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authorIgor Konopko <igor.j.konopko@intel.com>2019-05-04 21:38:02 +0300
committerJens Axboe <axboe@kernel.dk>2019-05-06 19:19:18 +0300
commitd165a7a6f5aa05dfdfc164e24c11b6458a523ff7 (patch)
treea02eedc457fb198b506e305b1b28951a7234e2fe
parent2b0ae81e2a6f2114a68bdcc410bd1d72bacc97ad (diff)
downloadlinux-d165a7a6f5aa05dfdfc164e24c11b6458a523ff7.tar.xz
lightnvm: pblk: propagate errors when reading meta
Read errors are not correctly propagated. Errors are cleared before returning control to the io submitter. Change the behaviour such that all read errors exept high ecc read warning status is returned appropriately. Signed-off-by: Igor Konopko <igor.j.konopko@intel.com> Reviewed-by: Javier González <javier@javigon.com> Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/lightnvm/pblk-core.c9
-rw-r--r--drivers/lightnvm/pblk-recovery.c2
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 39280c1e9b5d..38e26fe23138 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -761,8 +761,10 @@ int pblk_line_smeta_read(struct pblk *pblk, struct pblk_line *line)
atomic_dec(&pblk->inflight_io);
- if (rqd.error)
+ if (rqd.error && rqd.error != NVM_RSP_WARN_HIGHECC) {
pblk_log_read_err(pblk, &rqd);
+ ret = -EIO;
+ }
clear_rqd:
pblk_free_rqd_meta(pblk, &rqd);
@@ -916,8 +918,11 @@ next_rq:
atomic_dec(&pblk->inflight_io);
- if (rqd.error)
+ if (rqd.error && rqd.error != NVM_RSP_WARN_HIGHECC) {
pblk_log_read_err(pblk, &rqd);
+ ret = -EIO;
+ goto free_rqd_dma;
+ }
emeta_buf += rq_len;
left_ppas -= rq_ppas;
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 357e52980f2f..124d8179b2ad 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -458,7 +458,7 @@ retry_rq:
atomic_dec(&pblk->inflight_io);
/* If a read fails, do a best effort by padding the line and retrying */
- if (rqd->error) {
+ if (rqd->error && rqd->error != NVM_RSP_WARN_HIGHECC) {
int pad_distance, ret;
if (padded) {