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GET /api/patches/815727/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 815727,
    "url": "http://patchwork.ozlabs.org/api/patches/815727/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170919165226.23022-13-marcandre.lureau@redhat.com/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api",
        "name": "QEMU Development",
        "link_name": "qemu-devel",
        "list_id": "qemu-devel.nongnu.org",
        "list_email": "qemu-devel@nongnu.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": "",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20170919165226.23022-13-marcandre.lureau@redhat.com>",
    "list_archive_url": null,
    "date": "2017-09-19T16:52:11",
    "name": "[v2,12/27] vhost-user-scsi: remove vdev_scsi_find_by_vu()",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "c17dae174e6baef4d7b5fcbb60967bc657b66232",
    "submitter": {
        "id": 66774,
        "url": "http://patchwork.ozlabs.org/api/people/66774/?format=api",
        "name": "Marc-André Lureau",
        "email": "marcandre.lureau@redhat.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170919165226.23022-13-marcandre.lureau@redhat.com/mbox/",
    "series": [
        {
            "id": 3931,
            "url": "http://patchwork.ozlabs.org/api/series/3931/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=3931",
            "date": "2017-09-19T16:51:59",
            "name": "vhost-user-scsi: code clean-up",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/3931/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/815727/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/815727/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>",
        "X-Original-To": "incoming@patchwork.ozlabs.org",
        "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org",
        "Authentication-Results": [
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            "ext-mx05.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=marcandre.lureau@redhat.com"
        ],
        "Received": [
            "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xxVMM0sRPz9sMN\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 20 Sep 2017 03:33:03 +1000 (AEST)",
            "from localhost ([::1]:44302 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1duMOK-0006S1-SZ\n\tfor incoming@patchwork.ozlabs.org; Tue, 19 Sep 2017 13:33:00 -0400",
            "from eggs.gnu.org ([2001:4830:134:3::10]:46808)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <marcandre.lureau@redhat.com>) id 1duLmF-0005rR-9W\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 12:53:40 -0400",
            "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <marcandre.lureau@redhat.com>) id 1duLmA-000274-TJ\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 12:53:39 -0400",
            "from mx1.redhat.com ([209.132.183.28]:44618)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <marcandre.lureau@redhat.com>)\n\tid 1duLmA-00026J-LC\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 12:53:34 -0400",
            "from smtp.corp.redhat.com\n\t(int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 993C54FD;\n\tTue, 19 Sep 2017 16:53:33 +0000 (UTC)",
            "from localhost (ovpn-112-56.ams2.redhat.com [10.36.112.56])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 862055C541;\n\tTue, 19 Sep 2017 16:53:30 +0000 (UTC)"
        ],
        "DMARC-Filter": "OpenDMARC Filter v1.3.2 mx1.redhat.com 993C54FD",
        "From": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>",
        "To": "qemu-devel@nongnu.org",
        "Date": "Tue, 19 Sep 2017 18:52:11 +0200",
        "Message-Id": "<20170919165226.23022-13-marcandre.lureau@redhat.com>",
        "In-Reply-To": "<20170919165226.23022-1-marcandre.lureau@redhat.com>",
        "References": "<20170919165226.23022-1-marcandre.lureau@redhat.com>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=UTF-8",
        "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.16",
        "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.29]);\n\tTue, 19 Sep 2017 16:53:33 +0000 (UTC)",
        "Content-Transfer-Encoding": "quoted-printable",
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        "X-Received-From": "209.132.183.28",
        "Subject": "[Qemu-devel] [PATCH v2 12/27] vhost-user-scsi: remove\n\tvdev_scsi_find_by_vu()",
        "X-BeenThere": "qemu-devel@nongnu.org",
        "X-Mailman-Version": "2.1.21",
