From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Stefano Stabellini <sstabellini@kernel.org>, xen-devel@lists.xen.org
Cc: linux-kernel@vger.kernel.org, jgross@suse.com,
Stefano Stabellini <stefano@aporeto.com>
Subject: Re: [PATCH v5 11/13] xen/pvcalls: implement poll command
Date: Tue, 17 Oct 2017 18:15:32 -0400 [thread overview]
Message-ID: <aaa92ecf-b067-2e09-08de-ea3eb5821598@oracle.com> (raw)
In-Reply-To: <1507336227-20477-11-git-send-email-sstabellini@kernel.org>
>
> +static unsigned int pvcalls_front_poll_passive(struct file *file,
> + struct pvcalls_bedata *bedata,
> + struct sock_mapping *map,
> + poll_table *wait)
> +{
> + int notify, req_id, ret;
> + struct xen_pvcalls_request *req;
> +
> + if (test_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
> + (void *)&map->passive.flags)) {
> + uint32_t req_id = READ_ONCE(map->passive.inflight_req_id);
> +
> + if (req_id != PVCALLS_INVALID_ID &&
> + READ_ONCE(bedata->rsp[req_id].req_id) == req_id)
> + return POLLIN | POLLRDNORM;
Same READ_ONCE() question as for an earlier patch.
-boris
> +
> + poll_wait(file, &map->passive.inflight_accept_req, wait);
> + return 0;
> + }
> +
next prev parent reply other threads:[~2017-10-17 22:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-07 0:30 [PATCH v5 00/13] introduce the Xen PV Calls frontend:wq Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 01/13] xen/pvcalls: introduce the pvcalls xenbus frontend Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 02/13] xen/pvcalls: implement frontend disconnect Stefano Stabellini
2017-10-17 16:01 ` Boris Ostrovsky
2017-10-23 22:44 ` Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 03/13] xen/pvcalls: connect to the backend Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 04/13] xen/pvcalls: implement socket command and handle events Stefano Stabellini
2017-10-17 16:59 ` Boris Ostrovsky
2017-10-20 1:26 ` Stefano Stabellini
2017-10-20 14:24 ` Boris Ostrovsky
2017-10-07 0:30 ` [PATCH v5 05/13] xen/pvcalls: implement connect command Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 06/13] xen/pvcalls: implement bind command Stefano Stabellini
2017-10-17 17:39 ` Boris Ostrovsky
2017-10-20 1:31 ` Stefano Stabellini
2017-10-20 14:40 ` Boris Ostrovsky
2017-10-07 0:30 ` [PATCH v5 07/13] xen/pvcalls: implement listen command Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 08/13] xen/pvcalls: implement accept command Stefano Stabellini
2017-10-17 18:34 ` Boris Ostrovsky
2017-10-23 23:03 ` Stefano Stabellini
2017-10-24 13:52 ` Boris Ostrovsky
2017-10-24 16:42 ` Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 09/13] xen/pvcalls: implement sendmsg Stefano Stabellini
2017-10-17 21:06 ` Boris Ostrovsky
2017-10-20 1:41 ` Stefano Stabellini
2017-10-20 14:44 ` Boris Ostrovsky
2017-10-07 0:30 ` [PATCH v5 10/13] xen/pvcalls: implement recvmsg Stefano Stabellini
2017-10-17 21:35 ` Boris Ostrovsky
2017-10-20 1:38 ` Stefano Stabellini
2017-10-20 14:43 ` Boris Ostrovsky
2017-10-07 0:30 ` [PATCH v5 11/13] xen/pvcalls: implement poll command Stefano Stabellini
2017-10-17 22:15 ` Boris Ostrovsky [this message]
2017-10-23 23:06 ` Stefano Stabellini
2017-10-24 14:02 ` Boris Ostrovsky
2017-10-07 0:30 ` [PATCH v5 12/13] xen/pvcalls: implement release command Stefano Stabellini
2017-10-24 14:17 ` Boris Ostrovsky
2017-10-24 17:17 ` Stefano Stabellini
2017-10-07 0:30 ` [PATCH v5 13/13] xen: introduce a Kconfig option to enable the pvcalls frontend Stefano Stabellini
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