From 0f9248cf1e22333b2a0458540aafb1ad3b2b3337 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Javier=20Gonz=C3=A1lez?= <javier@cnexlabs.com>
Date: Fri, 13 Oct 2017 14:46:24 +0200
Subject: [PATCH] lightnvm: pblk: remove redundant check on read path
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A partial read I/O in pblk is an I/O where some sectors reside in the
write buffer in main memory and some are persisted on the device. Such
an I/O must at least contain 2 lbas, therefore checking for the case
where a single lba is mapped is not necessary.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
drivers/lightnvm/pblk-read.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 402f8eff6a2e8..71c58503f1a45 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -235,7 +235,7 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
rqd->end_io = pblk_end_io_sync;
rqd->private = &wait;
- if (unlikely(nr_secs > 1 && nr_holes == 1)) {
+ if (unlikely(nr_holes == 1)) {
ppa_ptr = rqd->ppa_list;
dma_ppa_list = rqd->dma_ppa_list;
rqd->ppa_addr = rqd->ppa_list[0];
@@ -260,7 +260,7 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
#endif
}
- if (unlikely(nr_secs > 1 && nr_holes == 1)) {
+ if (unlikely(nr_holes == 1)) {
struct ppa_addr ppa;
ppa = rqd->ppa_addr;
--
2.30.2