static int is_valid_ssa_node_blk(struct f2fs_sb_info *sbi, u32 nid, u32 blk_addr)
{
int ret = 0;
struct f2fs_summary sum_entry;
ret = get_sum_entry(sbi, blk_addr, &sum_entry);
ASSERT(ret >= 0);
if (ret == SEG_TYPE_DATA || ret == SEG_TYPE_CUR_DATA) {
ASSERT_MSG(0, "Summary footer is not a node segment summary\n");;
} else if (ret == SEG_TYPE_NODE) {
if (le32_to_cpu(sum_entry.nid) != nid) {
DBG(0, "nid [0x%x]\n", nid);
DBG(0, "target blk_addr [0x%x]\n", blk_addr);
DBG(0, "summary blk_addr [0x%x]\n",
GET_SUM_BLKADDR(sbi, GET_SEGNO(sbi, blk_addr)));
DBG(0, "seg no / offset [0x%x / 0x%x]\n",
GET_SEGNO(sbi, blk_addr), OFFSET_IN_SEG(sbi, blk_addr));
DBG(0, "summary_entry.nid [0x%x]\n", le32_to_cpu(sum_entry.nid));
DBG(0, "--> node block's nid [0x%x]\n", nid);
ASSERT_MSG(0, "Invalid node seg summary\n");
}
} else if (ret == SEG_TYPE_CUR_NODE) {
/* current node segment has no ssa */
} else {
ASSERT_MSG(0, "Invalid return value of 'get_sum_entry'");
}
return 1;
}
int dump_inode_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
{
nid_t ino, nid;
int type, ret;
struct f2fs_summary sum_entry;
struct node_info ni;
struct f2fs_node *node_blk;
type = get_sum_entry(sbi, blk_addr, &sum_entry);
nid = le32_to_cpu(sum_entry.nid);
ret = get_node_info(sbi, nid, &ni);
ASSERT(ret >= 0);
DBG(1, "Note: blkaddr = main_blkaddr + segno * 512 + offset\n");
DBG(1, "Block_addr [0x%x]\n", blk_addr);
DBG(1, " - Segno [0x%x]\n", GET_SEGNO(sbi, blk_addr));
DBG(1, " - Offset [0x%x]\n", OFFSET_IN_SEG(sbi, blk_addr));
DBG(1, "SUM.nid [0x%x]\n", nid);
DBG(1, "SUM.type [%s]\n", seg_type_name[type]);
DBG(1, "SUM.version [%d]\n", sum_entry.version);
DBG(1, "SUM.ofs_in_node [%d]\n", sum_entry.ofs_in_node);
DBG(1, "NAT.blkaddr [0x%x]\n", ni.blk_addr);
DBG(1, "NAT.ino [0x%x]\n", ni.ino);
node_blk = calloc(BLOCK_SZ, 1);
read_node_blk:
dev_read_block(node_blk, blk_addr);
ino = le32_to_cpu(node_blk->footer.ino);
nid = le32_to_cpu(node_blk->footer.nid);
if (ino == nid) {
print_node_info(node_blk);
} else {
ret = get_node_info(sbi, ino, &ni);
goto read_node_blk;
}
free(node_blk);
return ino;
}
static int check_index_in_prev_nodes(struct f2fs_sb_info *sbi,
block_t blkaddr, struct dnode_of_data *dn)
{
struct seg_entry *sentry;
unsigned int segno = GET_SEGNO(sbi, blkaddr);
unsigned short blkoff = GET_BLKOFF_FROM_SEG0(sbi, blkaddr);
struct f2fs_summary_block *sum_node;
struct f2fs_summary sum;
struct page *sum_page, *node_page;
struct dnode_of_data tdn = *dn;
nid_t ino, nid;
struct inode *inode;
unsigned int offset;
block_t bidx;
int i;
sentry = get_seg_entry(sbi, segno);
if (!f2fs_test_bit(blkoff, sentry->cur_valid_map))
return 0;
/* Get the previous summary */
for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
struct curseg_info *curseg = CURSEG_I(sbi, i);
if (curseg->segno == segno) {
sum = curseg->sum_blk->entries[blkoff];
goto got_it;
}
}
sum_page = f2fs_get_sum_page(sbi, segno);
if (IS_ERR(sum_page))
return PTR_ERR(sum_page);
sum_node = (struct f2fs_summary_block *)page_address(sum_page);
sum = sum_node->entries[blkoff];
f2fs_put_page(sum_page, 1);
got_it:
/* Use the locked dnode page and inode */
nid = le32_to_cpu(sum.nid);
if (dn->inode->i_ino == nid) {
tdn.nid = nid;
if (!dn->inode_page_locked)
lock_page(dn->inode_page);
tdn.node_page = dn->inode_page;
tdn.ofs_in_node = le16_to_cpu(sum.ofs_in_node);
goto truncate_out;
} else if (dn->nid == nid) {
tdn.ofs_in_node = le16_to_cpu(sum.ofs_in_node);
goto truncate_out;
}
/* Get the node page */
node_page = f2fs_get_node_page(sbi, nid);
if (IS_ERR(node_page))
return PTR_ERR(node_page);
offset = ofs_of_node(node_page);
ino = ino_of_node(node_page);
f2fs_put_page(node_page, 1);
if (ino != dn->inode->i_ino) {
int ret;
/* Deallocate previous index in the node page */
inode = f2fs_iget_retry(sbi->sb, ino);
if (IS_ERR(inode))
return PTR_ERR(inode);
ret = dquot_initialize(inode);
if (ret) {
iput(inode);
return ret;
}
} else {
inode = dn->inode;
}
bidx = f2fs_start_bidx_of_node(offset, inode) +
le16_to_cpu(sum.ofs_in_node);
/*
* if inode page is locked, unlock temporarily, but its reference
* count keeps alive.
