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From 38f4c8c2161484794015df1d44a8e84d7e4cddb3 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Date: Wed, 10 Oct 2018 20:21:51 +0100
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Subject: [PATCH 25/49] test-bdrv-drain: Test bdrv_append() to drained node
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Message-id: <20181010202213.7372-13-kwolf@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Patchwork-id: 82602
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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O-Subject: [RHEL-8 qemu-kvm PATCH 22/44] test-bdrv-drain: Test bdrv_append() to drained node
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Bugzilla: 1637976
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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RH-Acked-by: John Snow <jsnow@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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(cherry picked from commit b994c5bc515fe611885113e7cfa7e87817bfd4e2)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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---
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tests/test-bdrv-drain.c | 43 +++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 43 insertions(+)
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diff --git a/tests/test-bdrv-drain.c b/tests/test-bdrv-drain.c
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index 1c8162f..9bcb3c7 100644
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--- a/tests/test-bdrv-drain.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+++ b/tests/test-bdrv-drain.c
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@@ -1245,6 +1245,47 @@ static void test_detach_by_driver_cb(void)
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test_detach_indirect(false);
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}
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+static void test_append_to_drained(void)
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+{
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+ BlockBackend *blk;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ BlockDriverState *base, *overlay;
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+ BDRVTestState *base_s, *overlay_s;
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+
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+ blk = blk_new(BLK_PERM_ALL, BLK_PERM_ALL);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ base = bdrv_new_open_driver(&bdrv_test, "base", BDRV_O_RDWR, &error_abort);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ base_s = base->opaque;
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+ blk_insert_bs(blk, base, &error_abort);
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+
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+ overlay = bdrv_new_open_driver(&bdrv_test, "overlay", BDRV_O_RDWR,
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+ &error_abort);
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+ overlay_s = overlay->opaque;
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+
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+ do_drain_begin(BDRV_DRAIN, base);
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+ g_assert_cmpint(base->quiesce_counter, ==, 1);
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+ g_assert_cmpint(base_s->drain_count, ==, 1);
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+ g_assert_cmpint(base->in_flight, ==, 0);
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+
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+ /* Takes ownership of overlay, so we don't have to unref it later */
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+ bdrv_append(overlay, base, &error_abort);
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+ g_assert_cmpint(base->in_flight, ==, 0);
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+ g_assert_cmpint(overlay->in_flight, ==, 0);
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+
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+ g_assert_cmpint(base->quiesce_counter, ==, 1);
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+ g_assert_cmpint(base_s->drain_count, ==, 1);
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+ g_assert_cmpint(overlay->quiesce_counter, ==, 1);
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+ g_assert_cmpint(overlay_s->drain_count, ==, 1);
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+
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+ do_drain_end(BDRV_DRAIN, base);
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+
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+ g_assert_cmpint(base->quiesce_counter, ==, 0);
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+ g_assert_cmpint(base_s->drain_count, ==, 0);
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+ g_assert_cmpint(overlay->quiesce_counter, ==, 0);
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+ g_assert_cmpint(overlay_s->drain_count, ==, 0);
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+
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+ bdrv_unref(base);
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+ blk_unref(blk);
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+}
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+
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int main(int argc, char **argv)
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{
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int ret;
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@@ -1303,6 +1344,8 @@ int main(int argc, char **argv)
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g_test_add_func("/bdrv-drain/detach/parent_cb", test_detach_by_parent_cb);
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g_test_add_func("/bdrv-drain/detach/driver_cb", test_detach_by_driver_cb);
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+ g_test_add_func("/bdrv-drain/attach/drain", test_append_to_drained);
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+
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ret = g_test_run();
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qemu_event_destroy(&done_event);
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return ret;
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--
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1.8.3.1
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