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Date: Tue, 15 Oct 2019 01:01:02 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Eric Sandeen <sandeen@sandeen.net>
Subject: Re: [PATCH] xfs: introduce "metasync" api to sync metadata to fsblock
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Cc: Jan Kara <jack@suse.cz>, Eric Sandeen <esandeen@redhat.com>,
 "Darrick J. Wong" <darrick.wong@oracle.com>, Jan Kara <jack@suse.com>,
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On Mon, Oct 14, 2019 at 03:09:48PM -0500, Eric Sandeen wrote:
> We're in agreement here.  ;)  I only worry about implementing things like this
> which sound like guarantees, but aren't, and end up encouraging bad behavior
> or promoting misconceptions.
> 
> More and more, I think we should reconsider Darrick's "bootfs" (ext2 by another
> name, but with extra-sync-iness) proposal...

Having a separate simple file system for the boot loader makes a lot of
sense.  Note that vfat of EFI is the best choice, but at least it is
something.  SysV Unix from the 90s actually had a special file system just
for that, and fs/bfs/ in Linux supports that.  So this isn't really a new
thing either.