Re: [Qemu-devel] [RFC V2 03/10] quorum: Add quorum_open().

[Eric Blake <eblake@redhat.com>]

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On 08/07/2012 02:30 PM, Blue Swirl wrote:
> On Tue, Aug 7, 2012 at 1:44 PM, Benoît Canet <benoit.canet@gmail.com> wrote:
>> Signed-off-by: Benoit Canet <benoit@irqsave.net>
>> ---
>>  block/quorum.c |   62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  1 file changed, 62 insertions(+)
>>
>> diff --git a/block/quorum.c b/block/quorum.c
>> index e0405b6..de58ab8 100644
>> --- a/block/quorum.c
>> +++ b/block/quorum.c
>> @@ -47,11 +47,73 @@ struct QuorumAIOCB {
>>      int vote_ret;
>>  };
>>
>> +/* Valid quorum filenames look like
>> + * quorum:path/to/a_image:path/to/b_image:path/to/c_image
> 
> This syntax would mean that stacking for example curl or other network
> paths would not be possible. How about comma as separator?

Also, what escaping mechanism is in place for allowing a file containing
the same character as the separator (whether you end up with : or , as
the separator)?  If you support a larger quorum (whether always n/(2n-1)
or whether fully configurable n/m), rather than hard-coded 2/3, then you
also need a way to specify how many quorum members will follow.

-- 
Eric Blake   eblake@redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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