linux-kernel - Re: [PATCH v2] f2fs: add f2fs_ioc_[get|set]_extra

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Date:   Thu, 1 Jun 2023 11:06:03 +0800
From:   Chao Yu <chao@...nel.org>
To:     Sheng Yong <shengyong@...o.com>, jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] f2fs: add f2fs_ioc_[get|set]_extra_attr

On 2023/5/30 14:34, Sheng Yong wrote:
> This patch introduces two ioctls:
>    * f2fs_ioc_get_extra_attr
>    * f2fs_ioc_set_extra_attr
> to get or modify values in extra attribute area.
> 
> The argument of these two ioctls is `struct f2fs_extra_attr', which has
> three members:
>    * field: indicates which field in extra attribute area is handled
>    * attr: value or userspace pointer
>    * attr_size: size of `attr'
> 
> The `field' member could help extend functionality of these two ioctls
> without modify or add new interfaces, if more fields are added into
> extra attributes ares in the feture.
> 
> Signed-off-by: Sheng Yong <shengyong@...o.com>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,