Blame SOURCES/kvm-block-Factor-out-qobject_input_visitor_new_flat_conf.patch

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From 8a66fde222f0192c1d9ce215f297964ab34235c7 Mon Sep 17 00:00:00 2001
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From: Markus Armbruster <armbru@redhat.com>
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Date: Mon, 18 Jun 2018 08:43:20 +0200
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Subject: [PATCH 13/54] block: Factor out
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 qobject_input_visitor_new_flat_confused()
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RH-Author: Markus Armbruster <armbru@redhat.com>
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Message-id: <20180618084330.30009-14-armbru@redhat.com>
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Patchwork-id: 80728
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O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 13/23] block: Factor out qobject_input_visitor_new_flat_confused()
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Bugzilla: 1557995
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
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Reviewed-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit af91062ee1408f7f5bb58389d355d29a5040c648)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 block/nbd.c           |  7 ++-----
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 block/nfs.c           |  7 ++-----
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 block/parallels.c     |  7 ++-----
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 block/qcow.c          |  7 ++-----
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 block/qcow2.c         |  7 ++-----
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 block/qed.c           |  7 ++-----
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 block/rbd.c           |  7 ++-----
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 block/sheepdog.c      | 14 ++++----------
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 block/ssh.c           |  7 ++-----
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 block/vhdx.c          |  7 ++-----
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 block/vpc.c           |  7 ++-----
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 include/block/qdict.h |  3 ++-
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 qobject/block-qdict.c | 28 +++++++++++++++++++++++++++-
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 13 files changed, 53 insertions(+), 62 deletions(-)
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diff --git a/block/nbd.c b/block/nbd.c
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index b0be357..10912c3 100644
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--- a/block/nbd.c
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+++ b/block/nbd.c
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@@ -263,7 +263,6 @@ static SocketAddress *nbd_config(BDRVNBDState *s, QDict *options,
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 {
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     SocketAddress *saddr = NULL;
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     QDict *addr = NULL;
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-    QObject *crumpled_addr = NULL;
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     Visitor *iv = NULL;
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     Error *local_err = NULL;
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@@ -273,12 +272,11 @@ static SocketAddress *nbd_config(BDRVNBDState *s, QDict *options,
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         goto done;
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     }
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-    crumpled_addr = qdict_crumple_for_keyval_qiv(addr, errp);
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-    if (!crumpled_addr) {
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+    iv = qobject_input_visitor_new_flat_confused(addr, errp);
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+    if (!iv) {
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         goto done;
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     }
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-    iv = qobject_input_visitor_new_keyval(crumpled_addr);
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     visit_type_SocketAddress(iv, NULL, &saddr, &local_err);
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     if (local_err) {
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         error_propagate(errp, local_err);
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@@ -287,7 +285,6 @@ static SocketAddress *nbd_config(BDRVNBDState *s, QDict *options,
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 done:
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     qobject_unref(addr);
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-    qobject_unref(crumpled_addr);
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     visit_free(iv);
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     return saddr;
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 }
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diff --git a/block/nfs.c b/block/nfs.c
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index 4090d28..1e12958 100644
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--- a/block/nfs.c
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+++ b/block/nfs.c
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@@ -556,19 +556,16 @@ static BlockdevOptionsNfs *nfs_options_qdict_to_qapi(QDict *options,
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                                                      Error **errp)
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 {
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     BlockdevOptionsNfs *opts = NULL;
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-    QObject *crumpled = NULL;
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     Visitor *v;
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     Error *local_err = NULL;
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-    crumpled = qdict_crumple_for_keyval_qiv(options, errp);
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-    if (crumpled == NULL) {
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+    v = qobject_input_visitor_new_flat_confused(options, errp);
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+    if (!v) {
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         return NULL;
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     }
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-    v = qobject_input_visitor_new_keyval(crumpled);
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     visit_type_BlockdevOptionsNfs(v, NULL, &opts, &local_err);
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     visit_free(v);
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-    qobject_unref(crumpled);
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     if (local_err) {
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         return NULL;
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diff --git a/block/parallels.c b/block/parallels.c
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index 1c96c39..b6ebe36 100644
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--- a/block/parallels.c
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+++ b/block/parallels.c
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@@ -615,7 +615,6 @@ static int coroutine_fn parallels_co_create_opts(const char *filename,
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     Error *local_err = NULL;
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     BlockDriverState *bs = NULL;
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     QDict *qdict;
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-    QObject *qobj;
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     Visitor *v;
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     int ret;
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@@ -651,14 +650,12 @@ static int coroutine_fn parallels_co_create_opts(const char *filename,
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     qdict_put_str(qdict, "driver", "parallels");
