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Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes()


From: Paolo Bonzini
Subject: Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes()
Date: Tue, 5 Jul 2016 15:37:23 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1


On 05/07/2016 03:53, Eric Blake wrote:
>> > I think we cannot assert that that these alignments are a power of 2.
> Perhaps that means we should just fix our code to round things down to
> the nearest power of 2 (8MB) for the opt_transfer_len and
> opt_discard_alignment values.  Can you post a stack-trace of the actual
> assertion you are hitting?

It doesn't work for opt_discard_alignment.  Neither 8MB nor 16MB is
aligned to 15MB for example.

Paolo



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