Re: [PATCH 11/16] f2fs: add inode operations for special inodes

From: Arnd Bergmann
Date: Wed Oct 17 2012 - 08:25:00 EST

On Tuesday 16 October 2012, Jaegeuk Kim wrote:
> >
> > > > An xattr on the root inode that holds a list like this is something
> > > > that could be set at mkfs time, but then also updated easily by new
> > > > software packages that are installed...
> >
> > Yes, good idea.
> Likewise many file systems, f2fs also supports xattr as a configurable
> Kconfig option.
> If user disables the xattr feature, how can we do this?

I can see three options here:

* make the extension list feature dependent on xattr, and treat all files
the same if it's disabled.

* put the list into the superblock instead.

* fall back on a hardcoded list of extensions when the extended attribute
is not present or the feature is disabled.

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