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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>
This commit is contained in:
Igor Konopko 2019-05-04 20:38:02 +02:00 committed by Jens Axboe
parent 2b0ae81e2a
commit d165a7a6f5
2 changed files with 8 additions and 3 deletions
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9
drivers/lightnvm/pblk-core.c
View File

@ -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 @@ int pblk_line_emeta_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;
goto free_rqd_dma;
}
emeta_buf += rq_len;
left_ppas -= rq_ppas;

2
drivers/lightnvm/pblk-recovery.c
View File

@ -458,7 +458,7 @@ static int pblk_recov_scan_oob(struct pblk *pblk, struct pblk_line *line,
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) {