[PATCH v2 6/8] lightnvm: pblk: Set proper read stutus in bio

[Igor Konopko <igor.j.konopko@intel.com>]

Currently in case of read errors, bi_status is not set properly which
leads to returning inproper data to higher layer. This patch fix that
by setting proper status in case of read errors

Patch also removes unnecessary warn_once(), which does not make sense
in that place, since user bio is not used for interation with drive
and thus bi_status will not be set here.

Signed-off-by: Igor Konopko <igor.j.konopko@intel.com>
---
 drivers/lightnvm/pblk-read.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 1f9b319..6569746 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -175,11 +175,10 @@ static void pblk_read_check_rand(struct pblk *pblk, struct nvm_rq *rqd,
 	WARN_ONCE(j != rqd->nr_ppas, "pblk: corrupted random request\n");
 }
 
-static void pblk_end_user_read(struct bio *bio)
+static void pblk_end_user_read(struct bio *bio, int error)
 {
-#ifdef CONFIG_NVM_PBLK_DEBUG
-	WARN_ONCE(bio->bi_status, "pblk: corrupted read bio\n");
-#endif
+	if (error && error != NVM_RSP_WARN_HIGHECC)
+		bio_io_error(bio);
 	bio_endio(bio);
 }
 
@@ -219,7 +218,7 @@ static void pblk_end_io_read(struct nvm_rq *rqd)
 	struct pblk_g_ctx *r_ctx = nvm_rq_to_pdu(rqd);
 	struct bio *bio = (struct bio *)r_ctx->private;
 
-	pblk_end_user_read(bio);
+	pblk_end_user_read(bio, rqd->error);
 	__pblk_end_io_read(pblk, rqd, true);
 }
 
@@ -292,7 +291,7 @@ static void pblk_end_partial_read(struct nvm_rq *rqd)
 	rqd->bio = NULL;
 	rqd->nr_ppas = nr_secs;
 
-	bio_endio(bio);
+	pblk_end_user_read(bio, rqd->error);
 	__pblk_end_io_read(pblk, rqd, false);
 }
 
-- 
2.9.5