linux-kernel - Re: [RFC][PATCH 00/25] Network fs helper library & fscache kiocb API

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <2085147.1611331606@warthog.procyon.org.uk>
Date:   Fri, 22 Jan 2021 16:06:46 +0000
From:   David Howells <dhowells@...hat.com>
To:     "J. Bruce Fields" <bfields@...ldses.org>
Cc:     dhowells@...hat.com, Trond Myklebust <trondmy@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        Steve French <sfrench@...ba.org>,
        Dominique Martinet <asmadeus@...ewreck.org>,
        Takashi Iwai <tiwai@...e.de>,
        Matthew Wilcox <willy@...radead.org>,
        linux-afs@...ts.infradead.org, Jeff Layton <jlayton@...hat.com>,
        David Wysochanski <dwysocha@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-cachefs@...hat.com, linux-nfs@...r.kernel.org,
        linux-cifs@...r.kernel.org, ceph-devel@...r.kernel.org,
        v9fs-developer@...ts.sourceforge.net,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 00/25] Network fs helper library & fscache kiocb API

J. Bruce Fields <bfields@...ldses.org> wrote:

> > J. Bruce Fields <bfields@...ldses.org> wrote:
> > > So, I'm still confused: there must be some case where we know fscache
> > > 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 happen.
> 
> 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