Re: [PATCH v2] lightnvm: pblk: ignore the smeta oob area scan

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> On 26 Oct 2018, at 01.35, Zhoujie Wu <zjwu@xxxxxxxxxxx> wrote:
> 
> The smeta area l2p mapping is empty, and actually the
> recovery procedure only need to restore data sector's l2p
> mapping. So ignore the smeta oob scan.
> 
> Signed-off-by: Zhoujie Wu <zjwu@xxxxxxxxxxx>
> ---
> v2: Modified based on suggestion from Hans. The smeta may not start from
> paddr 0 if the first block is bad. Use pblk_line_smeta_start to calculate
> the smeta start address.
> 
> drivers/lightnvm/pblk-recovery.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
> index 5740b75..0fbd30e 100644
> --- a/drivers/lightnvm/pblk-recovery.c
> +++ b/drivers/lightnvm/pblk-recovery.c
> @@ -334,6 +334,7 @@ static int pblk_recov_scan_oob(struct pblk *pblk, struct pblk_line *line,
>                   struct pblk_recov_alloc p)
> {
>    struct nvm_tgt_dev *dev = pblk->dev;
> +    struct pblk_line_meta *lm = &pblk->lm;
>    struct nvm_geo *geo = &dev->geo;
>    struct ppa_addr *ppa_list;
>    struct pblk_sec_meta *meta_list;
> @@ -342,12 +343,12 @@ static int pblk_recov_scan_oob(struct pblk *pblk, struct pblk_line *line,
>    void *data;
>    dma_addr_t dma_ppa_list, dma_meta_list;
>    __le64 *lba_list;
> -    u64 paddr = 0;
> +    u64 paddr = pblk_line_smeta_start(pblk, line) + lm->smeta_sec;
>    bool padded = false;
>    int rq_ppas, rq_len;
>    int i, j;
>    int ret;
> -    u64 left_ppas = pblk_sec_in_open_line(pblk, line);
> +    u64 left_ppas = pblk_sec_in_open_line(pblk, line) - lm->smeta_sec;
> 
>    if (pblk_line_wp_is_unbalanced(pblk, line))
>        pblk_warn(pblk, "recovering unbalanced line (%d)\n", line->id);
> -- 
> 1.9.1
> 

Looks good to me.

Reviewed-by: Javier González <javier@xxxxxxxxxxx>




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