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From: Stefan Hajnoczi <stefanha@redhat.com>
To: qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>,
	qemu-block@nongnu.org,
	Emanuele Giuseppe Esposito <eesposit@redhat.com>,
	Markus Armbruster <armbru@redhat.com>,
	Kevin Wolf <kwolf@redhat.com>,
	Stefan Hajnoczi <stefanha@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	Hanna Reitz <hreitz@redhat.com>
Subject: [PATCH 5/6] hmp: convert handle_hmp_command() to AIO_WAIT_WHILE_UNLOCKED()
Date: Wed,  1 Mar 2023 15:58:00 -0500	[thread overview]
Message-ID: <20230301205801.2453491-6-stefanha@redhat.com> (raw)
In-Reply-To: <20230301205801.2453491-1-stefanha@redhat.com>

The HMP monitor runs in the main loop thread. Calling
AIO_WAIT_WHILE(qemu_get_aio_context(), ...) from the main loop thread is
equivalent to AIO_WAIT_WHILE_UNLOCKED(NULL, ...) because neither unlocks
the AioContext and the latter's assertion that we're in the main loop
succeeds.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 monitor/hmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/monitor/hmp.c b/monitor/hmp.c
index 2aa85d3982..5ecbdac802 100644
--- a/monitor/hmp.c
+++ b/monitor/hmp.c
@@ -1167,7 +1167,7 @@ void handle_hmp_command(MonitorHMP *mon, const char *cmdline)
         Coroutine *co = qemu_coroutine_create(handle_hmp_command_co, &data);
         monitor_set_cur(co, &mon->common);
         aio_co_enter(qemu_get_aio_context(), co);
-        AIO_WAIT_WHILE(qemu_get_aio_context(), !data.done);
+        AIO_WAIT_WHILE_UNLOCKED(NULL, !data.done);
     }
 
     qobject_unref(qdict);
-- 
2.39.2



  parent reply	other threads:[~2023-03-01 20:59 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-01 20:57 [PATCH 0/6] block: switch to AIO_WAIT_WHILE_UNLOCKED() where possible Stefan Hajnoczi
2023-03-01 20:57 ` [PATCH 1/6] block: don't acquire AioContext lock in bdrv_drain_all() Stefan Hajnoczi
2023-03-07 17:17   ` Kevin Wolf
2023-03-07 19:20     ` Stefan Hajnoczi
2023-03-08  8:48       ` Kevin Wolf
2023-03-08 14:26         ` Stefan Hajnoczi
2023-03-08 17:25           ` Kevin Wolf
2023-03-09 12:38             ` Stefan Hajnoczi
2023-03-01 20:57 ` [PATCH 2/6] block: convert blk_exp_close_all_type() to AIO_WAIT_WHILE_UNLOCKED() Stefan Hajnoczi
2023-03-02 10:36   ` Philippe Mathieu-Daudé
2023-03-02 13:08     ` Stefan Hajnoczi
2023-03-02 14:16       ` Philippe Mathieu-Daudé
2023-03-02 16:00         ` Stefan Hajnoczi
2023-03-07 20:37   ` Philippe Mathieu-Daudé
2023-03-01 20:57 ` [PATCH 3/6] block: convert bdrv_graph_wrlock() " Stefan Hajnoczi
2023-03-02 10:19   ` Philippe Mathieu-Daudé
2023-03-07 20:37     ` Philippe Mathieu-Daudé
2023-03-01 20:57 ` [PATCH 4/6] block: convert bdrv_drain_all_begin() " Stefan Hajnoczi
2023-03-07 20:37   ` Philippe Mathieu-Daudé
2023-03-01 20:58 ` Stefan Hajnoczi [this message]
2023-03-02  7:17   ` [PATCH 5/6] hmp: convert handle_hmp_command() " Markus Armbruster
2023-03-02 13:22     ` Stefan Hajnoczi
2023-03-02 15:02       ` Markus Armbruster
2023-03-02 15:48         ` Stefan Hajnoczi
2023-03-02 16:25           ` Markus Armbruster
2023-03-07 20:39   ` Philippe Mathieu-Daudé
2023-03-01 20:58 ` [PATCH 6/6] monitor: convert monitor_cleanup() " Stefan Hajnoczi
2023-03-02  7:20   ` Markus Armbruster
2023-03-02 16:26     ` Markus Armbruster
2023-03-07 20:39   ` Philippe Mathieu-Daudé
2023-03-07 17:29 ` [PATCH 0/6] block: switch to AIO_WAIT_WHILE_UNLOCKED() where possible Kevin Wolf

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