get:
Show a patch.

patch:
Update a patch.

put:
Update a patch.

GET /api/patches/815887/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 815887,
    "url": "http://patchwork.ozlabs.org/api/patches/815887/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/openvswitch/patch/20170919220125.32535-21-blp@ovn.org/",
    "project": {
        "id": 47,
        "url": "http://patchwork.ozlabs.org/api/projects/47/?format=api",
        "name": "Open vSwitch",
        "link_name": "openvswitch",
        "list_id": "ovs-dev.openvswitch.org",
        "list_email": "ovs-dev@openvswitch.org",
        "web_url": "http://openvswitch.org/",
        "scm_url": "git@github.com:openvswitch/ovs.git",
        "webscm_url": "https://github.com/openvswitch/ovs",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20170919220125.32535-21-blp@ovn.org>",
    "list_archive_url": null,
    "date": "2017-09-19T22:00:53",
    "name": "[ovs-dev,RFC,20/52] ovsdb-server: Drop 'txn' member from struct db.",
    "commit_ref": null,
    "pull_url": null,
    "state": "rfc",
    "archived": false,
    "hash": "b0b08e9fd60398253453eb7aacab7a65d7f4b6ca",
    "submitter": {
        "id": 67603,
        "url": "http://patchwork.ozlabs.org/api/people/67603/?format=api",
        "name": "Ben Pfaff",
        "email": "blp@ovn.org"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/openvswitch/patch/20170919220125.32535-21-blp@ovn.org/mbox/",
    "series": [
        {
            "id": 3975,
            "url": "http://patchwork.ozlabs.org/api/series/3975/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/openvswitch/list/?series=3975",
            "date": "2017-09-19T22:00:34",
            "name": "clustering implementation",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/3975/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/815887/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/815887/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<ovs-dev-bounces@openvswitch.org>",
        "X-Original-To": [
            "incoming@patchwork.ozlabs.org",
            "dev@openvswitch.org"
        ],
        "Delivered-To": [
            "patchwork-incoming@bilbo.ozlabs.org",
            "ovs-dev@mail.linuxfoundation.org"
        ],
        "Authentication-Results": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=openvswitch.org\n\t(client-ip=140.211.169.12; helo=mail.linuxfoundation.org;\n\tenvelope-from=ovs-dev-bounces@openvswitch.org;\n\treceiver=<UNKNOWN>)",
        "Received": [
            "from mail.linuxfoundation.org (mail.linuxfoundation.org\n\t[140.211.169.12])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xxcdM4bjWz9sMN\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 20 Sep 2017 08:15:35 +1000 (AEST)",
            "from mail.linux-foundation.org (localhost [127.0.0.1])\n\tby mail.linuxfoundation.org (Postfix) with ESMTP id 7C5EDCD6;\n\tTue, 19 Sep 2017 22:02:11 +0000 (UTC)",
            "from smtp2.linuxfoundation.org (smtp2.linux-foundation.org\n\t[172.17.192.36])\n\tby mail.linuxfoundation.org (Postfix) with ESMTPS id 3C7F8CCB\n\tfor <dev@openvswitch.org>; Tue, 19 Sep 2017 22:02:06 +0000 (UTC)",
            "from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net\n\t[217.70.183.196])\n\tby smtp2.linuxfoundation.org (Postfix) with ESMTPS id C140C1DC96\n\tfor <dev@openvswitch.org>; Tue, 19 Sep 2017 22:02:05 +0000 (UTC)",
            "from sigabrt.benpfaff.org (unknown [208.91.2.3])\n\t(Authenticated sender: blp@ovn.org)\n\tby relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 77D0917209D;\n\tWed, 20 Sep 2017 00:02:03 +0200 (CEST)"
        ],
        "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6",
        "X-Originating-IP": "208.91.2.3",
        "From": "Ben Pfaff <blp@ovn.org>",
        "To": "dev@openvswitch.org",
        "Date": "Tue, 19 Sep 2017 15:00:53 -0700",
        "Message-Id": "<20170919220125.32535-21-blp@ovn.org>",
        "X-Mailer": "git-send-email 2.10.2",
        "In-Reply-To": "<20170919220125.32535-1-blp@ovn.org>",
        "References": "<20170919220125.32535-1-blp@ovn.org>",
        "X-Spam-Status": "No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_LOW\n\tautolearn=ham version=3.3.1",
        "X-Spam-Checker-Version": "SpamAssassin 3.3.1 (2010-03-16) on\n\tsmtp2.linux-foundation.org",
        "Cc": "Ben Pfaff <blp@ovn.org>",
        "Subject": "[ovs-dev] [PATCH RFC 20/52] ovsdb-server: Drop 'txn' member from\n\tstruct db.",
