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Re: [PATCH] block: Introduce zero-co:// and zero-aio://
From: |
Kevin Wolf |
Subject: |
Re: [PATCH] block: Introduce zero-co:// and zero-aio:// |
Date: |
Wed, 10 Mar 2021 18:37:58 +0100 |
Am 10.03.2021 um 15:17 hat fam@euphon.net geschrieben:
> From: Fam Zheng <famzheng@amazon.com>
>
> null-co:// has a read-zeroes=off default, when used to in security
> analysis, this can cause false positives because the driver doesn't
> write to the read buffer.
>
> null-co:// has the highest possible performance as a block driver, so
> let's keep it that way. This patch introduces zero-co:// and
> zero-aio://, largely similar with null-*://, but have read-zeroes=on by
> default, so it's more suitable in cases than null-co://.
>
> Signed-off-by: Fam Zheng <fam@euphon.net>
> ---
> block/null.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++
If we're adding new block drivers, there should certainly be some QAPI
schema updates here.
Kevin