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From: Juan Quintela <quintela@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Eduardo Habkost" <eduardo@habkost.net>,
	"Yanan Wang" <wangyanan55@huawei.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	"Juan Quintela" <quintela@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Eric Blake" <eblake@redhat.com>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
	"Leonardo Bras" <leobras@redhat.com>,
	"Li Xiaohui" <xiaohli@redhat.com>, "Peter Xu" <peterx@redhat.com>
Subject: [PATCH v5 2/8] migration/multifd: Remove unnecessary assignment on multifd_load_cleanup()
Date: Mon, 13 Feb 2023 09:57:40 +0100	[thread overview]
Message-ID: <20230213085746.75586-3-quintela@redhat.com> (raw)
In-Reply-To: <20230213085746.75586-1-quintela@redhat.com>

From: Leonardo Bras <leobras@redhat.com>

Before assigning "p->quit = true" for every multifd channel,
multifd_load_cleanup() will call multifd_recv_terminate_threads() which
already does the same assignment, while protected by a mutex.

So there is no point doing the same assignment again.

Fixes: b5eea99ec2 ("migration: Add yank feature")
Reported-by: Li Xiaohui <xiaohli@redhat.com>
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 migration/multifd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/migration/multifd.c b/migration/multifd.c
index cac8496edc..3dd569d0c9 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -1025,7 +1025,6 @@ void multifd_load_cleanup(void)
         MultiFDRecvParams *p = &multifd_recv_state->params[i];
 
         if (p->running) {
-            p->quit = true;
             /*
              * multifd_recv_thread may hung at MULTIFD_FLAG_SYNC handle code,
              * however try to wakeup it without harm in cleanup phase.
-- 
2.39.1



  parent reply	other threads:[~2023-02-13  8:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-13  8:57 [PATCH v5 0/8] Eliminate multifd flush Juan Quintela
2023-02-13  8:57 ` [PATCH v5 1/8] migration/multifd: Change multifd_load_cleanup() signature and usage Juan Quintela
2023-02-13  8:57 ` Juan Quintela [this message]
2023-02-13  8:57 ` [PATCH v5 3/8] migration/multifd: Join all multifd threads in order to avoid leaks Juan Quintela
2023-02-13  8:57 ` [PATCH v5 4/8] migration/multifd: Move load_cleanup inside incoming_state_destroy Juan Quintela
2023-02-13  8:57 ` [PATCH v5 5/8] ram: Document migration ram flags Juan Quintela
2023-02-13  8:57 ` [PATCH v5 6/8] multifd: Create property multifd-sync-after-each-section Juan Quintela
2023-02-13  9:02 ` [PATCH v5 0/8] Eliminate multifd flush Juan Quintela

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