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[Qemu-devel] [PATCH for-4.0 v4 5/7] colo: check chardev can switch conte


From: Marc-André Lureau
Subject: [Qemu-devel] [PATCH for-4.0 v4 5/7] colo: check chardev can switch context
Date: Thu, 6 Dec 2018 00:37:35 +0400

COLO uses a worker context (iothread) to drive the chardev. All
backends are not able to switch the context, let's report an error in
this case.

Signed-off-by: Marc-André Lureau <address@hidden>
---
 net/colo-compare.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/colo-compare.c b/net/colo-compare.c
index a39191d522..9156ab3349 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -957,6 +957,12 @@ static int find_and_check_chardev(Chardev **chr,
         return 1;
     }
 
+    if (!qemu_chr_has_feature(*chr, QEMU_CHAR_FEATURE_GCONTEXT)) {
+        error_setg(errp, "chardev \"%s\" cannot switch context",
+                   chr_name);
+        return 1;
+    }
+
     return 0;
 }
 
-- 
2.20.0.rc1




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