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Subject[GIT PULL 46/58] lightnvm: pblk: recover partially written lines correctly
Date
From: Hans Holmberg <hans.holmberg@cnexlabs.com>

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>
---
drivers/lightnvm/pblk-recovery.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 686bc17..a080cf8 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -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;

--
2.9.3
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