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btrfs-progs: docs: add section about filesystem limits to btrfs(5)
[platform/upstream/btrfs-progs.git]
/
btrfs-corrupt-block.c
diff --git
a/btrfs-corrupt-block.c
b/btrfs-corrupt-block.c
index
20a4c1d
..
59ee1b4
100644
(file)
--- a/
btrfs-corrupt-block.c
+++ b/
btrfs-corrupt-block.c
@@
-47,9
+47,8
@@
static int debug_corrupt_block(struct extent_buffer *eb,
length = blocksize;
while (1) {
length = blocksize;
while (1) {
- ret = btrfs_map_block(&root->fs_info->mapping_tree, READ,
- eb->start, &length, &multi,
- mirror_num, NULL);
+ ret = btrfs_map_block(root->fs_info, READ, eb->start, &length,
+ &multi, mirror_num, NULL);
if (ret) {
error("cannot map block %llu length %llu mirror %d: %d",
(unsigned long long)eb->start,
if (ret) {
error("cannot map block %llu length %llu mirror %d: %d",
(unsigned long long)eb->start,
@@
-89,8
+88,8
@@
static int debug_corrupt_block(struct extent_buffer *eb,
fsync(eb->fd);
}
fsync(eb->fd);
}
- num_copies = btrfs_num_copies(
&root->fs_info->mapping_tree
,
- eb->
start, eb->
len);
+ num_copies = btrfs_num_copies(
root->fs_info, eb->start
,
+ eb->len);
if (num_copies == 1)
break;
if (num_copies == 1)
break;
@@
-126,7
+125,7
@@
static void print_usage(int ret)
}
static void corrupt_keys(struct btrfs_trans_handle *trans,
}
static void corrupt_keys(struct btrfs_trans_handle *trans,
- struct btrfs_
root *root
,
+ struct btrfs_
fs_info *fs_info
,
struct extent_buffer *eb)
{
int slot;
struct extent_buffer *eb)
{
int slot;
@@
-158,22
+157,22
@@
static void corrupt_keys(struct btrfs_trans_handle *trans,
btrfs_mark_buffer_dirty(eb);
if (!trans) {
u16 csum_size =
btrfs_mark_buffer_dirty(eb);
if (!trans) {
u16 csum_size =
- btrfs_super_csum_size(
root->
fs_info->super_copy);
+ btrfs_super_csum_size(fs_info->super_copy);
csum_tree_block_size(eb, csum_size, 0);
write_extent_to_disk(eb);
}
}
csum_tree_block_size(eb, csum_size, 0);
write_extent_to_disk(eb);
}
}
-static int corrupt_keys_in_block(struct btrfs_
root *root
, u64 bytenr)
+static int corrupt_keys_in_block(struct btrfs_
fs_info *fs_info
, u64 bytenr)
{
struct extent_buffer *eb;
{
struct extent_buffer *eb;
- eb = read_tree_block(
root, bytenr, root->fs_info->nodesize
, 0);
+ eb = read_tree_block(
fs_info, bytenr
, 0);
if (!extent_buffer_uptodate(eb))
return -EIO;;
if (!extent_buffer_uptodate(eb))
return -EIO;;
- corrupt_keys(NULL,
root
, eb);
+ corrupt_keys(NULL,
fs_info
, eb);
free_extent_buffer(eb);
return 0;
}
free_extent_buffer(eb);
return 0;
}
@@
-278,6
+277,7
@@
static void btrfs_corrupt_extent_tree(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *eb)
{
struct btrfs_root *root,
struct extent_buffer *eb)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int i;
if (!eb)
int i;
if (!eb)
@@
-296,8
+296,7
@@
static void btrfs_corrupt_extent_tree(struct btrfs_trans_handle *trans,
for (i = 0; i < btrfs_header_nritems(eb); i++) {
struct extent_buffer *next;
for (i = 0; i < btrfs_header_nritems(eb); i++) {
struct extent_buffer *next;
- next = read_tree_block(root, btrfs_node_blockptr(eb, i),
- root->fs_info->nodesize,
+ next = read_tree_block(fs_info, btrfs_node_blockptr(eb, i),
btrfs_node_ptr_generation(eb, i));
if (!extent_buffer_uptodate(next))
continue;
btrfs_node_ptr_generation(eb, i));
if (!extent_buffer_uptodate(next))
continue;
@@
-745,10
+744,11
@@
static void shift_items(struct btrfs_root *root, struct extent_buffer *eb)
}
}
}
}
-static int corrupt_metadata_block(struct btrfs_
root *root
, u64 block,
+static int corrupt_metadata_block(struct btrfs_
fs_info *fs_info
, u64 block,
char *field)
{
struct btrfs_trans_handle *trans;
char *field)
{
struct btrfs_trans_handle *trans;
+ struct btrfs_root *root;
struct btrfs_path *path;
struct extent_buffer *eb;
struct btrfs_key key, root_key;
struct btrfs_path *path;
struct extent_buffer *eb;
struct btrfs_key key, root_key;
@@
-764,7
+764,7
@@
static int corrupt_metadata_block(struct btrfs_root *root, u64 block,
return -EINVAL;
}
return -EINVAL;
}
- eb = read_tree_block(
