diff options
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 7591d2d7b612..1a526474b332 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1452,6 +1452,7 @@ int sanity_check_ckpt(struct f2fs_sb_info *sbi) unsigned int total, fsmeta; struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); + unsigned int ovp_segments, reserved_segments; total = le32_to_cpu(raw_super->segment_count); fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); @@ -1463,6 +1464,16 @@ int sanity_check_ckpt(struct f2fs_sb_info *sbi) if (unlikely(fsmeta >= total)) return 1; + ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); + reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); + + if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || + ovp_segments == 0 || reserved_segments == 0)) { + f2fs_msg(sbi->sb, KERN_ERR, + "Wrong layout: check mkfs.f2fs version"); + return 1; + } + if (unlikely(f2fs_cp_error(sbi))) { f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); return 1; |