lightnvm: pblk: recover only written metadata

This patch ensures that smeta was fully written before even
trying to read it based on chunk table state and write pointer.

Signed-off-by: Igor Konopko <igor.j.konopko@intel.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 865fe31..a9085b0 100644 (file)
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -655,10 +655,12 @@ static int pblk_line_was_written(struct pblk_line *line,
        bppa = pblk->luns[smeta_blk].bppa;
        chunk = &line->chks[pblk_ppa_to_pos(geo, bppa)];
 
-       if (chunk->state & NVM_CHK_ST_FREE)
-               return 0;
+       if (chunk->state & NVM_CHK_ST_CLOSED ||
+           (chunk->state & NVM_CHK_ST_OPEN
+            && chunk->wp >= lm->smeta_sec))
+               return 1;
 
-       return 1;
+       return 0;
 }
 
 static bool pblk_line_is_open(struct pblk *pblk, struct pblk_line *line)