From 6d23d16153f4fe9c01c9f2e02620ce324219b027 Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Wed, 10 Oct 2018 20:08:39 +0100 Subject: [PATCH 08/49] tests/test-bdrv-drain: bdrv_drain_all() works in coroutines now RH-Author: Kevin Wolf Message-id: <20181010200843.6710-6-kwolf@redhat.com> Patchwork-id: 82582 O-Subject: [RHEL-8 qemu-kvm PATCH 05/44] tests/test-bdrv-drain: bdrv_drain_all() works in coroutines now Bugzilla: 1637976 RH-Acked-by: Max Reitz RH-Acked-by: John Snow RH-Acked-by: Thomas Huth Since we use bdrv_do_drained_begin/end() for bdrv_drain_all_begin/end(), coroutine context is automatically left with a BH, preventing the deadlocks that made bdrv_drain_all*() unsafe in coroutine context. Now that we even removed the old polling code as dead code, it's obvious that it's compatible now. Enable the coroutine test cases for bdrv_drain_all(). Signed-off-by: Kevin Wolf Reviewed-by: Stefan Hajnoczi (cherry picked from commit 6d0252f2f9cb49925deb1c41101462c9481dfc90) Signed-off-by: Kevin Wolf Signed-off-by: Danilo C. L. de Paula --- tests/test-bdrv-drain.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/tests/test-bdrv-drain.c b/tests/test-bdrv-drain.c index f1276a1..f5d85c9 100644 --- a/tests/test-bdrv-drain.c +++ b/tests/test-bdrv-drain.c @@ -233,6 +233,11 @@ static void test_drv_cb_drain_subtree(void) test_drv_cb_common(BDRV_SUBTREE_DRAIN, true); } +static void test_drv_cb_co_drain_all(void) +{ + call_in_coroutine(test_drv_cb_drain_all); +} + static void test_drv_cb_co_drain(void) { call_in_coroutine(test_drv_cb_drain); @@ -289,6 +294,11 @@ static void test_quiesce_drain_subtree(void) test_quiesce_common(BDRV_SUBTREE_DRAIN, true); } +static void test_quiesce_co_drain_all(void) +{ + call_in_coroutine(test_quiesce_drain_all); +} + static void test_quiesce_co_drain(void) { call_in_coroutine(test_quiesce_drain); @@ -795,7 +805,8 @@ int main(int argc, char **argv) g_test_add_func("/bdrv-drain/driver-cb/drain_subtree", test_drv_cb_drain_subtree); - // XXX bdrv_drain_all() doesn't work in coroutine context + g_test_add_func("/bdrv-drain/driver-cb/co/drain_all", + test_drv_cb_co_drain_all); g_test_add_func("/bdrv-drain/driver-cb/co/drain", test_drv_cb_co_drain); g_test_add_func("/bdrv-drain/driver-cb/co/drain_subtree", test_drv_cb_co_drain_subtree); @@ -806,7 +817,8 @@ int main(int argc, char **argv) g_test_add_func("/bdrv-drain/quiesce/drain_subtree", test_quiesce_drain_subtree); - // XXX bdrv_drain_all() doesn't work in coroutine context + g_test_add_func("/bdrv-drain/quiesce/co/drain_all", + test_quiesce_co_drain_all); g_test_add_func("/bdrv-drain/quiesce/co/drain", test_quiesce_co_drain); g_test_add_func("/bdrv-drain/quiesce/co/drain_subtree", test_quiesce_co_drain_subtree); -- 1.8.3.1