFS_BLOCK_GROUP_ITEM_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems), sizeof(*bg_item));
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, sizeof(*bg_item));
bg_item = btrfs_item_ptr(buf, nritems,
struct btrfs_block_group_item);
@ -387,10 +386,8 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
btrfs_set_disk_key_offset(&disk_key, cfg->nodesize);
}
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems),
itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems),
item_size);
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, item_size);
extent_item = btrfs_item_ptr(buf, nritems,
struct btrfs_extent_item);
btrfs_set_extent_refs(buf, extent_item, 1);
@ -405,9 +402,8 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
btrfs_set_disk_key_offset(&disk_key, ref_root);
btrfs_set_disk_key_type(&disk_key, BTRFS_TREE_BLOCK_REF_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems),
itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems), 0);
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, 0);
nritems++;
}
btrfs_set_header_bytenr(buf, cfg->blocks[MKFS_EXTENT_TREE]);
@ -434,8 +430,8 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
btrfs_set_disk_key_offset(&disk_key, 1);
btrfs_set_disk_key_type(&disk_key, BTRFS_DEV_ITEM_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems), item_size);
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, item_size);
dev_item = btrfs_item_ptr(buf, nritems, struct btrfs_dev_item);
btrfs_set_device_id(buf, dev_item, 1);
@ -465,8 +461,8 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
btrfs_set_disk_key_offset(&disk_key, system_group_offset);
btrfs_set_disk_key_type(&disk_key, BTRFS_CHUNK_ITEM_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems), item_size);
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, item_size);
chunk = btrfs_item_ptr(buf, nritems, struct btrfs_chunk);
btrfs_set_chunk_length(buf, chunk, system_group_size);
@ -521,9 +517,8 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
btrfs_set_disk_key_offset(&disk_key, system_group_offset);
btrfs_set_disk_key_type(&disk_key, BTRFS_DEV_EXTENT_KEY);
btrfs_set_item_key(buf, &disk_key, nritems);
btrfs_set_item_offset(buf, btrfs_item_nr(nritems), itemoff);
btrfs_set_item_size(buf, btrfs_item_nr(nritems),
sizeof(struct btrfs_dev_extent));
btrfs_set_item_offset_nr(buf, nritems, itemoff);
btrfs_set_item_size_nr(buf, nritems, sizeof(struct btrfs_dev_extent));
dev_extent = btrfs_item_ptr(buf, nritems, struct btrfs_dev_extent);
btrfs_set_dev_extent_chunk_tree(buf, dev_extent,
BTRFS_CHUNK_TREE_OBJECTID);