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| author | Wenwei Tao <ww.tao0320@gmail.com> | 2016-07-07 10:54:07 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-07-07 17:51:52 +0300 |
| commit | 0de2415bb730ee26ce4c90778696d3559f4312c5 (patch) | |
| tree | ac387b41c21c9bad29f4f44de73e9f127c88e5c3 | |
| parent | f98d9ca17fbddd82980bc20abfabd5b405ecade4 (diff) | |
| download | linux-0de2415bb730ee26ce4c90778696d3559f4312c5.tar.xz | |
lightnvm: break the loop when rqd is not null
Break the loop when rqd is not null to reduce
an unnecessary schedule.
Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | drivers/lightnvm/rrpc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c index de86d72dcdf0..736e66968bc6 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"); |