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     qdict_put_str(qdict, "file", bs->node_name);
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-    qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (!qobj) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto done;
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     }
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-    v = qobject_input_visitor_new_keyval(qobj);
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-    qobject_unref(qobj);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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diff --git a/block/qcow.c b/block/qcow.c
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index 43a595a..4b3bc31 100644
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--- a/block/qcow.c
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+++ b/block/qcow.c
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@@ -945,7 +945,6 @@ static int coroutine_fn qcow_co_create_opts(const char *filename,
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     BlockdevCreateOptions *create_options = NULL;
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     BlockDriverState *bs = NULL;
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     QDict *qdict;
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-    QObject *qobj;
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     Visitor *v;
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     const char *val;
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     Error *local_err = NULL;
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@@ -995,14 +994,12 @@ static int coroutine_fn qcow_co_create_opts(const char *filename,
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     qdict_put_str(qdict, "driver", "qcow");
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     qdict_put_str(qdict, "file", bs->node_name);
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-    qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (!qobj) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto fail;
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     }
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-    v = qobject_input_visitor_new_keyval(qobj);
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-    qobject_unref(qobj);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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diff --git a/block/qcow2.c b/block/qcow2.c
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index ede52a8..35842c5 100644
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--- a/block/qcow2.c
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+++ b/block/qcow2.c
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@@ -3068,7 +3068,6 @@ static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opt
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 {
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     BlockdevCreateOptions *create_options = NULL;
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     QDict *qdict;
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-    QObject *qobj;
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     Visitor *v;
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     BlockDriverState *bs = NULL;
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     Error *local_err = NULL;
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@@ -3139,14 +3138,12 @@ static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opt
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     qdict_put_str(qdict, "file", bs->node_name);
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     /* Now get the QAPI type BlockdevCreateOptions */
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-    qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (!qobj) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto finish;
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     }
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-    v = qobject_input_visitor_new_keyval(qobj);
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-    qobject_unref(qobj);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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diff --git a/block/qed.c b/block/qed.c
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index 3818888..4c5d7e8 100644
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--- a/block/qed.c
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+++ b/block/qed.c
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@@ -723,7 +723,6 @@ static int coroutine_fn bdrv_qed_co_create_opts(const char *filename,
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 {
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     BlockdevCreateOptions *create_options = NULL;
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     QDict *qdict;
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-    QObject *qobj;
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     Visitor *v;
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     BlockDriverState *bs = NULL;
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     Error *local_err = NULL;
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@@ -763,14 +762,12 @@ static int coroutine_fn bdrv_qed_co_create_opts(const char *filename,
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     qdict_put_str(qdict, "driver", "qed");
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     qdict_put_str(qdict, "file", bs->node_name);
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-    qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (!qobj) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto fail;
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     }
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-    v = qobject_input_visitor_new_keyval(qobj);
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-    qobject_unref(qobj);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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diff --git a/block/rbd.c b/block/rbd.c
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index 0b5455f..c834d72 100644
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--- a/block/rbd.c
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+++ b/block/rbd.c
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@@ -623,7 +623,6 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
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     BDRVRBDState *s = bs->opaque;
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     BlockdevOptionsRbd *opts = NULL;
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     Visitor *v;
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-    QObject *crumpled = NULL;
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     const QDictEntry *e;
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     Error *local_err = NULL;
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     char *keypairs, *secretid;
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@@ -640,16 +639,14 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
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     }
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     /* Convert the remaining options into a QAPI object */
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-    crumpled = qdict_crumple_for_keyval_qiv(options, errp);
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-    if (crumpled == NULL) {
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+    v = qobject_input_visitor_new_flat_confused(options, errp);
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+    if (!v) {
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         r = -EINVAL;
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         goto out;
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     }
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-    v = qobject_input_visitor_new_keyval(crumpled);
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     visit_type_BlockdevOptionsRbd(v, NULL, &opts, &local_err);
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     visit_free(v);
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-    qobject_unref(crumpled);
