Re: [Squashfs-devel] squashfs xattr support?

[Helge B. <hel...@se...>]

Am Tuesday 20 April 2010 11:57:18 schrieb Phillip Lougher:
> Stephen Hemminger wrote:
> > Vyatta uses squashfs both for livecd and installed image mode, and in
> > order to support SELinux properly we need xattr supported on squashfs.
> >
> > I know the current version of squashfs doesn't support xattr, and there
> > are hints of future support. But we need it sooner, does anybody have a
> > "back of the envelope" description of how they expect it to work
> > (data formats etc), I am perfectly willing to fill in the missing code.
>
> I implemented most of the xattr support for Squashfs 4.0 in 2008, but
> abandoned it to concentrate on getting Squashfs mainlined for 2.6.29.
> The xattr file system format was defined and I had initial xattr support
> in mksquashfs.  The major thing missing was kernel code...   Rather than
> go through a fourth or fifth kernel code review process (the non-xattr
> kernel code had successfully gone through three kernel reviews),
> I submitted the non-xattr code for 2.6.29 and it was accepted.
>
> I can dig out the code and finish it off, looking at Helge's kernel patch
> there's less work to do in the kernel than I anticipated.  Unfortunately
> since mainlining no-one's asked for xattr support and consequently it's
> been of less priority to finish than working on paid Squashfs work
> (adding additional compression formats).

ping? Any news on how you would like to proceed wrt xattrs?

Are you going to implement them (any timeline)? Are you interested in taking my 
patches or having me change them in any ways?

Or are you too busy (or not interested in the topic) and would prefer 
squashfs+xattr to be brought forward without any involvement on your part? (I 
have certainly no problem in doing everything by myself and submitting for 
inclusion into Linux, but obtaining your acknowledgement is a matter of 
politeness.)

Best regards
-- 
Dr.-Ing.
Helge Bahmann
Berater
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