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GET /api/patches/816267/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 816267,
    "url": "http://patchwork.ozlabs.org/api/patches/816267/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170920102311.25736-4-el13635@mail.ntua.gr/",
    "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": "<20170920102311.25736-4-el13635@mail.ntua.gr>",
    "list_archive_url": null,
    "date": "2017-09-20T10:23:11",
    "name": "[3/3] block/throttle.c: add bdrv_co_drain_begin/end callbacks",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "bad1a123eea3cf614896c0b1bdc4b4c445af492d",
    "submitter": {
        "id": 71571,
        "url": "http://patchwork.ozlabs.org/api/people/71571/?format=api",
        "name": "Manos Pitsidianakis",
        "email": "el13635@mail.ntua.gr"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20170920102311.25736-4-el13635@mail.ntua.gr/mbox/",
    "series": [
        {
            "id": 4124,
            "url": "http://patchwork.ozlabs.org/api/series/4124/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=4124",
            "date": "2017-09-20T10:23:09",
            "name": "add bdrv_co_drain_begin/end BlockDriver callbacks",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/4124/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/816267/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/816267/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": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)",
        "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 3xy26t254Tz9s82\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 21 Sep 2017 00:24:06 +1000 (AEST)",
            "from localhost ([::1]:48426 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 1dufv2-0002cG-9x\n\tfor incoming@patchwork.ozlabs.org; Wed, 20 Sep 2017 10:24:04 -0400",
            "from eggs.gnu.org ([2001:4830:134:3::10]:41731)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <el13635@mail.ntua.gr>) id 1dufAV-00024W-Up\n\tfor qemu-devel@nongnu.org; Wed, 20 Sep 2017 09:36:00 -0400",
            "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <el13635@mail.ntua.gr>) id 1dufAQ-00010P-DN\n\tfor qemu-devel@nongnu.org; Wed, 20 Sep 2017 09:35:59 -0400",
            "from smtp1.ntua.gr ([2001:648:2000:de::183]:20570)\n\tby eggs.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <el13635@mail.ntua.gr>)\n\tid 1dufAO-0000sM-3Z; Wed, 20 Sep 2017 09:35:52 -0400",
            "from mail.ntua.gr (carp0.noc.ntua.gr [147.102.222.60])\n\t(authenticated bits=0)\n\tby smtp1.ntua.gr (8.15.2/8.15.2) with ESMTPSA id v8KANPPB022779\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256\n\tverify=NOT); Wed, 20 Sep 2017 13:23:25 +0300 (EEST)\n\t(envelope-from el13635@mail.ntua.gr)"
        ],
        "X-Authentication-Warning": "smtp1.ntua.gr: Host carp0.noc.ntua.gr\n\t[147.102.222.60] claimed to be mail.ntua.gr",
        "From": "Manos Pitsidianakis <el13635@mail.ntua.gr>",
        "To": "qemu-devel <qemu-devel@nongnu.org>",
        "Date": "Wed, 20 Sep 2017 13:23:11 +0300",
        "Message-Id": "<20170920102311.25736-4-el13635@mail.ntua.gr>",
        "X-Mailer": "git-send-email 2.11.0",
        "In-Reply-To": "<20170920102311.25736-1-el13635@mail.ntua.gr>",
        "References": "<20170920102311.25736-1-el13635@mail.ntua.gr>",
        "X-detected-operating-system": "by eggs.gnu.org: Genre and OS details not\n\trecognized.",
        "X-Received-From": "2001:648:2000:de::183",
        "Subject": "[Qemu-devel] [PATCH 3/3] block/throttle.c: add\n\tbdrv_co_drain_begin/end callbacks",
        "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>",
        "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>",
        "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>",
        "Cc": "Kevin Wolf <kwolf@redhat.com>, Fam Zheng <famz@redhat.com>,\n\tStefan Hajnoczi <stefanha@redhat.com>,\n\tqemu-block <qemu-block@nongnu.org>, Max Reitz <mreitz@redhat.com>",
        "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": "Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr>\n---\n block/throttle.c | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)",
    "diff": "diff --git a/block/throttle.c b/block/throttle.c\nindex 5bca76300f..833175ac77 100644\n--- a/block/throttle.c\n+++ b/block/throttle.c\n@@ -197,6 +197,21 @@ static bool throttle_recurse_is_first_non_filter(BlockDriverState *bs,\n     return bdrv_recurse_is_first_non_filter(bs->file->bs, candidate);\n }\n \n+static void coroutine_fn throttle_co_drain_begin(BlockDriverState *bs)\n+{\n+    ThrottleGroupMember *tgm = bs->opaque;\n+    if (atomic_fetch_inc(&tgm->io_limits_disabled) == 0) {\n+        throttle_group_restart_tgm(tgm);\n+    }\n+}\n+\n+static void coroutine_fn throttle_co_drain_end(BlockDriverState *bs)\n+{\n+    ThrottleGroupMember *tgm = bs->opaque;\n+    assert(tgm->io_limits_disabled);\n+    atomic_dec(&tgm->io_limits_disabled);\n+}\n+\n static BlockDriver bdrv_throttle = {\n     .format_name                        =   \"throttle\",\n     .protocol_name                      =   \"throttle\",\n@@ -226,6 +241,9 @@ static BlockDriver bdrv_throttle = {\n     .bdrv_reopen_abort                  =   throttle_reopen_abort,\n     .bdrv_co_get_block_status           =   bdrv_co_get_block_status_from_file,\n \n+    .bdrv_co_drain_begin                =   throttle_co_drain_begin,\n+    .bdrv_co_drain_end                  =   throttle_co_drain_end,\n+\n     .is_filter                          =   true,\n };\n \n",
    "prefixes": [
        "3/3"
    ]
}