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Re: [Qemu-devel] [PATCH v4 03/11] block: allow serialized reads to inter
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From: |
Vladimir Sementsov-Ogievskiy |
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Subject: |
Re: [Qemu-devel] [PATCH v4 03/11] block: allow serialized reads to intersect |
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Date: |
Wed, 7 Nov 2018 10:08:35 +0000 |
06.11.2018 20:57, Kevin Wolf wrote:
> Am 15.10.2018 um 18:06 hat Vladimir Sementsov-Ogievskiy geschrieben:
>> Otherwise, if we have serialized read-part in copy_range from backing
>> file to its parent if CoW take place, this CoW's sub-reads will
>> intersect with firstly created serialized read request.
>>
>> Anyway, reads should not influence on disk view, let's allow them to
>> intersect.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> What about reads that internally trigger writes, such as copy-on-read?
oops :). yes, I've to rethink this thing.
>
> Kevin
--
Best regards,
Vladimir