Re: [PATCH] lightnvm: pblk: set propper line as data_line after gc

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On 3/18/19 4:27 PM, Marcin Dziegielewski wrote:
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. This patch fixes that issue.

Signed-off-by: Marcin Dziegielewski <marcin.dziegielewski@xxxxxxxxx>
---
  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 83b467b..017874e 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) {


Thanks Marcin.



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