From: Wenwei Tao <[email protected]> Break the loop when rqd is not null to reduce an unnecessary schedule.
Signed-off-by: Wenwei Tao <[email protected]> Signed-off-by: Matias Bjørling <[email protected]> --- 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
