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[Qemu-devel] [PATCH] qga: unset frozen state if no mount points are froz


From: Chen Hanxiao
Subject: [Qemu-devel] [PATCH] qga: unset frozen state if no mount points are frozen
Date: Sat, 16 Dec 2017 15:34:17 +0800

From: Chen Hanxiao <address@hidden>

If we set mountpoints to qmp_guest_fsfreeze_freeze_list,
we may got nothing to freeze as all mountpoints are
not valid.
Call ga_unset_frozen in this senario.

Cc: Michael Roth <address@hidden>
Signed-off-by: Chen Hanxiao <address@hidden>
---
 qga/commands-posix.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index e809e382eb..9fd51f1d7a 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -1273,6 +1273,12 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool 
has_mountpoints,
     }
 
     free_fs_mount_list(&mounts);
+    /* We may not issue any FIFREEZE here when had mountpoints.
+     * Just unset ga_state here and ready for the next call.
+     */
+    if (has_mountpoints && i == 0) {
+        ga_unset_frozen(ga_state);
+    }
     return i;
 
 error:
-- 
2.14.3




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