Hi Chao,
Could you please add this into Junling's patch series?
A little bit confusing between patches and reviews on them.
Thanks,
On 08/28, Chao Yu wrote:
> If sb checksum is not enabled, and cp pack is valid due to no
> crc inconsistence, let's try to recover cp_payload based on
> cp_pack_start_sum in cp pack.
>
> Signed-off-by: Chao Yu <yuch...@huawei.com>
> ---
> fsck/f2fs.h | 5 +++++
> fsck/mount.c | 10 +++++++---
> 2 files changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/fsck/f2fs.h b/fsck/f2fs.h
> index d2164449db15..0d0d5e2cc399 100644
> --- a/fsck/f2fs.h
> +++ b/fsck/f2fs.h
> @@ -259,6 +259,11 @@ static inline unsigned long __bitmap_size(struct
> f2fs_sb_info *sbi, int flag)
> return 0;
> }
>
> +static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
> +{
> + return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
> +}
> +
> static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
> {
> struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
> diff --git a/fsck/mount.c b/fsck/mount.c
> index 4f0c3fc0db50..9421f5953cd8 100644
> --- a/fsck/mount.c
> +++ b/fsck/mount.c
> @@ -945,12 +945,16 @@ int sanity_check_ckpt(struct f2fs_sb_info *sbi)
> }
>
> cp_pack_start_sum = __start_sum_addr(sbi);
> - cp_payload = get_sb(cp_payload);
> + cp_payload = __cp_payload(sbi);
> if (cp_pack_start_sum < cp_payload + 1 ||
> cp_pack_start_sum > blocks_per_seg - 1 -
> NR_CURSEG_TYPE) {
> - MSG(0, "\tWrong cp_pack_start_sum(%u)\n", cp_pack_start_sum);
> - return 1;
> + MSG(0, "\tWrong cp_pack_start_sum(%u) or cp_payload(%u)\n",
> + cp_pack_start_sum, cp_payload);
> + if ((get_sb(feature) & F2FS_FEATURE_SB_CHKSUM))
> + return 1;
> + set_sb(cp_payload, cp_pack_start_sum - 1);
> + update_superblock(sb, SB_ALL);
> }
>
> return 0;
> --
> 2.18.0.rc1
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