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From: Laszlo Ersek <lersek@redhat.com>
To: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Cc: "libaiqing@huawei.com" <libaiqing@huawei.com>,
	"ghammer@redhat.com" <ghammer@redhat.com>,
	"stefanha@gmail.com" <stefanha@gmail.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	"mdroth@linux.vnet.ibm.com" <mdroth@linux.vnet.ibm.com>,
	"vrozenfe@redhat.com" <vrozenfe@redhat.com>,
	"lcapitulino@redhat.com" <lcapitulino@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Seiji Aguchi <seiji.aguchi@hds.com>,
	"areis@redhat.com" <areis@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v5 10/11] qemu-ga: Install Windows VSS provider on `qemu-ga -s install'
Date: Mon, 08 Jul 2013 15:58:48 +0200	[thread overview]
Message-ID: <51DAC598.5060902@redhat.com> (raw)
In-Reply-To: <CDFC732A.38EA%Tomoki.Sekiyama@hds.com>

On 07/05/13 19:06, Tomoki Sekiyama wrote:
> On 7/4/13 8:54 , "Paolo Bonzini" <pbonzini@redhat.com> wrote:
> 
>> Il 03/07/2013 18:19, Tomoki Sekiyama ha scritto:
>>> On 7/3/13 11:58 , "Paolo Bonzini" <pbonzini@redhat.com> wrote:
>>>
>>>> Il 03/07/2013 17:49, Tomoki Sekiyama ha scritto:
>>>>> -                return ga_install_service(path, log_filepath,
>>>>> fixed_state_dir);
>>>>> +                if (ga_install_vss_provider()) {
>>>>> +                    return EXIT_FAILURE;
>>>>> +                }
>>>>> +                if (ga_install_service(path, log_filepath,
>>>>> fixed_state_dir)) {
>>>>> +                    ga_uninstall_vss_provider();
>>>>> +                    return EXIT_FAILURE;
>>>>> +                }
>>>>> +                return 0;
>>>>>              } else if (strcmp(service, "uninstall") == 0) {
>>>>> +                ga_uninstall_vss_provider();
>>>>>                  return ga_uninstall_service();
>>>>
>>>> I think this shouldn't be a hard failure.  Only the freeze/thaw
>>>> commands
>>>> should fail.
>>>>
>>>> Paolo
>>>
>>> Do you mean that qemu-ga should work without qga-provider.dll etc.
>>> even if it is configured --with-vss-sdk ?
>>
>> Yes, and I'm even wondering if we should move all VSS code to a DLL
>> (provider and requestor---they are very tied to each other anyway
>> because of hEventFrozen/hEventThaw), and have qemu-ga simply look for
>> qga-provider.dll dropped into the executable directory.
>>
>> Then qemu-ga can look for it even if it is not configured --with-vss-sdk.
> 
> Hm, that sounds reasonable.
> 
> I will try on moving the requestor into qga-provider.dll at next
> iteration. 

Is it OK with you if I skip reviewing v5 then? If the v5->v6
reorganization is going to be intrusive (ie. I won't be able to do a
patch-by-patch interdiff), then I'd prefer skipping v5.

Thanks,
Laszlo

  reply	other threads:[~2013-07-08 14:33 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-03 15:49 [Qemu-devel] [PATCH v5 00/11] qemu-ga: fsfreeze on Windows using VSS Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 01/11] configure: Support configuring C++ compiler Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 02/11] Add c++ keywords to QAPI helper script Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 03/11] checkpatch.pl: Check .cpp files Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 04/11] Add a script to extract VSS SDK headers on POSIX system Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 05/11] qemu-ga: Add configure options to specify path to Windows/VSS SDK Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 06/11] qemu-ga: Add Windows VSS provider to quiesce applications on fsfreeze Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 07/11] error: Add error_set_win32 and error_setg_win32 Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 08/11] qemu-ga: Add Windows VSS requester to quiesce applications and filesystems Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 09/11] qemu-ga: Call Windows VSS requester in fsfreeze command handler Tomoki Sekiyama
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 10/11] qemu-ga: Install Windows VSS provider on `qemu-ga -s install' Tomoki Sekiyama
2013-07-03 15:58   ` Paolo Bonzini
2013-07-03 16:19     ` Tomoki Sekiyama
2013-07-04 12:54       ` Paolo Bonzini
2013-07-05 17:06         ` Tomoki Sekiyama
2013-07-08 13:58           ` Laszlo Ersek [this message]
2013-07-08 14:16             ` Tomoki Sekiyama
2013-07-08 14:44               ` Laszlo Ersek
2013-07-03 15:49 ` [Qemu-devel] [PATCH v5 11/11] QMP/qemu-ga-client: Make timeout longer for guest-fsfreeze-freeze command Tomoki Sekiyama

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