qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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


From: Peter Lieven
Subject: Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes()
Date: Fri, 15 Jul 2016 12:09:36 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0

Am 05.07.2016 um 17:09 schrieb Paolo Bonzini:
>
> On 05/07/2016 16:59, Eric Blake wrote:
>> And yes, we could probably switch to (potentially slower) / % * instead
>> of bit operations in block/io.c to accommodate a non-power-of-2 optimal
>> size, but it would require a careful audit to make sure we don't have
>> even more bit-wise operations lurking that were assuming a power of 2.
> Yes, it would require some auditing but it has always worked.  Regarding
> speed, I'm sure that / % * are not slower than a system call! :)

Eric, whats the status of this? Will you send a follow-up to your series
restoring the old behaviour?

Thanks,
Peter




reply via email to

[Prev in Thread] Current Thread [Next in Thread]