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     if (local_err) {
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         error_propagate(errp, local_err);
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diff --git a/block/sheepdog.c b/block/sheepdog.c
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index dd582d5..d1c9bf5 100644
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--- a/block/sheepdog.c
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+++ b/block/sheepdog.c
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@@ -539,19 +539,17 @@ static void sd_aio_setup(SheepdogAIOCB *acb, BDRVSheepdogState *s,
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 static SocketAddress *sd_server_config(QDict *options, Error **errp)
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 {
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     QDict *server = NULL;
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-    QObject *crumpled_server = NULL;
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     Visitor *iv = NULL;
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     SocketAddress *saddr = NULL;
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     Error *local_err = NULL;
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     qdict_extract_subqdict(options, &server, "server.");
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-    crumpled_server = qdict_crumple_for_keyval_qiv(server, errp);
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-    if (!crumpled_server) {
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+    iv = qobject_input_visitor_new_flat_confused(server, errp);
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+    if (!iv) {
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         goto done;
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     }
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-    iv = qobject_input_visitor_new_keyval(crumpled_server);
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     visit_type_SocketAddress(iv, NULL, &saddr, &local_err);
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     if (local_err) {
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         error_propagate(errp, local_err);
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@@ -560,7 +558,6 @@ static SocketAddress *sd_server_config(QDict *options, Error **errp)
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 done:
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     visit_free(iv);
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-    qobject_unref(crumpled_server);
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     qobject_unref(server);
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     return saddr;
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 }
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@@ -2174,7 +2171,6 @@ static int coroutine_fn sd_co_create_opts(const char *filename, QemuOpts *opts,
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 {
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     BlockdevCreateOptions *create_options = NULL;
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     QDict *qdict, *location_qdict;
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-    QObject *crumpled;
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     Visitor *v;
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     const char *redundancy;
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     Error *local_err = NULL;
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@@ -2210,16 +2206,14 @@ static int coroutine_fn sd_co_create_opts(const char *filename, QemuOpts *opts,
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     }
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     /* Get the QAPI object */
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-    crumpled = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (crumpled == NULL) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto fail;
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     }
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-    v = qobject_input_visitor_new_keyval(crumpled);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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-    qobject_unref(crumpled);
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     if (local_err) {
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         error_propagate(errp, local_err);
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diff --git a/block/ssh.c b/block/ssh.c
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index 2fc7cd9..aab6996 100644
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--- a/block/ssh.c
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+++ b/block/ssh.c
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@@ -606,7 +606,6 @@ static BlockdevOptionsSsh *ssh_parse_options(QDict *options, Error **errp)
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     BlockdevOptionsSsh *result = NULL;
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     QemuOpts *opts = NULL;
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     Error *local_err = NULL;
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-    QObject *crumpled;
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     const QDictEntry *e;
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     Visitor *v;
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@@ -623,15 +622,13 @@ static BlockdevOptionsSsh *ssh_parse_options(QDict *options, Error **errp)
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     }
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     /* Create the QAPI object */
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-    crumpled = qdict_crumple_for_keyval_qiv(options, errp);
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-    if (crumpled == NULL) {
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+    v = qobject_input_visitor_new_flat_confused(options, errp);
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+    if (!v) {
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         goto fail;
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     }
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-    v = qobject_input_visitor_new_keyval(crumpled);
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     visit_type_BlockdevOptionsSsh(v, NULL, &result, &local_err);
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     visit_free(v);
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-    qobject_unref(crumpled);
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     if (local_err) {
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         error_propagate(errp, local_err);
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diff --git a/block/vhdx.c b/block/vhdx.c
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index 728d8b3..6731298 100644
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--- a/block/vhdx.c
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+++ b/block/vhdx.c
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@@ -1964,7 +1964,6 @@ static int coroutine_fn vhdx_co_create_opts(const char *filename,
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 {
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     BlockdevCreateOptions *create_options = NULL;
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     QDict *qdict;
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-    QObject *qobj;
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     Visitor *v;
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     BlockDriverState *bs = NULL;
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     Error *local_err = NULL;
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@@ -2003,14 +2002,12 @@ static int coroutine_fn vhdx_co_create_opts(const char *filename,
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     qdict_put_str(qdict, "driver", "vhdx");
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     qdict_put_str(qdict, "file", bs->node_name);
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-    qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (!qobj) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto fail;
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     }
