Re: [PATCH v5] f2fs: introduce device aliasing file

[Chao Yu]

On 2024/10/11 3:26, Daeho Jeong wrote:
> From: Daeho Jeong <daehojeong@xxxxxxxxxx>
>
> F2FS should understand how the device aliasing file works and support
> deleting the file after use. A device aliasing file can be created by
> mkfs.f2fs tool and it can map the whole device with an extrent, not
> using node blocks. The file space should be pinned and normally used for
> read-only usages.
>
> Signed-off-by: Daeho Jeong <daehojeong@xxxxxxxxxx>
> Signed-off-by: Chao Yu <chao@xxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

> ---
> v5: added a ioctl to know whether a file is for device aliasing

IMO, maybe we need to add a common wrapper to export all trivial flags of
f2fs, which can improve scalability, it benefits the case whenever we want
to export new flags.

Thanks,