On Sun, May 20, 2018 at 08:33:39AM +0100, Al Viro wrote:
> > ... get buggered on attempt to dereference a pointer fetched from freed and
> > reused object.
>
> FWIW, how painful would it be to pull the following trick:
> * insert into wait queue under ->ctx_lock
> * have wakeup do sche
On Sun, May 20, 2018 at 06:32:25AM +0100, Al Viro wrote:
> > + spin_lock_irqsave(&ctx->ctx_lock, flags);
> > + list_add_tail(&aiocb->ki_list, &ctx->delayed_cancel_reqs);
> > + spin_unlock(&ctx->ctx_lock);
>
> ... and io_cancel(2) comes, finds it and inhume^Wcompletes it, leaving us
> to...
On Tue, May 15, 2018 at 09:48:11PM +0200, Christoph Hellwig wrote:
> +static ssize_t aio_poll(struct aio_kiocb *aiocb, struct iocb *iocb)
> +{
> + struct kioctx *ctx = aiocb->ki_ctx;
> + struct poll_iocb *req = &aiocb->poll;
> + unsigned long flags;
> + __poll_t mask;
> +
> + /*
Simple one-shot poll through the io_submit() interface. To poll for
a file descriptor the application should submit an iocb of type
IOCB_CMD_POLL. It will poll the fd for the events specified in the
the first 32 bits of the aio_buf field of the iocb.
Unlike poll or epoll without EPOLLONESHOT thi
Simple one-shot poll through the io_submit() interface. To poll for
a file descriptor the application should submit an iocb of type
IOCB_CMD_POLL. It will poll the fd for the events specified in the
the first 32 bits of the aio_buf field of the iocb.
Unlike poll or epoll without EPOLLONESHOT thi
Simple one-shot poll through the io_submit() interface. To poll for
a file descriptor the application should submit an iocb of type
IOCB_CMD_POLL. It will poll the fd for the events specified in the
the first 32 bits of the aio_buf field of the iocb.
Unlike poll or epoll without EPOLLONESHOT thi
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