[GIT PULL 12/26] lightnvm: pblk: set propper line as data_line after gc

From: Matias BjÃrling
Date: Sat May 04 2019 - 14:40:44 EST


From: Marcin Dziegielewski <marcin.dziegielewski@xxxxxxxxx>

In current implementation of l2p recovery, when we are after gc and we
have open line, we are not setting current data line properly (we set
last line from the device instead of last line ordered by seq_nr) and
in consequence, kernel panic and data corruption.

Signed-off-by: Marcin Dziegielewski <marcin.dziegielewski@xxxxxxxxx>
Reviewed-by: Javier GonzÃlez <javier@xxxxxxxxxxx>
Signed-off-by: Matias BjÃrling <mb@xxxxxxxxxxx>
---
drivers/lightnvm/pblk-recovery.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 83b467b5edc7..017874e03253 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -844,6 +844,7 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
spin_unlock(&l_mg->free_lock);
} else {
spin_lock(&l_mg->free_lock);
+ l_mg->data_line = data_line;
/* Allocate next line for preparation */
l_mg->data_next = pblk_line_get(pblk);
if (l_mg->data_next) {
--
2.19.1