        "Precedence": "list",
        "List-Id": "<qemu-devel.nongnu.org>",
        "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>",
        "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>",
        "List-Post": "<mailto:qemu-devel@nongnu.org>",
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        "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>",
        "Cc": "pbonzini@redhat.com, felipe@nutanix.com, changpeng.liu@intel.com,\n\t=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n\tf4bug@amsat.org",
        "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org",
        "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"
    },
    "content": "The *dev pointer belongs to the vhost_scsi_dev_t parent.\n\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\nReviewed-by: Paolo Bonzini <pbonzini@redhat.com>\n---\n contrib/vhost-user-scsi/vhost-user-scsi.c | 47 +++----------------------------\n 1 file changed, 4 insertions(+), 43 deletions(-)",
    "diff": "diff --git a/contrib/vhost-user-scsi/vhost-user-scsi.c b/contrib/vhost-user-scsi/vhost-user-scsi.c\nindex 17f676bf00..82624a0f17 100644\n--- a/contrib/vhost-user-scsi/vhost-user-scsi.c\n+++ b/contrib/vhost-user-scsi/vhost-user-scsi.c\n@@ -55,8 +55,6 @@\n \n  /* Only 1 LUN and device supported today */\n #define VUS_MAX_LUNS 1\n-#define VUS_MAX_DEVS 1\n-\n #define VUS_ISCSI_INITIATOR \"iqn.2016-11.com.nutanix:vhost-user-scsi\"\n \n typedef struct iscsi_lun {\n@@ -72,8 +70,6 @@ typedef struct vhost_scsi_dev {\n     iscsi_lun_t luns[VUS_MAX_LUNS];\n } vhost_scsi_dev_t;\n \n-static vhost_scsi_dev_t *vhost_scsi_devs[VUS_MAX_DEVS];\n-\n /** glib event loop integration for libvhost-user and misc callbacks **/\n \n QEMU_BUILD_BUG_ON((int)G_IO_IN != (int)VU_WATCH_IN);\n@@ -420,16 +416,13 @@ static int handle_cmd_sync(struct iscsi_context *ctx,\n \n /** libvhost-user callbacks **/\n \n-static vhost_scsi_dev_t *vdev_scsi_find_by_vu(VuDev *vu_dev);\n-\n static void vus_panic_cb(VuDev *vu_dev, const char *buf)\n {\n     vhost_scsi_dev_t *vdev_scsi;\n \n     assert(vu_dev);\n \n-    vdev_scsi = vdev_scsi_find_by_vu(vu_dev);\n-\n+    vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);\n     if (buf) {\n         PERR(\"vu_panic: %s\", buf);\n     }\n@@ -447,12 +440,7 @@ static void vus_add_watch_cb(VuDev *vu_dev, int fd, int vu_evt, vu_watch_cb cb,\n     assert(fd >= 0);\n     assert(cb);\n \n-    vdev_scsi = vdev_scsi_find_by_vu(vu_dev);\n-    if (!vdev_scsi) {\n-        vus_panic_cb(vu_dev, NULL);\n-        return;\n-    }\n-\n+    vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);\n     id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap,\n                                          (gpointer)(uintptr_t)fd);\n     if (id) {\n@@ -473,12 +461,7 @@ static void vus_del_watch_cb(VuDev *vu_dev, int fd)\n     assert(vu_dev);\n     assert(fd >= 0);\n \n-    vdev_scsi = vdev_scsi_find_by_vu(vu_dev);\n-    if (!vdev_scsi) {\n-        vus_panic_cb(vu_dev, NULL);\n-        return;\n-    }\n-\n+    vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);\n     id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap,\n                                          (gpointer)(uintptr_t)fd);\n     if (id) {\n@@ -506,12 +489,7 @@ static void vus_proc_req(VuDev *vu_dev, int idx)\n \n     assert(vu_dev);\n \n-    vdev_scsi = vdev_scsi_find_by_vu(vu_dev);\n-    if (!vdev_scsi) {\n-        vus_panic_cb(vu_dev, NULL);\n-        return;\n-    }\n-\n+    vdev_scsi = container_of(vu_dev, vhost_scsi_dev_t, vu_dev);\n     if (idx < 0 || idx >= VHOST_MAX_NR_VIRTQUEUE) {\n         PERR(\"VQ Index out of range: %d\", idx);\n         vus_panic_cb(vu_dev, NULL);\n@@ -656,22 +634,6 @@ fail:\n \n /** vhost-user-scsi **/\n \n-static vhost_scsi_dev_t *vdev_scsi_find_by_vu(VuDev *vu_dev)\n-{\n-    int i;\n-\n-    assert(vu_dev);\n-\n-    for (i = 0; i < VUS_MAX_DEVS; i++) {\n-        if (&vhost_scsi_devs[i]->vu_dev == vu_dev) {\n-            return vhost_scsi_devs[i];\n-        }\n-    }\n-\n-    PERR(\"Unknown VuDev %p\", vu_dev);\n-    return NULL;\n-}\n-\n static void vdev_scsi_free(vhost_scsi_dev_t *vdev_scsi)\n {\n     if (!vdev_scsi) {\n@@ -790,7 +752,6 @@ int main(int argc, char **argv)\n         goto err;\n     }\n     vdev_scsi = vdev_scsi_new(sock);\n-    vhost_scsi_devs[0] = vdev_scsi;\n \n     if (vdev_scsi_add_iscsi_lun(vdev_scsi, iscsi_uri, 0) != 0) {\n         goto err;\n",
    "prefixes": [
        "v2",
        "12/27"
    ]
}