root, block, root->fs_info->nodesize
, 0);
+ eb = read_tree_block(
fs_info, block
, 0);
if (!extent_buffer_uptodate(eb)) {
fprintf(stderr, "Couldn't read in tree block %s\n", field);
return -EINVAL;
if (!extent_buffer_uptodate(eb)) {
fprintf(stderr, "Couldn't read in tree block %s\n", field);
return -EINVAL;
@@
-781,7
+781,7
@@
static int corrupt_metadata_block(struct btrfs_root *root, u64 block,
root_key.type = BTRFS_ROOT_ITEM_KEY;
root_key.offset = (u64)-1;
root_key.type = BTRFS_ROOT_ITEM_KEY;
root_key.offset = (u64)-1;
- root = btrfs_read_fs_root(
root->
fs_info, &root_key);
+ root = btrfs_read_fs_root(fs_info, &root_key);
if (IS_ERR(root)) {
fprintf(stderr, "Couldn't find owner root %llu\n",
key.objectid);
if (IS_ERR(root)) {
fprintf(stderr, "Couldn't find owner root %llu\n",
key.objectid);
@@
-1226,13
+1226,16
@@
int main(int argc, char **argv)
if (logical == (u64)-1)
print_usage(1);
trans = btrfs_start_transaction(root, 1);
if (logical == (u64)-1)
print_usage(1);
trans = btrfs_start_transaction(root, 1);
+ BUG_ON(IS_ERR(trans));
ret = corrupt_extent(trans, root, logical);
btrfs_commit_transaction(trans, root);
goto out_close;
}
if (extent_tree) {
struct btrfs_trans_handle *trans;
ret = corrupt_extent(trans, root, logical);
btrfs_commit_transaction(trans, root);
goto out_close;
}
if (extent_tree) {
struct btrfs_trans_handle *trans;
+
trans = btrfs_start_transaction(root, 1);
trans = btrfs_start_transaction(root, 1);
+ BUG_ON(IS_ERR(trans));
btrfs_corrupt_extent_tree(trans, root->fs_info->extent_root,
root->fs_info->extent_root->node);
btrfs_commit_transaction(trans, root);
btrfs_corrupt_extent_tree(trans, root->fs_info->extent_root,
root->fs_info->extent_root->node);
btrfs_commit_transaction(trans, root);
@@
-1258,6
+1261,7
@@
int main(int argc, char **argv)
goto out_close;
}
trans = btrfs_start_transaction(root, 1);
goto out_close;
}
trans = btrfs_start_transaction(root, 1);
+ BUG_ON(IS_ERR(trans));
ret = corrupt_item_nocow(trans, root->fs_info->chunk_root,
path, del);
if (ret < 0)
ret = corrupt_item_nocow(trans, root->fs_info->chunk_root,
path, del);
if (ret < 0)
@@
-1267,7
+1271,9
@@
int main(int argc, char **argv)
}
if (chunk_tree) {
struct btrfs_trans_handle *trans;
}
if (chunk_tree) {
struct btrfs_trans_handle *trans;
+
trans = btrfs_start_transaction(root, 1);
trans = btrfs_start_transaction(root, 1);
+ BUG_ON(IS_ERR(trans));
ret = corrupt_chunk_tree(trans, root->fs_info->chunk_root);
if (ret < 0)
fprintf(stderr, "Failed to corrupt chunk tree\n");
ret = corrupt_chunk_tree(trans, root->fs_info->chunk_root);
if (ret < 0)
fprintf(stderr, "Failed to corrupt chunk tree\n");
@@
-1281,6
+1287,7
@@
int main(int argc, char **argv)
print_usage(1);
trans = btrfs_start_transaction(root, 1);
print_usage(1);
trans = btrfs_start_transaction(root, 1);
+ BUG_ON(IS_ERR(trans));
if (file_extent == (u64)-1) {
printf("corrupting inode\n");
ret = corrupt_inode(trans, root, inode, field);
if (file_extent == (u64)-1) {
printf("corrupting inode\n");
ret = corrupt_inode(trans, root, inode, field);
@@
-1295,7
+1302,8
@@
int main(int argc, char **argv)
if (metadata_block) {
if (*field == 0)
print_usage(1);
if (metadata_block) {
if (*field == 0)
print_usage(1);
- ret = corrupt_metadata_block(root, metadata_block, field);
+ ret = corrupt_metadata_block(root->fs_info, metadata_block,
+ field);
goto out_close;
}
if (corrupt_di) {
goto out_close;
}
if (corrupt_di) {
@@
-1358,12
+1366,12
@@
int main(int argc, char **argv)
while (bytes > 0) {
if (corrupt_block_keys) {
while (bytes > 0) {
if (corrupt_block_keys) {
- corrupt_keys_in_block(root, logical);
+ corrupt_keys_in_block(root
->fs_info
, logical);
} else {
struct extent_buffer *eb;
eb = btrfs_find_create_tree_block(root->fs_info,
} else {
struct extent_buffer *eb;
eb = btrfs_find_create_tree_block(root->fs_info,
- logical
, root->fs_info->sectorsize
);
+ logical);
if (!eb) {
error(
"not enough memory to allocate extent buffer for bytenr %llu",
if (!eb) {
error(
"not enough memory to allocate extent buffer for bytenr %llu",