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lightnvm: pblk: recover partially written lines correctly 

When recovering partially written lines, the valid sector
count must be decreased by the number of padded sectors
in the line.

Update line recovery to take all ADDR_EMPTY(padded) sectors
into account.

Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Hans Holmberg 2017-10-13 14:46:35 +02:00 committed by Jens Axboe
parent 3e3a5b8ebd
commit 92957091e9
1 changed files with 4 additions and 4 deletions
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8
drivers/lightnvm/pblk-recovery.c
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@ -133,8 +133,8 @@ static int pblk_recov_l2p_from_emeta(struct pblk *pblk, struct pblk_line *line)
struct pblk_emeta *emeta = line->emeta;
struct line_emeta *emeta_buf = emeta->buf;
__le64 *lba_list;
int data_start;
int nr_data_lbas, nr_valid_lbas, nr_lbas = 0;
int data_start, data_end;
int nr_valid_lbas, nr_lbas = 0;
int i;
lba_list = pblk_recov_get_lba_list(pblk, emeta_buf);
@ -142,10 +142,10 @@ static int pblk_recov_l2p_from_emeta(struct pblk *pblk, struct pblk_line *line)
return 1;
data_start = pblk_line_smeta_start(pblk, line) + lm->smeta_sec;
nr_data_lbas = lm->sec_per_line - lm->emeta_sec[0];
data_end = lm->sec_per_line - lm->emeta_sec[0];
nr_valid_lbas = le64_to_cpu(emeta_buf->nr_valid_lbas);
for (i = data_start; i < nr_data_lbas && nr_lbas < nr_valid_lbas; i++) {
for (i = data_start; i < data_end; i++) {
struct ppa_addr ppa;
int pos;