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authorChen Hanxiao <chenhanxiao@gmail.com>2018-06-14 16:10:13 +0800
committerMichael Roth <mdroth@linux.vnet.ibm.com>2018-07-03 10:55:18 -0500
commit65650f0182c11a000d488a3b8e8e6ad071853f31 (patch)
tree45ba32ba8d38794215a866619a9cf99c57bb8a4e /qga
parentb07cd3e748b3f27a17c27afeee578dc4eedb8dd5 (diff)
qga: unset frozen state if no mount points are frozen
If we set mountpoints to qmp_guest_fsfreeze_freeze_list, we may got nothing to freeze as all mountpoints are not valid. So call ga_unset_frozen in this senario. Also, if we return 0 frozen fs, there is no need to call guest-fsfreeze-thaw. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'qga')
-rw-r--r--qga/commands-posix.c6
-rw-r--r--qga/qapi-schema.json4
2 files changed, 9 insertions, 1 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index eae817191b..594d21ef3e 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -1274,6 +1274,12 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
}
free_fs_mount_list(&mounts);
+ /* We may not issue any FIFREEZE here.
+ * Just unset ga_state here and ready for the next call.
+ */
+ if (i == 0) {
+ ga_unset_frozen(ga_state);
+ }
return i;
error:
diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 17884c7c70..1045cef386 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -435,7 +435,9 @@
# for up to 10 seconds by VSS.
#
# Returns: Number of file systems currently frozen. On error, all filesystems
-# will be thawed.
+# will be thawed. If no filesystems are frozen as a result of this call,
+# then @guest-fsfreeze-status will remain "thawed" and calling
+# @guest-fsfreeze-thaw is not necessary.
#
# Since: 0.15.0
##