From: Paolo Bonzini <pbonzini@redhat.com>
To: Ming Lei <ming.lei@canonical.com>,
qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>,
Kevin Wolf <kwolf@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v4 1/3] linux-aio: fix submit aio as a batch
Date: Mon, 24 Nov 2014 12:39:38 +0100 [thread overview]
Message-ID: <547318FA.5020301@redhat.com> (raw)
In-Reply-To: <1416828693-30767-2-git-send-email-ming.lei@canonical.com>
On 24/11/2014 12:31, Ming Lei wrote:
> +static int ioq_enqueue(struct qemu_laio_state *s, struct iocb *iocb)
> {
> unsigned int idx = s->io_q.idx;
>
> + if (unlikely(idx == s->io_q.size)) {
> + ioq_submit(s);
> + return -EAGAIN;
Only return -EAGAIN if ioq_submit(s) returns 0? Otherwise reload idx
and go on.
Paolo
> + }
> +
next prev parent reply other threads:[~2014-11-24 11:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-24 11:31 [Qemu-devel] [PATCH v4 0/3] linux-aio: fix batch submission Ming Lei
2014-11-24 11:31 ` [Qemu-devel] [PATCH v4 1/3] linux-aio: fix submit aio as a batch Ming Lei
2014-11-24 11:39 ` Paolo Bonzini [this message]
2014-11-24 11:51 ` Ming Lei
2014-11-24 11:31 ` [Qemu-devel] [PATCH v4 2/3] linux-aio: handling -EAGAIN for !s->io_q.plugged case Ming Lei
2014-11-24 11:38 ` Paolo Bonzini
2014-11-24 11:49 ` Ming Lei
2014-11-24 11:54 ` Paolo Bonzini
2014-11-24 11:31 ` [Qemu-devel] [PATCH v4 3/3] linux-aio: remove 'node' from 'struct qemu_laiocb' Ming Lei
2014-11-24 11:40 ` [Qemu-devel] [PATCH v4 0/3] linux-aio: fix batch submission Paolo Bonzini
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