diff options
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 2cd78583218a..cbbb1e35070d 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2592,7 +2592,8 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi) unsigned int log_blocks_per_seg; unsigned int segment_count_main; unsigned int cp_pack_start_sum, cp_payload; - block_t user_block_count; + block_t user_block_count, valid_user_blocks; + block_t avail_node_count, valid_node_count; int i, j; total = le32_to_cpu(raw_super->segment_count); @@ -2627,6 +2628,24 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi) return 1; } + valid_user_blocks = le64_to_cpu(ckpt->valid_block_count); + if (valid_user_blocks > user_block_count) { + f2fs_msg(sbi->sb, KERN_ERR, + "Wrong valid_user_blocks: %u, user_block_count: %u", + valid_user_blocks, user_block_count); + return 1; + } + + valid_node_count = le32_to_cpu(ckpt->valid_node_count); + avail_node_count = sbi->total_node_count - sbi->nquota_files - + F2FS_RESERVED_NODE_NUM; + if (valid_node_count > avail_node_count) { + f2fs_msg(sbi->sb, KERN_ERR, + "Wrong valid_node_count: %u, avail_node_count: %u", + valid_node_count, avail_node_count); + return 1; + } + main_segs = le32_to_cpu(raw_super->segment_count_main); blocks_per_seg = sbi->blocks_per_seg; |