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From:   David Howells <dhowells@redhat.com>
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To:     "J. Bruce Fields" <bfields@fieldses.org>
Cc:     dhowells@redhat.com, Trond Myklebust <trondmy@hammerspace.com>,
        Anna Schumaker <anna.schumaker@netapp.com>,
        Steve French <sfrench@samba.org>,
        Dominique Martinet <asmadeus@codewreck.org>,
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        Matthew Wilcox <willy@infradead.org>,
        linux-afs@lists.infradead.org, Jeff Layton <jlayton@redhat.com>,
        David Wysochanski <dwysocha@redhat.com>,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        linux-cachefs@redhat.com, linux-nfs@vger.kernel.org,
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        v9fs-developer@lists.sourceforge.net,
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Subject: Re: [RFC][PATCH 00/25] Network fs helper library & fscache kiocb API
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Date:   Fri, 22 Jan 2021 16:06:46 +0000
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J. Bruce Fields <bfields@fieldses.org> wrote:

> > J. Bruce Fields <bfields@fieldses.org> wrote:
> > > So, I'm still confused: there must be some case where we know fscach=
e
> > > actually works reliably and doesn't corrupt your data, right?
> > =

> > Using ext2/3, for example.  I don't know under what circumstances xfs,=
 ext4
> > and btrfs might insert/remove blocks of zeros, but I'm told it can hap=
pen.
> =

> Do ext2/3 work well for fscache in other ways?

Ext3 shouldn't be a problem.  That's what I used when developing it.  I'm =
not
sure if ext2 supports xattrs, though.

David