lkml.org 
[lkml]   [2008]   [Jun]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [RFC 0/7] [RFC] cramfs: fake write support
Date

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


\
 
 \ /
  Last update: 2008-06-03 13:09    [W:0.054 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site