[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-block] [PATCH v10 5/9] block: treat BDRV_REQ_ALLOCATE as seria
|
From: |
Anton Nefedov |
|
Subject: |
Re: [Qemu-block] [PATCH v10 5/9] block: treat BDRV_REQ_ALLOCATE as serialising |
|
Date: |
Thu, 13 Dec 2018 11:57:36 +0000 |
On 12/12/2018 3:48 PM, Vladimir Sementsov-Ogievskiy wrote:
> 05.12.2018 17:01, Anton Nefedov wrote:
>> --- a/include/block/block.h
>> +++ b/include/block/block.h
>> @@ -87,6 +87,9 @@ typedef enum {
>> * efficiently allocate the space so it reads as zeroes, or return
>> an error.
>> * If this flag is set then BDRV_REQ_ZERO_WRITE must also be set.
>> * This flag cannot be set together with BDRV_REQ_MAY_UNMAP.
>> + * This flag implicitly behaves as BDRV_REQ_SERIALISING i.e. it is
>> + * protected from conflicts with overlapping requests. If such
>> conflict is
>> + * detected, -EAGAIN is returned.
>
> "behaves as" sounds like "do the same" for me, so better is "implicitly sets"
> or something like this.
>
"implicitly sets" is good enough for me
- Re: [Qemu-block] [PATCH v10 6/9] file-posix: support BDRV_REQ_ALLOCATE, (continued)
Re: [Qemu-block] [PATCH v10 6/9] file-posix: support BDRV_REQ_ALLOCATE, Alberto Garcia, 2018/12/07
[Qemu-block] [PATCH v10 9/9] iotest 134: test cluster-misaligned encrypted write, Anton Nefedov, 2018/12/03
[Qemu-block] [PATCH v10 5/9] block: treat BDRV_REQ_ALLOCATE as serialising, Anton Nefedov, 2018/12/03
[Qemu-block] [PATCH v10 8/9] qcow2: skip writing zero buffers to empty COW areas, Anton Nefedov, 2018/12/03
Re: [Qemu-block] [PATCH v10 8/9] qcow2: skip writing zero buffers to empty COW areas, Vladimir Sementsov-Ogievskiy, 2018/12/13
Re: [Qemu-block] [PATCH v10 8/9] qcow2: skip writing zero buffers to empty COW areas, Vladimir Sementsov-Ogievskiy, 2018/12/14