static int pblk_recov_l2p_from_emeta(struct pblk *pblk, struct pblk_line *line)
{
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
struct pblk_line_meta *lm = &pblk->lm;
struct pblk_emeta *emeta = line->emeta;
struct line_emeta *emeta_buf = emeta->buf;
__le64 *lba_list;
u64 data_start, data_end;
u64 nr_valid_lbas, nr_lbas = 0;
u64 i;
lba_list = emeta_to_lbas(pblk, emeta_buf);
if (!lba_list)
return 1;
data_start = pblk_line_smeta_start(pblk, line) + lm->smeta_sec;
data_end = line->emeta_ssec;
nr_valid_lbas = le64_to_cpu(emeta_buf->nr_valid_lbas);
for (i = data_start; i < data_end; i++) {
struct ppa_addr ppa;
int pos;
ppa = addr_to_gen_ppa(pblk, i, line->id);
pos = pblk_ppa_to_pos(geo, ppa);
/* Do not update bad blocks */
if (test_bit(pos, line->blk_bitmap))
continue;
if (le64_to_cpu(lba_list[i]) == ADDR_EMPTY) {
spin_lock(&line->lock);
if (test_and_set_bit(i, line->invalid_bitmap))
WARN_ONCE(1, "pblk: rec. double invalidate:\n");
else
le32_add_cpu(line->vsc, -1);
spin_unlock(&line->lock);
continue;
}
pblk_update_map(pblk, le64_to_cpu(lba_list[i]), ppa);
nr_lbas++;
}
if (nr_valid_lbas != nr_lbas)
pblk_err(pblk, "line %d - inconsistent lba list(%llu/%llu)\n",
line->id, nr_valid_lbas, nr_lbas);
line->left_msecs = 0;
return 0;
}
__le64 *pblk_recov_get_lba_list(struct pblk *pblk, struct line_emeta *emeta_buf)
{
u32 crc;
crc = pblk_calc_emeta_crc(pblk, emeta_buf);
if (le32_to_cpu(emeta_buf->crc) != crc)
return NULL;
if (le32_to_cpu(emeta_buf->header.identifier) != PBLK_MAGIC)
return NULL;
return emeta_to_lbas(pblk, emeta_buf);
}
