linux-kernel - Re: [PATCH v5] f2fs: introduce device aliasing file

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Message-ID: <CACOAw_yvb=jacbXVr76bSbCEcud=D1vw5rJVDO+TjZbMLYzdZQ@mail.gmail.com>
Date: Mon, 14 Oct 2024 09:28:04 -0700
From: Daeho Jeong <daeho43@...il.com>
To: Christoph Hellwig <hch@...radead.org>
Cc: linux-kernel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, 
	kernel-team@...roid.com, Daeho Jeong <daehojeong@...gle.com>, Chao Yu <chao@...nel.org>
Subject: Re: [PATCH v5] f2fs: introduce device aliasing file

On Sun, Oct 13, 2024 at 10:56 PM Christoph Hellwig <hch@...radead.org> wrote:
>
> On Thu, Oct 10, 2024 at 12:26:26PM -0700, Daeho Jeong wrote:
> > From: Daeho Jeong <daehojeong@...gle.com>
> >
> > 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
>
> s/extrent/extent/g
>
> > using node blocks. The file space should be pinned and normally used for
> > read-only usages.
>
> Is there an explanation somewhere what a 'device aliasing file' is?

Plz, refer to this patch and the description there.

https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git/commit/?h=dev-test&id=8cc4e257ec20bee207bb034d5ac406e1ab31eaea

Thank you,


>