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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
- [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Peter Lieven, 2016/07/04
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Eric Blake, 2016/07/04
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Paolo Bonzini, 2016/07/05
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Peter Lieven, 2016/07/05
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Eric Blake, 2016/07/05
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Paolo Bonzini, 2016/07/05
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(),
Peter Lieven <=
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Eric Blake, 2016/07/15
- Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Peter Lieven, 2016/07/18
Re: [Qemu-devel] Regression: block: Add .bdrv_co_pwrite_zeroes(), Eric Blake, 2016/07/20