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-    v = qobject_input_visitor_new_keyval(qobj);
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-    qobject_unref(qobj);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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diff --git a/block/vpc.c b/block/vpc.c
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index a9bb041..bf294ab 100644
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--- a/block/vpc.c
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+++ b/block/vpc.c
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@@ -1082,7 +1082,6 @@ static int coroutine_fn vpc_co_create_opts(const char *filename,
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 {
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     BlockdevCreateOptions *create_options = NULL;
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     QDict *qdict;
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-    QObject *qobj;
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     Visitor *v;
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     BlockDriverState *bs = NULL;
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     Error *local_err = NULL;
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@@ -1119,14 +1118,12 @@ static int coroutine_fn vpc_co_create_opts(const char *filename,
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     qdict_put_str(qdict, "driver", "vpc");
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     qdict_put_str(qdict, "file", bs->node_name);
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-    qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
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-    if (!qobj) {
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+    v = qobject_input_visitor_new_flat_confused(qdict, errp);
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+    if (!v) {
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         ret = -EINVAL;
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         goto fail;
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     }
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-    v = qobject_input_visitor_new_keyval(qobj);
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-    qobject_unref(qobj);
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     visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
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     visit_free(v);
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diff --git a/include/block/qdict.h b/include/block/qdict.h
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index 47d9638..d8cb502 100644
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--- a/include/block/qdict.h
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+++ b/include/block/qdict.h
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@@ -21,7 +21,6 @@ void qdict_extract_subqdict(QDict *src, QDict **dst, const char *start);
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 void qdict_array_split(QDict *src, QList **dst);
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 int qdict_array_entries(QDict *src, const char *subqdict);
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 QObject *qdict_crumple(const QDict *src, Error **errp);
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-QObject *qdict_crumple_for_keyval_qiv(QDict *qdict, Error **errp);
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 void qdict_flatten(QDict *qdict);
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 typedef struct QDictRenames {
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@@ -30,4 +29,6 @@ typedef struct QDictRenames {
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 } QDictRenames;
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 bool qdict_rename_keys(QDict *qdict, const QDictRenames *renames, Error **errp);
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+Visitor *qobject_input_visitor_new_flat_confused(QDict *qdict,
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+                                                 Error **errp);
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 #endif
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diff --git a/qobject/block-qdict.c b/qobject/block-qdict.c
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index aba372c..41f39ab 100644
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--- a/qobject/block-qdict.c
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+++ b/qobject/block-qdict.c
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@@ -13,6 +13,7 @@
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 #include "qapi/qmp/qlist.h"
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 #include "qapi/qmp/qnum.h"
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 #include "qapi/qmp/qstring.h"
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+#include "qapi/qobject-input-visitor.h"
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 #include "qemu/cutils.h"
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 #include "qapi/error.h"
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@@ -529,7 +530,7 @@ QObject *qdict_crumple(const QDict *src, Error **errp)
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  * used for anything else, and it should go away once the block
357786
  * subsystem has been cleaned up.
357786
  */
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-QObject *qdict_crumple_for_keyval_qiv(QDict *src, Error **errp)
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+static QObject *qdict_crumple_for_keyval_qiv(QDict *src, Error **errp)
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 {
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     QDict *tmp = NULL;
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     char *buf;
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@@ -695,3 +696,28 @@ bool qdict_rename_keys(QDict *qdict, const QDictRenames *renames, Error **errp)
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     }
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     return true;
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 }
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+
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+/*
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+ * Create a QObject input visitor for flat @qdict with possibly
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+ * confused scalar types.
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+ *
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+ * The block subsystem uses this function to visit its flat QDict with
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+ * possibly confused scalar types.  It should not be used for anything
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+ * else, and it should go away once the block subsystem has been
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+ * cleaned up.
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+ */
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+Visitor *qobject_input_visitor_new_flat_confused(QDict *qdict,
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+                                                 Error **errp)
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+{
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+    QObject *crumpled;
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+    Visitor *v;
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+
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+    crumpled = qdict_crumple_for_keyval_qiv(qdict, errp);
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+    if (!crumpled) {
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+        return NULL;
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+    }
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+
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+    v = qobject_input_visitor_new_keyval(crumpled);
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+    qobject_unref(crumpled);
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+    return v;
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+}
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-- 
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1.8.3.1
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