mirror of https://gitee.com/openkylin/qemu.git
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>
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@ -1274,6 +1274,12 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
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}
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free_fs_mount_list(&mounts);
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/* We may not issue any FIFREEZE here.
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* Just unset ga_state here and ready for the next call.
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*/
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if (i == 0) {
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ga_unset_frozen(ga_state);
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}
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return i;
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error:
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@ -435,7 +435,9 @@
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# for up to 10 seconds by VSS.
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#
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# Returns: Number of file systems currently frozen. On error, all filesystems
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# will be thawed.
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# will be thawed. If no filesystems are frozen as a result of this call,
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# then @guest-fsfreeze-status will remain "thawed" and calling
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# @guest-fsfreeze-thaw is not necessary.
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#
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# Since: 0.15.0
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##
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