diff options
Diffstat (limited to 'fs/io-wq.c')
| -rw-r--r-- | fs/io-wq.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/io-wq.c b/fs/io-wq.c index 473af080470a..82e76011d409 100644 --- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -474,11 +474,11 @@ static void io_worker_handle_work(struct io_worker *worker) { struct io_wqe *wqe = worker->wqe; struct io_wq *wq = wqe->wq; + unsigned hash = -1U; do { struct io_wq_work *work; - unsigned hash = -1U; - +get_next: /* * If we got some work, mark us as busy. If we didn't, but * the list isn't empty, it means we stalled on hashed work. @@ -524,9 +524,12 @@ static void io_worker_handle_work(struct io_worker *worker) spin_lock_irq(&wqe->lock); wqe->hash_map &= ~BIT_ULL(hash); wqe->flags &= ~IO_WQE_FLAG_STALLED; - spin_unlock_irq(&wqe->lock); /* dependent work is not hashed */ hash = -1U; + /* skip unnecessary unlock-lock wqe->lock */ + if (!work) + goto get_next; + spin_unlock_irq(&wqe->lock); } } while (work); |