        "X-BeenThere": "ovs-dev@openvswitch.org",
        "X-Mailman-Version": "2.1.12",
        "Precedence": "list",
        "List-Id": "<ovs-dev.openvswitch.org>",
        "List-Unsubscribe": "<https://mail.openvswitch.org/mailman/options/ovs-dev>,\n\t<mailto:ovs-dev-request@openvswitch.org?subject=unsubscribe>",
        "List-Archive": "<http://mail.openvswitch.org/pipermail/ovs-dev/>",
        "List-Post": "<mailto:ovs-dev@openvswitch.org>",
        "List-Help": "<mailto:ovs-dev-request@openvswitch.org?subject=help>",
        "List-Subscribe": "<https://mail.openvswitch.org/mailman/listinfo/ovs-dev>,\n\t<mailto:ovs-dev-request@openvswitch.org?subject=subscribe>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"us-ascii\"",
        "Content-Transfer-Encoding": "7bit",
        "Sender": "ovs-dev-bounces@openvswitch.org",
        "Errors-To": "ovs-dev-bounces@openvswitch.org"
    },
    "content": "This member was only used in one particular code path, so this commit\nadds code to pass it around as a function parameter instead.\n\nSigned-off-by: Ben Pfaff <blp@ovn.org>\n---\n ovsdb/ovsdb-server.c | 40 ++++++++++++++++------------------------\n 1 file changed, 16 insertions(+), 24 deletions(-)",
    "diff": "diff --git a/ovsdb/ovsdb-server.c b/ovsdb/ovsdb-server.c\nindex 28f258a4ff70..eecd84607408 100644\n--- a/ovsdb/ovsdb-server.c\n+++ b/ovsdb/ovsdb-server.c\n@@ -62,13 +62,9 @@\n VLOG_DEFINE_THIS_MODULE(ovsdb_server);\n \n struct db {\n-    /* Initialized in main(). */\n     char *filename;\n     struct ovsdb_file *file;\n     struct ovsdb *db;\n-\n-    /* Only used by update_remote_status(). */\n-    struct ovsdb_txn *txn;\n };\n \n /* SSL configuration. */\n@@ -833,9 +829,10 @@ update_remote_row(const struct ovsdb_row *row, struct ovsdb_txn *txn,\n }\n \n static void\n-update_remote_rows(const struct shash *all_dbs,\n+update_remote_rows(const struct shash *all_dbs, const struct db *db_,\n                    const char *remote_name,\n-                   const struct ovsdb_jsonrpc_server *jsonrpc)\n+                   const struct ovsdb_jsonrpc_server *jsonrpc,\n+                   struct ovsdb_txn *txn)\n {\n     const struct ovsdb_table *table, *ref_table;\n     const struct ovsdb_column *column;\n@@ -853,7 +850,8 @@ update_remote_rows(const struct shash *all_dbs,\n         return;\n     }\n \n-    if (column->type.key.type != OVSDB_TYPE_UUID\n+    if (db != db_\n+        || column->type.key.type != OVSDB_TYPE_UUID\n         || !column->type.key.u.uuid.refTable\n         || column->type.value.type != OVSDB_TYPE_VOID) {\n         return;\n@@ -871,7 +869,7 @@ update_remote_rows(const struct shash *all_dbs,\n \n             ref_row = ovsdb_table_get_row(ref_table, &datum->keys[i].uuid);\n             if (ref_row) {\n-                update_remote_row(ref_row, db->txn, jsonrpc);\n+                update_remote_row(ref_row, txn, jsonrpc);\n             }\n         }\n     }\n@@ -882,26 +880,20 @@ update_remote_status(const struct ovsdb_jsonrpc_server *jsonrpc,\n                      const struct sset *remotes,\n                      struct shash *all_dbs)\n {\n-    static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);\n-    const char *remote;\n-    struct db *db;\n     struct shash_node *node;\n+    SHASH_FOR_EACH (node, all_dbs) {\n+        struct db *db = node->data;\n+        struct ovsdb_txn *txn = ovsdb_txn_create(db->db);\n \n-    SHASH_FOR_EACH(node, all_dbs) {\n-        db = node->data;\n-        db->txn = ovsdb_txn_create(db->db);\n-    }\n-\n-    /* Iterate over --remote arguments given on command line. */\n-    SSET_FOR_EACH (remote, remotes) {\n-        update_remote_rows(all_dbs, remote, jsonrpc);\n-    }\n+        /* Iterate over --remote arguments given on command line. */\n+        const char *remote;\n+        SSET_FOR_EACH (remote, remotes) {\n+            update_remote_rows(all_dbs, db, remote, jsonrpc, txn);\n+        }\n \n-    SHASH_FOR_EACH(node, all_dbs) {\n-        struct ovsdb_error *error;\n-        db = node->data;\n-        error = ovsdb_txn_commit(db->txn, false);\n+        struct ovsdb_error *error = ovsdb_txn_commit(txn, false);\n         if (error) {\n+            static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);\n             char *msg = ovsdb_error_to_string_free(error);\n             VLOG_ERR_RL(&rl, \"Failed to update remote status: %s\", msg);\n             free(msg);\n",
    "prefixes": [
        "ovs-dev",
        "RFC",
        "20/52"
    ]
}