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Re: [PATCH] block: Reject misaligned write requests with BDRV_REQ_NO_FAL
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From: |
Alberto Garcia |
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Subject: |
Re: [PATCH] block: Reject misaligned write requests with BDRV_REQ_NO_FALLBACK |
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Date: |
Mon, 14 Oct 2019 13:13:44 +0200 |
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User-agent: |
Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) |
On Mon 14 Oct 2019 12:11:52 PM CEST, Vladimir Sementsov-Ogievskiy wrote:
> 13.10.2019 23:48, Alberto Garcia wrote:
>> The BDRV_REQ_NO_FALLBACK flag means that an operation should only be
>> performed if it can be offloaded or otherwise performed efficiently.
>
> As I know, BDRV_REQ_NO_FALLBACK is for write-zeros only, not about
> offloading..
I just used the same wording from the documentation in block.h:
/* Execute the request only if the operation can be offloaded or otherwise
* be executed efficiently, but return an error instead of using a slow
* fallback. */
Berto