2019-05-04 18:41:06

by Matias Bjørling

[permalink] [raw]
Subject: [GIT PULL 22/26] lightnvm: pblk: recover only written metadata

From: Igor Konopko <[email protected]>

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 <[email protected]>
Signed-off-by: Matias Bjørling <[email protected]>
---
drivers/lightnvm/pblk-recovery.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 865fe310cab4..a9085b0e6611 100644
--- 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)
--
2.19.1