mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 15:18:19 +00:00
Code Issues Releases Wiki Activity

lightnvm: pblk: remove redundant check on read path

Browse source 
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>
This commit is contained in:
Javier González 2017-10-13 14:46:24 +02:00 committed by Jens Axboe
parent 7bd4d370db
commit 0f9248cf1e
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/lightnvm/pblk-read.c
View file

@ -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;