*/
if (ino == dn->inode->i_ino && dn->inode_page_locked)
unlock_page(dn->inode_page);
set_new_dnode(&tdn, inode, NULL, NULL, 0);
if (f2fs_get_dnode_of_data(&tdn, bidx, LOOKUP_NODE))
goto out;
if (tdn.data_blkaddr == blkaddr)
f2fs_truncate_data_blocks_range(&tdn, 1);
f2fs_put_dnode(&tdn);
out:
if (ino != dn->inode->i_ino)
iput(inode);
else if (dn->inode_page_locked)
lock_page(dn->inode_page);
return 0;
truncate_out:
if (datablock_addr(tdn.inode, tdn.node_page,
tdn.ofs_in_node) == blkaddr)
f2fs_truncate_data_blocks_range(&tdn, 1);
if (dn->inode->i_ino == nid && !dn->inode_page_locked)
unlock_page(dn->inode_page);
return 0;
}
int dump_info_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
{
nid_t nid;
int type;
struct f2fs_summary sum_entry;
struct node_info ni, ino_ni;
int ret = 0;
MSG(0, "\n== Dump data from block address ==\n\n");
if (blk_addr < SM_I(sbi)->seg0_blkaddr) {
MSG(0, "\nFS Reserved Area for SEG #0: ");
ret = -EINVAL;
} else if (blk_addr < SIT_I(sbi)->sit_base_addr) {
MSG(0, "\nFS Metadata Area: ");
ret = -EINVAL;
} else if (blk_addr < NM_I(sbi)->nat_blkaddr) {
MSG(0, "\nFS SIT Area: ");
ret = -EINVAL;
} else if (blk_addr < SM_I(sbi)->ssa_blkaddr) {
MSG(0, "\nFS NAT Area: ");
ret = -EINVAL;
} else if (blk_addr < SM_I(sbi)->main_blkaddr) {
MSG(0, "\nFS SSA Area: ");
ret = -EINVAL;
} else if (blk_addr > __end_block_addr(sbi)) {
MSG(0, "\nOut of address space: ");
ret = -EINVAL;
}
if (ret) {
MSG(0, "User data is from 0x%x to 0x%x\n\n",
SM_I(sbi)->main_blkaddr,
__end_block_addr(sbi));
return ret;
}
type = get_sum_entry(sbi, blk_addr, &sum_entry);
nid = le32_to_cpu(sum_entry.nid);
get_node_info(sbi, nid, &ni);
DBG(1, "Note: blkaddr = main_blkaddr + segno * 512 + offset\n");
DBG(1, "Block_addr [0x%x]\n", blk_addr);
DBG(1, " - Segno [0x%x]\n", GET_SEGNO(sbi, blk_addr));
DBG(1, " - Offset [0x%x]\n", OFFSET_IN_SEG(sbi, blk_addr));
DBG(1, "SUM.nid [0x%x]\n", nid);
DBG(1, "SUM.type [%s]\n", seg_type_name[type]);
DBG(1, "SUM.version [%d]\n", sum_entry.version);
DBG(1, "SUM.ofs_in_node [0x%x]\n", sum_entry.ofs_in_node);
DBG(1, "NAT.blkaddr [0x%x]\n", ni.blk_addr);
DBG(1, "NAT.ino [0x%x]\n", ni.ino);
get_node_info(sbi, ni.ino, &ino_ni);
/* inode block address */
if (ni.blk_addr == NULL_ADDR || ino_ni.blk_addr == NULL_ADDR) {
MSG(0, "FS Userdata Area: Obsolete block from 0x%x\n",
blk_addr);
return -EINVAL;
}
/* print inode */
if (config.dbg_lv > 0)
dump_node_from_blkaddr(ino_ni.blk_addr);
if (type == SEG_TYPE_CUR_DATA || type == SEG_TYPE_DATA) {
MSG(0, "FS Userdata Area: Data block from 0x%x\n", blk_addr);
MSG(0, " - Direct node block : id = 0x%x from 0x%x\n",
nid, ni.blk_addr);
MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
ni.ino, ino_ni.blk_addr);
dump_node_from_blkaddr(ino_ni.blk_addr);
dump_data_offset(ni.blk_addr,
le16_to_cpu(sum_entry.ofs_in_node));
} else {
MSG(0, "FS Userdata Area: Node block from 0x%x\n", blk_addr);
if (ni.ino == ni.nid) {
MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
ni.ino, ino_ni.blk_addr);
dump_node_from_blkaddr(ino_ni.blk_addr);
} else {
MSG(0, " - Node block : id = 0x%x from 0x%x\n",
nid, ni.blk_addr);
MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
ni.ino, ino_ni.blk_addr);
dump_node_from_blkaddr(ino_ni.blk_addr);
dump_node_offset(ni.blk_addr);
}
}
return 0;
}
