From: Wenwei Tao <ww.tao0320@xxxxxxxxx>
Break the loop when rqd is not null to reduce
an unnecessary schedule.
Signed-off-by: Wenwei Tao <ww.tao0320@xxxxxxxxx>
Signed-off-by: Matias Bjørling <m@xxxxxxxxxxx>
---
drivers/lightnvm/rrpc.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index de86d72..736e669 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -96,10 +96,13 @@ static void rrpc_discard(struct rrpc *rrpc, struct bio *bio)
sector_t len = bio->bi_iter.bi_size / RRPC_EXPOSED_PAGE_SIZE;
struct nvm_rq *rqd;
- do {
+ while (1) {
rqd = rrpc_inflight_laddr_acquire(rrpc, slba, len);
+ if (rqd)
+ break;
+
schedule();
- } while (!rqd);
+ }
if (IS_ERR(rqd)) {
pr_err("rrpc: unable to acquire inflight IO\n");
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-block" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
