diff options
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 11 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 6 |
2 files changed, 16 insertions, 1 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index af77655e65b2..d52a15799488 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -795,6 +795,17 @@ static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, return -EINVAL; } + if (__is_set_ckpt_flags(*cp_block, CP_LARGE_NAT_BITMAP_FLAG)) { + if (crc_offset != CP_MIN_CHKSUM_OFFSET) { + f2fs_put_page(*cp_page, 1); + f2fs_msg(sbi->sb, KERN_WARNING, + "layout of large_nat_bitmap is deprecated, " + "run fsck to repair, chksum_offset: %zu", + crc_offset); + return -EINVAL; + } + } + crc = f2fs_checkpoint_chksum(sbi, *cp_block); if (crc != cur_cp_crc(*cp_block)) { f2fs_put_page(*cp_page, 1); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9a9dc20e295b..97e4ef71de64 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1910,7 +1910,11 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { offset = (flag == SIT_BITMAP) ? le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; - return &ckpt->sit_nat_version_bitmap + offset; + /* + * if large_nat_bitmap feature is enabled, leave checksum + * protection for all nat/sit bitmaps. + */ + return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32); } if (__cp_payload(sbi) > 0) { |