diff options
| -rw-r--r-- | block/blk-rq-qos.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c index d3a75693adbf..88f0fe7dcf54 100644 --- a/block/blk-rq-qos.c +++ b/block/blk-rq-qos.c @@ -10,16 +10,10 @@ static bool atomic_inc_below(atomic_t *v, unsigned int below) { unsigned int cur = atomic_read(v); - for (;;) { - unsigned int old; - + do { if (cur >= below) return false; - old = atomic_cmpxchg(v, cur, cur + 1); - if (old == cur) - break; - cur = old; - } + } while (!atomic_try_cmpxchg(v, &cur, cur + 1)); return true; } |