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From: hooanon05@yahoo.co.jp
To: Arnd Bergmann <arnd@arndb.de>
Cc: Jamie Lokier <jamie@shareable.org>,
	Phillip Lougher <phillip@lougher.demon.co.uk>,
	David Newall <davidn@davidnewall.com>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	hch@lst.de
Subject: Re: [RFC 0/7] [RFC] cramfs: fake write support
Date: Tue, 03 Jun 2008 20:04:41 +0900	[thread overview]
Message-ID: <8486.1212491081@jrobl> (raw)
In-Reply-To: <200806021701.17076.arnd@arndb.de>


Arnd Bergmann:
> Any writes should always just go to the top level. If the source file
> for link() exists on the top level, link should succeed even if a target
> exists on a lower level (given that the user has permissions to
> unlink that file), but should return EXDEV if the source comes from
> a lower level.

Then what will happen when a user builds a union by "empty tmpfs" +
"cramfs"? Following your design, link(2) becomes useless in stacking fs.

You may be considering to implement a new dynamic link library for
stacking.
Hmm, that is intersting. It may be worth to think.


Junjiro Okajima

  reply	other threads:[~2008-06-03 11:05 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-31 15:37 [RFC 0/7] [RFC] cramfs: fake write support arnd
2008-05-31 18:56 ` David Newall
2008-05-31 20:40   ` Arnd Bergmann
2008-06-01  3:54     ` Phillip Lougher
2008-06-01  8:52       ` Arnd Bergmann
2008-06-01 12:28       ` Jamie Lokier
2008-06-01 21:49         ` Arnd Bergmann
2008-06-02  2:48           ` hooanon05
2008-06-02  3:25             ` Erez Zadok
2008-06-02  7:51               ` Arnd Bergmann
2008-06-02 18:13                 ` Erez Zadok
2008-06-03  2:02                   ` Phillip Lougher
2008-06-02  3:51             ` Erez Zadok
2008-06-02 11:07               ` Jamie Lokier
2008-06-02  4:37             ` Erez Zadok
2008-06-02  6:07               ` Bharata B Rao
2008-06-02  7:17               ` Jan Engelhardt
2008-06-02  7:12             ` Arnd Bergmann
2008-06-02 10:36               ` hooanon05
2008-06-02 11:15                 ` Arnd Bergmann
2008-06-02 12:56                   ` hooanon05
2008-06-02 14:13                     ` Arnd Bergmann
2008-06-02 14:33                       ` hooanon05
2008-06-02 15:01                         ` Arnd Bergmann
2008-06-03 11:04                           ` hooanon05 [this message]
2008-06-02 14:54                   ` Evgeniy Polyakov
2008-06-02 17:42                     ` Arnd Bergmann
2008-06-02 15:35               ` Erez Zadok
2008-06-01  6:02     ` David Newall
2008-06-01  9:11       ` Jan Engelhardt
2008-06-01 16:25       ` Jörn Engel
2008-06-01  3:19 ` Phillip Lougher

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