diff options
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 40 |
1 files changed, 2 insertions, 38 deletions
@@ -711,10 +711,8 @@ static ssize_t aio_run_iocb(struct kiocb *iocb) */ ret = retry(iocb); - if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) { - BUG_ON(!list_empty(&iocb->ki_wait.task_list)); + if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) aio_complete(iocb, ret, 0); - } out: spin_lock_irq(&ctx->ctx_lock); @@ -866,13 +864,6 @@ static void try_queue_kicked_iocb(struct kiocb *iocb) unsigned long flags; int run = 0; - /* We're supposed to be the only path putting the iocb back on the run - * list. If we find that the iocb is *back* on a wait queue already - * than retry has happened before we could queue the iocb. This also - * means that the retry could have completed and freed our iocb, no - * good. */ - BUG_ON((!list_empty(&iocb->ki_wait.task_list))); - spin_lock_irqsave(&ctx->ctx_lock, flags); /* set this inside the lock so that we can't race with aio_run_iocb() * testing it and putting the iocb on the run list under the lock */ @@ -886,7 +877,7 @@ static void try_queue_kicked_iocb(struct kiocb *iocb) /* * kick_iocb: * Called typically from a wait queue callback context - * (aio_wake_function) to trigger a retry of the iocb. + * to trigger a retry of the iocb. * The retry is usually executed by aio workqueue * threads (See aio_kick_handler). */ @@ -1520,31 +1511,6 @@ static ssize_t aio_setup_iocb(struct kiocb *kiocb) return 0; } -/* - * aio_wake_function: - * wait queue callback function for aio notification, - * Simply triggers a retry of the operation via kick_iocb. - * - * This callback is specified in the wait queue entry in - * a kiocb. - * - * Note: - * This routine is executed with the wait queue lock held. - * Since kick_iocb acquires iocb->ctx->ctx_lock, it nests - * the ioctx lock inside the wait queue lock. This is safe - * because this callback isn't used for wait queues which - * are nested inside ioctx lock (i.e. ctx->wait) - */ -static int aio_wake_function(wait_queue_t *wait, unsigned mode, - int sync, void *key) -{ - struct kiocb *iocb = container_of(wait, struct kiocb, ki_wait); - - list_del_init(&wait->task_list); - kick_iocb(iocb); - return 1; -} - static void aio_batch_add(struct address_space *mapping, struct hlist_head *batch_hash) { @@ -1642,8 +1608,6 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, req->ki_buf = (char __user *)(unsigned long)iocb->aio_buf; req->ki_left = req->ki_nbytes = iocb->aio_nbytes; req->ki_opcode = iocb->aio_lio_opcode; - init_waitqueue_func_entry(&req->ki_wait, aio_wake_function); - INIT_LIST_HEAD(&req->ki_wait.task_list); ret = aio_setup_iocb(req); |